# Top10k Tools

> Free online tool directory: 4578 browser-based tools across 76 categories. No signup, no upload — everything runs client-side.

Generated: 2026-06-04. Canonical: https://top10k.com/llms.txt — full enumeration at https://top10k.com/llms-full.txt

## Categories

- [Text Tools](https://top10k.com/category/text) — 165 tools.
- [Color Tools](https://top10k.com/category/color) — 140 tools.
- [Image Tools](https://top10k.com/category/image) — 132 tools.
- [PDF Tools](https://top10k.com/category/pdf) — 44 tools.
- [Developer Tools](https://top10k.com/category/code) — 400 tools.
- [SEO Tools](https://top10k.com/category/seo) — 40 tools.
- [Security & Privacy](https://top10k.com/category/security) — 22 tools.
- [Generators](https://top10k.com/category/generator) — 65 tools.
- [Number Tools](https://top10k.com/category/number) — 64 tools.
- [Date & Time](https://top10k.com/category/datetime) — 144 tools.
- [Unit Converters](https://top10k.com/category/unit) — 385 tools.
- [Finance Tools](https://top10k.com/category/finance) — 186 tools.
- [Health & Fitness](https://top10k.com/category/health) — 259 tools.
- [Marketing Tools](https://top10k.com/category/marketing) — 6 tools.
- [Education](https://top10k.com/category/education) — 37 tools.
- [Productivity](https://top10k.com/category/productivity) — 42 tools.
- [Language Tools](https://top10k.com/category/language) — 26 tools.
- [Music Tools](https://top10k.com/category/music) — 39 tools.
- [Travel Tools](https://top10k.com/category/travel) — 30 tools.
- [Food & Cooking](https://top10k.com/category/food) — 75 tools.
- [Science Tools](https://top10k.com/category/science) — 154 tools.
- [Gaming Tools](https://top10k.com/category/gaming) — 36 tools.
- [Space & Astronomy](https://top10k.com/category/space) — 57 tools.
- [Culture & Trivia](https://top10k.com/category/culture) — 10 tools.
- [Symbols & Unicode](https://top10k.com/category/symbols) — 41 tools.
- [Sports Tools](https://top10k.com/category/sports) — 44 tools.
- [Engineering Tools](https://top10k.com/category/engineering) — 416 tools.
- [Audio Tools](https://top10k.com/category/audio) — 93 tools.
- [Video Tools](https://top10k.com/category/video) — 86 tools.
- [Biology Tools](https://top10k.com/category/biology) — 41 tools.
- [Networking Tools](https://top10k.com/category/networking) — 36 tools.
- [E-Commerce Tools](https://top10k.com/category/ecommerce) — 9 tools.
- [Math Calculators](https://top10k.com/category/math) — 287 tools.
- [Agriculture Tools](https://top10k.com/category/agriculture) — 51 tools.
- [Automotive Tools](https://top10k.com/category/automotive) — 30 tools.
- [Weather Tools](https://top10k.com/category/weather) — 21 tools.
- [Chemistry Tools](https://top10k.com/category/chemistry) — 168 tools.
- [Aviation Tools](https://top10k.com/category/aviation) — 21 tools.
- [Accessibility Tools](https://top10k.com/category/accessibility) — 10 tools.
- [Astrology Tools](https://top10k.com/category/astrology) — 24 tools.
- [Construction Tools](https://top10k.com/category/construction) — 63 tools.
- [Gardening Tools](https://top10k.com/category/gardening) — 10 tools.
- [Real Estate Tools](https://top10k.com/category/real-estate) — 24 tools.
- [Beauty Tools](https://top10k.com/category/beauty) — 8 tools.
- [Currency Converters](https://top10k.com/category/currency) — 236 tools.
- [Pet Tools](https://top10k.com/category/pets) — 7 tools.
- [Crypto Tools](https://top10k.com/category/crypto) — 21 tools.
- [Social Media Tools](https://top10k.com/category/social-media) — 7 tools.
- [Dev Utilities](https://top10k.com/category/dev) — 10 tools.
- [Fitness Tools](https://top10k.com/category/fitness) — 7 tools.
- [Physics Tools](https://top10k.com/category/physics) — 44 tools.
- [Electrical Tools](https://top10k.com/category/electrical) — 14 tools.
- [HVAC Tools](https://top10k.com/category/hvac) — 2 tools.
- [Document Tools](https://top10k.com/category/documents) — 68 tools.
- [Ebook Tools](https://top10k.com/category/ebooks) — 22 tools.
- [Statistics Tools](https://top10k.com/category/statistics) — 12 tools.
- [Geography Tools](https://top10k.com/category/geography) — 22 tools.
- [Reference Tools](https://top10k.com/category/reference) — 36 tools.
- [Economics Tools](https://top10k.com/category/economics) — 1 tools.
- [Accounting Tools](https://top10k.com/category/accounting) — 1 tools.
- [Acoustics Tools](https://top10k.com/category/acoustics) — 1 tools.
- [Aerospace Tools](https://top10k.com/category/aerospace) — 1 tools.
- [Anesthesia Tools](https://top10k.com/category/anesthesia) — 1 tools.
- [Astrophysics Tools](https://top10k.com/category/astrophysics) — 2 tools.
- [Baking Tools](https://top10k.com/category/baking) — 1 tools.
- [Marine](https://top10k.com/category/marine) — 8 tools.
- [Writing Tools](https://top10k.com/category/writing) — 1 tools.
- [Home & DIY](https://top10k.com/category/home) — 1 tools.
- [HR & Payroll](https://top10k.com/category/hr) — 1 tools.
- [Insurance Tools](https://top10k.com/category/insurance) — 1 tools.
- [Energy Tools](https://top10k.com/category/energy) — 2 tools.
- [Geology Tools](https://top10k.com/category/geology) — 1 tools.

## Flagship tools

- [Accent / Diacritic Remover](https://top10k.com/tool/accent-remover): Paste text with accented characters and instantly get a clean version with all diacritics stripped.
- [Add Line Numbers](https://top10k.com/tool/add-line-numbers): Instantly prefix each line with sequential numbers. Configure start number, padding width, and separator character.
- [Adverb Counter](https://top10k.com/tool/adverb-counter): Paste your text to instantly count and highlight all "-ly" adverbs, see their frequency, and get a density score.
- [Analogous Color Finder](https://top10k.com/tool/analogous-color-finder): Enter a base color and get the two to four adjacent colors on the color wheel.
- [Baseline Grid Calculator](https://top10k.com/tool/baseline-grid-calculator): Enter your font size and line height to generate a baseline grid with vertical rhythm values for consistent typography.
- [Brand Color Finder](https://top10k.com/tool/brand-color-finder): Search a company name to get its official brand colors with HEX and RGB codes.
- [Aspect Ratio Calculator](https://top10k.com/tool/aspect-ratio-calculator): Enter any two known values (width, height, or ratio) to instantly calculate the missing dimension and see the simplified ratio.
- [AVIF to BMP Converter](https://top10k.com/tool/avif-to-bmp-image): Upload an AVIF image and download it instantly as a BMP file — all processing happens locally in your browser.
- [AVIF to GIF Converter](https://top10k.com/tool/avif-to-gif-image): Upload an AVIF image and download it as a static GIF — all processing happens entirely in your browser with no file upload.
- [EPUB to PDF Converter](https://top10k.com/tool/epub-to-pdf-ebook): Upload an EPUB ebook and download a clean PDF — all processed locally in your browser, never uploaded to any server.
- [Excel to EPUB Converter](https://top10k.com/tool/excel-to-epub-doc): Upload an Excel or CSV file to view its data as a formatted table and download it as an HTML document ready for EPUB conversion.
- [Excel to JPG Converter](https://top10k.com/tool/excel-to-jpg-doc): Upload an Excel or CSV file, choose a sheet, adjust styling, and download a JPG image of your spreadsheet — 100% private, no server upload.
- [ADLER32 Hash Generator](https://top10k.com/tool/adler32-hash-generator): Type or paste any text to instantly compute its Adler-32 checksum in decimal and hexadecimal.
- [AES Key Strength Analyzer](https://top10k.com/tool/aes-key-strength): Paste a hex or base64 AES key to instantly check its length, entropy, and common weaknesses.
- [Apache VirtualHost Generator](https://top10k.com/tool/apache-vhost-generator): Fill in domain and directory settings to get a complete Apache VirtualHost block.
- [Ad Copy Character Counter](https://top10k.com/tool/ad-copy-character-counter): Paste your ad copy into any field and instantly see whether each headline, description, or URL fits within Google Ads, Meta Ads, or Linke…
- [Anchor Text Checker](https://top10k.com/tool/anchor-text-checker): Paste HTML to extract and classify every anchor tag by type: exact-match, partial-match, branded, naked URL, generic, or image.
- [Article Schema Generator](https://top10k.com/tool/article-schema-generator): Fill in your article details and get valid JSON-LD Article/NewsArticle/BlogPosting structured data ready to paste into your page head.
- [2FA Code Generator](https://top10k.com/tool/2fa): Enter your 2FA secret key and get the current 6-digit TOTP code with a live countdown.
- [Bcrypt Hash Verifier](https://top10k.com/tool/bcrypt-verify): Enter a plaintext password and a bcrypt hash to instantly verify whether they match — all client-side, nothing sent to any server.
- [Bulk Password Generator](https://top10k.com/tool/bulk-password-generator): Generate up to 100 unique passwords at once with configurable length and character sets.
- [Baby Name Generator](https://top10k.com/tool/baby-name-generator): Set your filters, click Generate, and browse 12 name cards — each showing the name, origin, and meaning. Save favorites and export them.
- [Business Name Generator](https://top10k.com/tool/business-name-generator): Select an industry, enter optional keywords, pick a style, and click Generate to get 12 unique business name ideas.
- [Decision Wheel Spinner](https://top10k.com/tool/decision-wheel-spinner): Enter your options, click Spin, and let the wheel pick a winner at random.
- [Circle Area Calculator](https://top10k.com/tool/area-circle): Enter a radius or diameter to instantly get the area and circumference of a circle, with formulas and a scaled SVG diagram.
- [Area of a Circle Calculator](https://top10k.com/tool/area-of-circle): Enter a radius or diameter to instantly calculate a circle's area and circumference with step-by-step formulas.
- [Area of an Equilateral Triangle Calculator](https://top10k.com/tool/area-of-equilateral-triangle): Enter a side length to instantly compute the area, perimeter, height, and circumradius of an equilateral triangle.
- [Add Days To Date](https://top10k.com/tool/add-days-to-date): Enter a start date and a number of days to instantly see the resulting date after adding or subtracting those days.
- [Age Calculator](https://top10k.com/tool/age-calc): Enter your date of birth to instantly see your exact age, total days and hours lived, next birthday countdown, and zodiac sign.
- [Age Calculator](https://top10k.com/tool/age-calculator): Enter your birthdate and instantly see your exact age in years, months, and days — plus a countdown to your next birthday.
- [Acres to Hectares Converter](https://top10k.com/tool/acre-to-hectare): Enter any number of acres and instantly get the equivalent in hectares, with the step-by-step formula.
- [Acres to Square Feet Converter](https://top10k.com/tool/acre-to-square-foot): Convert acres to square feet instantly — enter an acreage value and get the exact square footage with a reverse converter included.
- [Acres to Square Inches Converter](https://top10k.com/tool/acre-to-square-inch): Instantly convert acres to square inches using the exact factor of 6,272,640 square inches per acre.
- [401(k) Calculator](https://top10k.com/tool/401k-calculator): Enter your salary, contribution rate, employer match, and expected return to see your projected 401(k) balance at retirement.
- [Accrued Interest Bond Calculator](https://top10k.com/tool/accrued-interest-bond): Calculate bond accrued interest between coupon dates using Actual/360, Actual/365, or 30/360 day count conventions.
- [Accumulated Depreciation Calculator](https://top10k.com/tool/accumulated-depreciation): Enter asset cost, salvage value, and useful life to get a full depreciation schedule using straight-line, declining balance, or sum-of-ye…
- [A-a Gradient Calculator](https://top10k.com/tool/a-a-gradient-calculator): Enter arterial blood gas values and FiO2 to calculate the A-a oxygen gradient and interpret pulmonary gas exchange.
- [A-a Oxygen Gradient Calculator](https://top10k.com/tool/a-a-oxygen-gradient): Enter patient vitals and arterial blood gas values to calculate the A-a oxygen gradient and interpret the likely cause of hypoxemia.
- [ABCD2 TIA Score Calculator](https://top10k.com/tool/abcd2-tia-detailed): Enter five clinical parameters to compute the ABCD2 score (0–7) and see the estimated 2-day stroke risk after a TIA.
- [Churn Rate Calculator](https://top10k.com/tool/churn-rate-calculator): Enter your starting customers, lost customers, and time period to get churn rate, retention rate, and average customer lifetime.
- [CPA Calculator](https://top10k.com/tool/cpa-calculator): Enter your ad spend and conversions to calculate CPA, ROAS, and break-even revenue per conversion.
- [CPM Calculator](https://top10k.com/tool/cpm-calculator): Enter any two of CPM, budget, or impressions to instantly calculate the missing value for your ad campaign.
- [Attendance Grade Impact](https://top10k.com/tool/attendance-grade-impact): Enter your current grade, number of absences, and attendance policy to see how absences affect your final grade.
- [Attendance Percentage Calculator](https://top10k.com/tool/attendance-percentage-calculator): Enter classes attended and total classes to get your attendance percentage and see how many classes you need to reach your target.
- [Bibliography Formatter](https://top10k.com/tool/bibliography-formatter): Enter source details and choose a citation style to instantly format a bibliography entry in APA, MLA, Chicago, or Harvard.
- [Acronym Generator](https://top10k.com/tool/acronym-generator): Turn a phrase into an acronym, or expand an acronym into meaningful word suggestions — instantly, 100% in your browser.
- [Anagram Solver](https://top10k.com/tool/anagram-solver): Enter up to 12 scrambled letters and instantly find every valid English word you can make — sorted by length, with wildcard support.
- [Bill Splitter](https://top10k.com/tool/bill-splitter): Enter the bill total, tip, and number of people to instantly see how much each person owes — with support for custom per-person amounts.
- [Abbreviation Expander](https://top10k.com/tool/abbreviation-expander): Type any abbreviation or acronym and instantly see its full expansion, category, and a brief description.
- [Character Counter With Spaces](https://top10k.com/tool/character-counter-with-spaces): Paste or type any text to instantly count characters (with and without spaces), words, sentences, paragraphs, and lines.
- [Language Detector](https://top10k.com/tool/language-detector): Paste any text and instantly see its detected language, confidence score, and script type — all processed locally in your browser.
- [432 Hz Converter](https://top10k.com/tool/432hz-converter): Select any musical note and octave to instantly see its frequency in both 440 Hz and 432 Hz tuning, with the exact difference in cents an…
- [Audio File Size Calculator](https://top10k.com/tool/audio-file-size-calculator): Calculate the exact file size of an uncompressed audio file (WAV, AIFF, PCM) by entering sample rate, bit depth, channels, and duration.
- [BPM Tap Counter](https://top10k.com/tool/bpm-tap-counter): Find the BPM of any song instantly. Tap the spacebar or the big tap button along with the beat and get a real-time rolling average with a…
- [Altitude Air Pressure Calculator](https://top10k.com/tool/altitude-air-pressure-calculator): Enter an altitude to instantly calculate air pressure, air density, and effective oxygen percentage using the International Standard Atmo…
- [Australia Country Facts](https://top10k.com/tool/australia-country-facts): Explore key facts about Australia covering geography, population, government, economy, culture, and travel essentials — all in one place.
- [Baggage Allowance Checker](https://top10k.com/tool/baggage-allowance-checker): Enter your bag dimensions and weight, pick an airline and bag type, and instantly see if your luggage meets the allowance.
- [ABV Calculator](https://top10k.com/tool/abv-calculator): Enter your original gravity and final gravity readings to instantly calculate ABV for your homebrewed beer, wine, or cider.
- [Apparent Attenuation Calculator](https://top10k.com/tool/apparent-attenuation-calculator): Enter original gravity and final gravity to instantly calculate your beer's apparent attenuation percentage.
- [Baker's Percentage Calculator](https://top10k.com/tool/baker-percentage-calculator): Enter ingredient weights, see baker's percentages instantly, then scale your recipe to any batch size.
- [Acceleration Calculator](https://top10k.com/tool/acceleration-calculator): Solve for acceleration, initial velocity, final velocity, or time using a = (v - u) / t with multi-unit support.
- [Allele Frequency Calculator](https://top10k.com/tool/allele-frequency-calculator): Enter observed genotype counts to calculate allele frequencies and expected Hardy-Weinberg equilibrium genotype frequencies.
- [Amps to Watts Calculator](https://top10k.com/tool/amps-to-watts): Enter current (amps) and voltage — plus power factor for AC — to instantly calculate power in watts for DC, single-phase AC, or three-pha…
- [Aspect Ratio Game Calculator](https://top10k.com/tool/aspect-ratio-game-calculator): Calculate game resolution, FOV adjustments, and black bar sizes when switching between aspect ratios like 16:9, 4:3, and 21:9.
- [Character Name Generator](https://top10k.com/tool/character-name-generator): Generate random character names for RPGs and fantasy fiction — pick a race, gender, and style, then get a batch of names instantly.
- [Chess Elo Change Calculator](https://top10k.com/tool/chess-elo-change): Enter both players' Elo ratings, select the game result, and instantly see how many rating points each player wins or loses.
- [Altitude Azimuth Calculator](https://top10k.com/tool/altitude-azimuth-calculator): Convert right ascension and declination to altitude and azimuth for any observer location and time.
- [Angular Size Calculator](https://top10k.com/tool/angular-size-calculator): Calculate the angular size of any astronomical object from its physical size and distance.
- [Astrophotography Exposure Calculator](https://top10k.com/tool/astrophoto-exposure-calc): Find the maximum exposure time before stars trail, using the 500 Rule, NPF Rule, or your custom sky conditions.
- [Canada Country Facts](https://top10k.com/tool/canada-country-facts): A structured, fast-loading reference card covering Canada's geography, government, economy, and culture — no Wikipedia wall-of-text.
- [Country Flag Quiz](https://top10k.com/tool/country-flag-quiz): Pick a difficulty and region, then identify each country flag from multiple choices before the timer runs out.
- [France Country Facts](https://top10k.com/tool/france-country-facts): A structured, fast-loading reference card covering France's geography, government, economy, and culture — no Wikipedia wall-of-text.
- [Aesthetic Text Generator](https://top10k.com/tool/aesthetic-text-generator): Type any text and instantly see it transformed into aesthetic Unicode styles — copy each style with one click.
- [Arrow Symbols](https://top10k.com/tool/arrow-symbols): Browse, search, and click to copy any Unicode arrow symbol — directional, double, curved, and decorative arrows included.
- [Bold Text Generator](https://top10k.com/tool/bold-text-generator): Convert normal text to Unicode bold, bold italic, and bold sans-serif styles for social media bios, posts, and messages.
- [10k Pace Calculator](https://top10k.com/tool/10k-pace-calculator): Enter your goal finish time to get pace per km/mile, or enter a pace to get your 10K finish time, with a full per-kilometer split table.
- [5K Pace Calculator](https://top10k.com/tool/5k-pace-calculator): Enter your goal finish time to get pace per km/mile, or enter a pace to get your 5K finish time, with a full per-kilometer split table.
- [Baseball ERA Calculator](https://top10k.com/tool/baseball-era-calculator): Enter earned runs and innings pitched to instantly calculate a baseball pitcher's ERA.
- [Active Earth Pressure Calculator](https://top10k.com/tool/active-earth-pressure): Compute the Rankine active earth pressure coefficient (Ka), total lateral pressure, and resultant force on a retaining wall from soil fri…
- [Activity To Dose Converter](https://top10k.com/tool/activity-to-dose): Convert radioactive activity (Bq or Ci) to absorbed or effective dose (Sv or rem) using standard dose conversion factors.
- [Aluminum Angle Weight Calculator](https://top10k.com/tool/aluminum-angle-weight): Enter the leg widths, thickness, and length of an aluminum angle bar to instantly calculate its weight.
- [AAC to AIFF Converter](https://top10k.com/tool/aac-to-aiff-audio): Generate the exact FFmpeg command to convert AAC audio to lossless AIFF at any bit depth, and estimate the output file size before you ru…
- [AAC to FLAC Converter](https://top10k.com/tool/aac-to-flac-audio): Inspect your AAC file metadata in the browser and generate the exact FFmpeg command to re-encode it to FLAC lossless format.
- [AAC to M4A Converter](https://top10k.com/tool/aac-to-m4a-audio): Get a personalized FFmpeg command to convert any AAC file to M4A — no upload required, runs on your own machine.
- [AVI to FLV Converter](https://top10k.com/tool/avi-to-flv-video): Get the exact FFmpeg command to convert any AVI file to FLV format, with options for codec, bitrate, frame rate, and audio settings.
- [AVI to GIF Converter](https://top10k.com/tool/avi-to-gif-video): Learn how to convert AVI video to animated GIF using free desktop tools, plus calculate GIF output size and file size before you convert.
- [AVI to M4V Converter](https://top10k.com/tool/avi-to-m4v-video): Generate the exact FFmpeg command to convert your AVI video file to M4V format — copy, paste, and run.
- [Allele & Genotype Frequency Calculator](https://top10k.com/tool/allele-genotype-frequency): Enter genotype counts (AA, Aa, aa) or allele frequency p to compute allele and genotype frequencies, plus a chi-square test for Hardy-Wei…
- [Allometric Scaling Calculator](https://top10k.com/tool/allometric-scaling-calculator): Enter body mass and choose a biological parameter to compute its scaled value using the allometric equation Y = a × M^b.
- [Amino Acid Converter](https://top10k.com/tool/amino-acid-converter): Convert amino acid sequences between one-letter codes, three-letter abbreviations, and full names.
- [ASN Lookup](https://top10k.com/tool/asn-lookup): Validate an Autonomous System Number, generate ready-to-run whois and BGP lookup commands, and learn BGP routing concepts — all client-side.
- [Bandwidth Calculator](https://top10k.com/tool/bandwidth-calculator): Enter a file size and connection speed to calculate transfer time, or enter a file size and target time to calculate the required bandwidth.
- [Binary to IP Address Converter](https://top10k.com/tool/binary-to-ip-converter): Convert a 32-bit binary string to a dotted-decimal IPv4 address or an IPv4 address back to binary — instantly in your browser.
- [Break-Even Units Calculator](https://top10k.com/tool/break-even-units-calculator): Enter your fixed costs, variable cost per unit, and selling price to instantly see how many units you must sell to break even.
- [COGS Calculator](https://top10k.com/tool/cogs-calculator): Enter beginning inventory, purchases, and ending inventory to calculate COGS, gross profit, and gross margin instantly.
- [Customer Lifetime Value Calculator](https://top10k.com/tool/customer-lifetime-value-calculator): Enter your average order value, purchase frequency, and customer lifespan to calculate how much each customer is worth over their lifetime.
- [Absolute Value Calculator](https://top10k.com/tool/absolute-value-calculator): Enter any real number and instantly get its absolute value with a visual number line.
- [Accuracy Calculator](https://top10k.com/tool/accuracy-calculator): Enter TP, FP, FN, TN from a confusion matrix to instantly calculate accuracy, precision, recall, F1 score, and specificity.
- [Arc Length Calculator](https://top10k.com/tool/arc-length-calculator): Enter a radius and central angle (degrees or radians) to instantly get arc length, chord length, and sector area.
- [Board Foot Calculator](https://top10k.com/tool/board-foot-calculator): Calculate board feet of lumber from thickness, width, and length across multiple pieces, with optional total cost estimate.
- [Carbon Footprint Calculator](https://top10k.com/tool/carbon-footprint-calculator): Enter your household energy use, driving, and flight data to see your annual CO2 footprint with a breakdown chart and offset cost estimates.
- [Chicken Feed Calculator](https://top10k.com/tool/chicken-feed-calculator): Enter your flock size, breed size, and production stage to instantly calculate daily and weekly feed amounts plus estimated feed cost.
- [0 To 60 Calculator](https://top10k.com/tool/0-to-60-calculator): Estimate your vehicle's 0-60 mph or 0-100 km/h time using horsepower, weight, and drivetrain type.
- [Air Fuel Ratio Calculator](https://top10k.com/tool/air-fuel-ratio-calculator): Enter air mass and fuel mass (or use fuel type presets) to instantly calculate AFR, lambda, and mixture status.
- [Axle Ratio Calculator](https://top10k.com/tool/axle-ratio-calculator): Enter ring gear and pinion gear tooth counts to instantly calculate your axle ratio and see its effect on engine RPM, vehicle speed, and …
- [Absolute Humidity Calculator](https://top10k.com/tool/absolute-humidity-calculator): Enter temperature and relative humidity to instantly calculate absolute humidity (g/m³), dew point, and actual vapor pressure using the M…
- [Barometric Pressure Converter](https://top10k.com/tool/barometric-pressure-converter): Enter a pressure value in any unit and instantly convert it to hPa, mbar, inHg, mmHg, atm, and kPa, with a weather-condition indicator.
- [Beaufort Wind Scale](https://top10k.com/tool/beaufort-wind-scale): Enter a wind speed in any unit and instantly see the Beaufort force number plus land and sea condition descriptions.
- [Adsorption Capacity Calculator](https://top10k.com/tool/adsorption-capacity): Calculate the equilibrium adsorption capacity (qe) of a material using the Langmuir or Freundlich isotherm equations.
- [Aluminium Element Properties](https://top10k.com/tool/aluminium-element-properties): Complete reference for Aluminium (Al, element 13): atomic data, electron configuration, isotopes, physical constants, and chemical behavior.
- [Antimony Element Properties](https://top10k.com/tool/antimony-element-properties): Explore the complete physical and chemical properties of Antimony (Sb, element 51) — from its metalloid nature to its role in flame retar…
- [Crosswind Component Calculator](https://top10k.com/tool/crosswind-component-calculator): Enter wind speed, wind direction, and runway heading to instantly get crosswind and headwind/tailwind components for preflight planning.
- [Density Altitude Calculator](https://top10k.com/tool/density-altitude-calculator): Enter pressure altitude, temperature, and dewpoint (or relative humidity) to compute density altitude for aviation performance planning.
- [Descent Rate Calculator](https://top10k.com/tool/descent-rate-calculator): Enter current altitude, target altitude, distance to go, and ground speed to find the required descent rate in feet per minute.
- [Alt Text Length Checker](https://top10k.com/tool/alt-text-length): Paste your image alt text and instantly see character count, compliance status, and actionable quality tips.
- [ARIA Role Reference](https://top10k.com/tool/aria-role-reference): Search any WAI-ARIA role to see its required properties, allowed attributes, permitted HTML elements, and a code example.
- [Color Blind Safe Checker](https://top10k.com/tool/color-blind-safe-checker): Enter two colors to see how they appear under three types of color blindness, with WCAG contrast ratios for each simulated view.
- [Aquarius Zodiac Sign Info](https://top10k.com/tool/aquarius-zodiac-info): Explore everything about Aquarius — dates, personality traits, element, ruling planet, compatibility, and lucky numbers in one interactiv…
- [Aries Zodiac Sign Info](https://top10k.com/tool/aries-zodiac-info): Explore everything about Aries — dates, personality traits, element, ruling planet, compatibility, and lucky numbers in one interactive r…
- [Cancer Zodiac Sign Info](https://top10k.com/tool/cancer-zodiac-info): Explore everything about Cancer — dates, personality traits, element, ruling planet, compatibility, and lucky numbers in one interactive …
- [Beam Deflection Calculator](https://top10k.com/tool/beam-deflection-calculator): Calculate maximum deflection of a simply supported beam under a uniform distributed load or a point load at center.
- [Beam Load Calculator](https://top10k.com/tool/beam-load-calculator): Calculate support reactions, maximum bending moment, shear force, and mid-span deflection for a simply-supported beam under a uniform dis…
- [Bearing Load Calculator](https://top10k.com/tool/bearing-load-calculator): Calculate equivalent dynamic bearing load (P), basic rating life L10, and service life L10h in hours using the ISO 281 approach.
- [Garden Compost Calculator](https://top10k.com/tool/compost-calculator-garden): Enter your garden bed dimensions and desired compost depth to instantly see how many cubic yards, cubic feet, and standard bags of compos…
- [Fertilizer Spread Calculator](https://top10k.com/tool/fertilizer-spread-calculator): Enter your area size, target nutrient rate, and fertilizer NPK percentage to instantly calculate how much fertilizer to apply.
- [Garlic Planting Calculator](https://top10k.com/tool/garlic-planting-calculator): Enter your plot size and spacing preferences to instantly see clove count, row layout, and how many seed bulbs to buy.
- [Acreage Calculator](https://top10k.com/tool/acreage-calculator): Enter plot dimensions in feet, yards, or meters to instantly calculate area in acres, square feet, and square meters.
- [Airbnb Revenue Estimator](https://top10k.com/tool/airbnb-revenue-estimator): Enter your nightly rate, occupancy rate, and operating costs to estimate your annual Airbnb gross income, fees, and net revenue.
- [BRRRR Calculator](https://top10k.com/tool/brrrr-calculator): Enter your purchase price, rehab costs, ARV, rent, and refinance terms to see how much cash you pull out, how much equity stays in the de…
- [Body Measurement Tracker](https://top10k.com/tool/body-measurement-tracker): Log and track your body measurements over time — chest, waist, hips, arms, thighs — and see your progress at a glance.
- [Clothing Size Converter](https://top10k.com/tool/clothing-size-converter): Convert clothing sizes between US, UK, EU, and Asian sizing systems for women, men, and children instantly.
- [Hair Developer Volume Calculator](https://top10k.com/tool/developer-volume-calculator): Find the right developer volume (10, 20, 30, or 40 vol) and calculate exactly how much developer to mix with your hair dye based on your …
- [Cardano to EUR Converter](https://top10k.com/tool/ada-to-eur): Enter an ADA amount and the current ADA/EUR rate to instantly see the Euro value — no account or API key needed.
- [Cardano to GBP Converter](https://top10k.com/tool/ada-to-gbp): Enter an ADA amount and your current exchange rate to convert Cardano to British Pounds — all calculated in your browser with no data sen…
- [Cardano to USD Converter](https://top10k.com/tool/ada-to-usd): Enter an ADA amount and your current exchange rate to convert Cardano to US Dollars — all calculated in your browser with no data sent to…
- [Cat Age Calculator](https://top10k.com/tool/cat-age-calculator): Enter your cat's age to instantly see their equivalent human age and current life stage.
- [Cat Food Portion Calculator](https://top10k.com/tool/cat-food-portion-calculator): Enter your cat's weight, life stage, and activity level to get an accurate daily food portion and per-meal breakdown for dry or wet food.
- [Dog Age Calculator](https://top10k.com/tool/dog-age-calculator): Enter your dog's age and breed size to instantly see their equivalent human age.
- [APY to APR Converter](https://top10k.com/tool/apy-to-apr-converter): Enter an APY and compounding frequency to instantly get the equivalent APR, with a breakdown table for all common frequencies.
- [BTC to Satoshi Converter](https://top10k.com/tool/btc-to-satoshi-converter): Convert any BTC amount to Satoshis instantly, including mBTC and bits, with a full denomination reference table.
- [Crypto DCA Calculator](https://top10k.com/tool/crypto-dca-calculator): Enter your crypto purchase history and current price to see your average cost basis, total invested, portfolio value, and profit or loss.
- [Follower Growth Calculator](https://top10k.com/tool/follower-growth-calculator): Enter your starting and ending follower counts to instantly calculate growth rate, net gain, and projected future followers.
- [Hashtag Generator](https://top10k.com/tool/hashtag-generator-social): Enter a topic or keyword and get curated hashtag suggestions grouped by High, Medium, and Niche popularity tiers — ready to copy.
- [Influencer Rate Calculator](https://top10k.com/tool/influencer-rate-calculator): Enter your follower count, engagement rate, and platform to get an estimated fair rate for a sponsored post.
- [Base64 Encoder](https://top10k.com/tool/base64-encode): Paste text or upload a file and get the Base64-encoded string instantly.
- [CSV to Markdown Table](https://top10k.com/tool/csv-to-markdown-table): Paste CSV data and instantly get a clean Markdown table with live preview — no server, no upload.
- [Date To Epoch](https://top10k.com/tool/date-to-epoch): Enter a date and time to instantly get the Unix epoch timestamp in seconds and milliseconds.
- [Cycling FTP Test Calculator](https://top10k.com/tool/cycling-ftp-test): Enter your 20-minute average power or ramp test result to instantly calculate your FTP and all 7 training power zones.
- [Cycling W' (W-Prime) Calculator](https://top10k.com/tool/cycling-w-prime): Enter two or more maximal power–duration efforts and instantly get your Critical Power (CP) and W' (anaerobic work capacity).
- [Dots Coefficient Calculator](https://top10k.com/tool/dots-coefficient): Calculate your Dots score to compare powerlifting totals across different body weights and sexes using the IPF-adopted 2019 formula.
- [Angular Displacement Calculator](https://top10k.com/tool/angular-displacement-calculator): Enter angular velocity and time (or arc length and radius) to instantly calculate angular displacement in radians and degrees.
- [Angular Momentum Calculator](https://top10k.com/tool/angular-momentum-calculator): Compute angular momentum L = I x omega for solid cylinders, hollow cylinders, solid spheres, and thin rods. Supports RPM and rad/s input.
- [Banked Curve Calculator](https://top10k.com/tool/banked-curve-calculator): Find the ideal banking angle for a road curve at a given speed, or find the maximum safe speed for a given bank angle.
- [Band-Pass Filter Calculator](https://top10k.com/tool/band-pass-filter-calculator): Enter R, L, and C values to instantly compute the center frequency, bandwidth, Q factor, and upper/lower -3 dB cutoff frequencies of an R…
- [Coax Impedance Calculator](https://top10k.com/tool/coax-impedance-calculator): Enter inner conductor diameter, outer conductor diameter, and dielectric constant to instantly calculate coaxial cable characteristic imp…
- [dBm to Watts Calculator](https://top10k.com/tool/dbm-to-watts-calculator): Instantly convert dBm to watts and milliwatts, or reverse — watts/mW to dBm — with the standard power formula.
- [Air Conditioner BTU Calculator](https://top10k.com/tool/air-conditioner-btu-calculator): Enter your room dimensions and conditions to find the exact BTU cooling capacity your air conditioner needs.
- [Room Air Changes Calculator](https://top10k.com/tool/room-air-changes): Enter your room dimensions and airflow rate to instantly calculate air changes per hour (ACH) and see if ventilation meets recommended st…
- [EPUB to Excel Converter](https://top10k.com/tool/epub-to-excel-doc): Upload an EPUB file to extract its chapters into a structured table you can copy and paste into Excel.
- [EPUB to HTML Converter](https://top10k.com/tool/epub-to-html-doc): Upload an EPUB file and download a single HTML document containing all its text content — everything runs in your browser, nothing is upl…
- [EPUB to JPG Converter](https://top10k.com/tool/epub-to-jpg-doc): Upload an EPUB file to instantly preview and download its cover image as a JPG — everything runs in your browser.
- [AZW3 to EPUB Converter](https://top10k.com/tool/azw3-to-epub-ebook): Generate a ready-to-run Calibre ebook-convert command to convert AZW3 Kindle ebooks to EPUB, and inspect your local AZW3 file details wit…
- [AZW3 to FB2 Converter](https://top10k.com/tool/azw3-to-fb2-ebook): Generate a ready-to-run Calibre ebook-convert command to convert AZW3 Kindle ebooks to FB2 (FictionBook 2) format — no upload needed.
- [AZW3 to MOBI Converter](https://top10k.com/tool/azw3-to-mobi-ebook): Enter your AZW3 filename and optional metadata, then get the exact Calibre command to convert it to MOBI format — no file upload required.
- [Chi-Square Goodness of Fit](https://top10k.com/tool/chi-square-goodness-of-fit): Enter observed and expected category counts to compute the chi-square statistic, degrees of freedom, and p-value for a goodness-of-fit test.
- [Chi-Square Independence Test](https://top10k.com/tool/chi-square-independence): Enter observed counts in a contingency table to compute the chi-square statistic, degrees of freedom, and p-value for testing independence.
- [Confusion Matrix Calculator](https://top10k.com/tool/confusion-matrix-calculator): Enter TP, FP, FN, and TN values to instantly compute accuracy, precision, recall, F1 score, specificity, and Matthews Correlation Coeffic…
- [Current Time in Dhaka](https://top10k.com/tool/current-time-in-dhaka): See the live current time in Dhaka, Bangladesh (UTC+6) and convert it to any other time zone instantly.
- [Egypt Country Facts](https://top10k.com/tool/egypt-country-facts): Instant reference for key facts about Egypt — capital, population, area, currency, language, government, and more.
- [Egypt Time Zones Overview](https://top10k.com/tool/egypt-time-zones): Egypt operates on Eastern European Time (EET, UTC+2) year-round with no daylight saving time since 2011.
- [1080P Resolution Reference](https://top10k.com/tool/1080p-resolution-reference): Quick-reference specs for 1080p Full HD resolution plus an interactive PPI calculator, bitrate table, and comparison against 720p and 4K.
- [1440P Resolution Reference](https://top10k.com/tool/1440p-resolution-reference): Quick-reference specs for 1440p QHD resolution plus an interactive PPI calculator, bitrate table, and comparison against 1080p and 4K.
- [4K Resolution Reference](https://top10k.com/tool/4k-resolution-reference): Quick-reference specs for 4K Ultra HD (3840x2160) plus an interactive PPI calculator, bitrate table, and comparison against 1080p and 1440p.
- [Equilibrium Price Calculator](https://top10k.com/tool/equilibrium-price-calculator): Enter linear supply and demand functions to instantly find the market equilibrium price and quantity, with a chart.
- [LIFO Inventory Calculator](https://top10k.com/tool/lifo-inventory-calculator): Enter inventory purchases and units sold to compute ending inventory value and cost of goods sold under the LIFO method.
- [Wavelength of Sound Calculator](https://top10k.com/tool/wavelength-of-sound): Enter a frequency and select a medium to instantly calculate the wavelength of that sound wave.
- [Thrust-to-Weight Ratio Calculator](https://top10k.com/tool/thrust-to-weight-ratio): Enter thrust and weight (or mass) values to instantly compute the thrust-to-weight ratio for aircraft, rockets, or spacecraft.
- [MAC Anesthetic Helper](https://top10k.com/tool/mac-anesthetic-helper): Look up standard MAC values for inhaled anesthetics, calculate age-adjusted MAC, and compare agents side by side.
- [Specific Orbital Energy Calculator](https://top10k.com/tool/specific-orbital-energy): Calculate the specific orbital energy of a spacecraft or planet from its speed, orbital radius, and the central body gravitational parame…
- [Sphere of Influence Calculator](https://top10k.com/tool/sphere-of-influence-calculator): Enter the masses of two bodies and their orbital distance to calculate the Hill sphere (gravitational sphere of influence) radius.
- [Bread Proofing Time and Temperature Calculator](https://top10k.com/tool/proofing-time-temperature): Enter your room temperature, yeast percentage, and dough weight to get an estimated proofing time for your bread dough.
- [Anchor Scope Calculator](https://top10k.com/tool/anchor-scope-calculator): Enter water depth, your freeboard, and desired scope ratio to calculate exactly how much anchor rode to let out.
- [Block Coefficient Calculator](https://top10k.com/tool/block-coefficient-calc): Enter displaced volume and hull dimensions to calculate the block coefficient (Cb) of any vessel.
- [Displacement Hull Speed Calculator](https://top10k.com/tool/displacement-hull-speed-calculator): Enter your vessel's waterline length to get its theoretical maximum hull speed in knots and km/h.
- [Book Page Estimator](https://top10k.com/tool/book-page-estimator): Enter your word count and pick a format to instantly see how many pages your book will be.
- [Heater Size Calculator](https://top10k.com/tool/heater-size-calculator): Enter your room dimensions, insulation level, and climate to find the exact BTU or wattage your heater needs.
- [Payroll Tax Calculator](https://top10k.com/tool/payroll-tax-calculator): Estimate US payroll taxes — federal income tax, Social Security, and Medicare — for both employee and employer based on gross wages.
- [Car Insurance Estimator](https://top10k.com/tool/car-insurance-estimator): Enter your driver details and vehicle info to get an estimated annual car insurance premium.
- [Energy Savings Calculator](https://top10k.com/tool/energy-savings-calculator): Enter old and new appliance wattage, daily usage, and your electricity rate to see annual savings and how long before the upgrade pays fo…
- [Wind Power Density Calculator](https://top10k.com/tool/wind-power-density): Calculate wind power density (W/m²) from wind speed and air density to classify wind resource potential.
- [Volcanic Explosivity Index](https://top10k.com/tool/volcanic-explosivity-index): Look up each VEI level (0–8), see what it means, and find real historical eruptions at that level.

## AI Tools (ranked & reviewed)

> Independent AI tool rankings and in-depth reviews — 773 tools across 37 categories, free and paid.

- [Best AI Tools 2026](https://top10k.com/ai) — the AI tools hub.
- [Best AI 3D Model Tools in 2026 (Free & Paid)](https://top10k.com/ai-ai-3d-model)
- [The 10 Best AI Advertising Tools in 2026 (Free & Paid)](https://top10k.com/ai-ai-ads)
- [10 Best AI Agents Tools and Platforms to Use in 2026](https://top10k.com/ai-ai-agents)
- [Best AI All-in-One Tools in 2026 (Tested & Ranked)](https://top10k.com/ai-ai-all-in-one)
- [Best AI App Tools in 2026 (Free & Paid Options Ranked)](https://top10k.com/ai-ai-app)
- [10 Best AI Assistant Tools in 2026 – Ranked & Reviewed](https://top10k.com/ai-ai-assistant)
- [10 Best AI Audio Tools in 2026 | Ranked & Reviewed](https://top10k.com/ai-ai-audio)
- [Best AI Character Creation Tools in 2026 (Free & Paid)](https://top10k.com/ai-ai-character)
- [7 Best AI Chatbot Tools in 2026 (Ranked & Reviewed)](https://top10k.com/ai-ai-chatbot)
- [Best AI Copywriter Tools in 2026 (Free & Paid)](https://top10k.com/ai-ai-copywriter)
- [Best AI Data Tools in 2026 (Free & Paid) | Top Picks](https://top10k.com/ai-ai-data)
- [10 Best AI Design Tools in 2026 | Ranked & Reviewed](https://top10k.com/ai-ai-design)
- [7 Best AI Detector Tools in 2026: Ranked & Reviewed](https://top10k.com/ai-ai-detector)
- [Best AI Document Tools in 2026: Honest Picks (Free & Paid)](https://top10k.com/ai-ai-document)
- [Best AI Tools for Education in 2026 (Free & Paid)](https://top10k.com/ai-ai-education)
- [7 Best AI Email Tools in 2026 — Ranked & Reviewed](https://top10k.com/ai-ai-email)
- [7 Best AI Music Tools for Creators in 2026](https://top10k.com/ai-ai-music)
- [9 Best AI No-Code and Low-Code Tools to Try in 2026](https://top10k.com/ai-ai-no-codelow-code)
- [Best AI Notetaker Tools in 2026: Free & Paid Options](https://top10k.com/ai-ai-notetaker)
- [Best AI Photo Tools in 2026: Top Picks for Every Budget](https://top10k.com/ai-ai-photo)
- [Best AI Presentation Tools in 2026 (Free & Paid)](https://top10k.com/ai-ai-presentation)
- [10 Best AI Productivity Tools in 2026: Ranked & Tested](https://top10k.com/ai-ai-productivity)
- [Best AI Sales Tools in 2026 (Free & Paid Options)](https://top10k.com/ai-ai-sales)
- [10 Best AI SEO Tools for 2026: Ranked and Reviewed](https://top10k.com/ai-ai-seo)
- [10 Best AI Social Media Tools in 2026 – Full Guide](https://top10k.com/ai-ai-social-media)
- [Best AI Thumbnail Tools for YouTube in 2026 (Free & Paid)](https://top10k.com/ai-ai-thumbnail)
- [10 Best AI Tools in 2026: Honest Rankings That Actually Help](https://top10k.com/ai-ai-tools)
- [Best AI Transcription Tools in 2026 (Free & Paid)](https://top10k.com/ai-ai-transcription)
- [Best AI Translation Tools in 2026 (Free & Paid)](https://top10k.com/ai-ai-translation)
- [Best AI Tutor Tools in 2026: Free & Paid Options Ranked](https://top10k.com/ai-ai-tutor)
- [Best AI Video Tools in 2026: Top 10 Picks for Creators](https://top10k.com/ai-ai-video)
- [Best AI Voice Tools in 2026: Free & Paid Options Ranked](https://top10k.com/ai-ai-voice)
- [Best AI Web Scraper Tools in 2026: Free & Paid Options](https://top10k.com/ai-ai-web-scraper)
- [10 Best AI Website Builder Tools for 2026 Reviewed](https://top10k.com/ai-ai-website-builder)
- [9 Best AI Workflow Tools in 2026 | Top Picks Ranked](https://top10k.com/ai-ai-workflow)
- [10 Best AI Writing Tools in 2026 (Tested & Ranked)](https://top10k.com/ai-ai-writing)

### Featured AI tool reviews

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- [OnSpace AI](https://top10k.com/ai/onspace-ai): OnSpace AI is a no-code platform launched in 2024 that uses agentic AI to generate mobile and web apps from plain-text descriptions — no …
- [OpenArt](https://top10k.com/ai/openart): OpenArt is an all-in-one AI creative platform launched in 2022 that offers image generation, video creation, and model training across 50…
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- [PopAi AI Sheets](https://top10k.com/ai/popai-sheets): PopAi AI Sheets is a standalone AI-powered spreadsheet tool (not included in the main PopAi subscription) priced at $10–$20/month, design…