All Free Tools
8,451 free online tools across 85 categories
Every tool here runs in your browser — no sign-up, no upload, nothing to install. Convert files, format code, generate text, run calculations, and check SEO across PDF, image, developer, finance, and unit-conversion tools. Pick one and start.
| Tool | Category | Description | Action |
|---|---|---|---|
|
Black Beans Cups to Grams
|
Food & Cooking | Open | |
|
Black Beans Grams to Cups
|
Food & Cooking | Open | |
|
Black-Scholes Option Price Calculator
|
Finance Tools | Open | |
|
Blackbody Peak Wavelength Calculator
|
Physics Tools | Open | |
|
Blackbody Temperature of a Star
|
Astrophysics Tools | Open | |
|
Blackjack Basic Strategy
|
Gaming Tools | Open | |
|
Bladder Capacity Calculator
|
Health & Fitness | Open | |
|
BLAKE2b Hash Generator
|
Developer Tools | Open | |
|
Blank Line Remover
|
Text Tools | Open | |
|
Blast Drill Pattern Calculator
|
Engineering Tools | Open | |
|
Blast Powder Factor Calculator
|
Engineering Tools | Open | |
|
Blatchford GI Bleed Score Calculator
|
Health & Fitness | Open | |
|
Bleed And Margin Calculator
|
Image Tools | Open | |
|
Blind Size Calculator
|
Home & DIY | Open | |
|
Block Calculator
|
Construction Tools | Open | |
|
Block Coefficient Calculator
|
Marine Tools | Open | |
|
Blocky Text Generator
|
Text Tools | Open | |
|
Blog Name Generator
|
Generators | Open | |
|
Blog Post Outline Generator
|
Text Tools | Open | |
|
Blood Alcohol Content Calculator
|
Health & Fitness | Open | |
|
Blood Flow Poiseuille Calculator
|
Biomedical Engineering Tools | Open | |
|
Blood Pressure Category Checker
|
Health & Fitness | Open | |
|
Blood Pressure Classifier
|
Health & Fitness | Open | |
|
Blood Type Inheritance Calculator
|
Biology Tools | Open | |
|
Blood Type Probability Calculator
|
Biology Tools | Open | |
|
Blood Volume Estimator
|
Health & Fitness | Open | |
|
Bloom Filter Calculator
|
Computer Science Tools | Open | |
|
BMEP Calculator
|
Engine & Combustion Tools | Open | |
|
BMI Calculator
|
Health & Fitness | Open | |
|
BMI Calculator
|
Health & Fitness | Open | |
|
BMI During Pregnancy Calculator
|
Health & Fitness | Open | |
|
BMI Prime Calculator
|
Health & Fitness | Open | |
|
BMP to AVIF Converter
|
Image Tools | Open | |
|
BMP to GIF Converter
|
Image Tools | Open | |
|
BMP to HEIC Converter
|
Image Tools | Open | |
|
BMP to ICO Converter
|
Image Tools | Open | |
|
BMP to JPG Converter
|
Image Tools | Open | |
|
BMP to PNG Converter
|
Image Tools | Open | |
|
BMP to SVG Converter
|
Image Tools | Open | |
|
BMP to TIFF Converter
|
Image Tools | Open | |
|
BMP to WebP Converter
|
Image Tools | Open | |
|
BMR Calculator
|
Health & Fitness | Open | |
|
BMR Katch-McArdle Calculator
|
Health & Fitness | Open | |
|
BNB to EUR Converter
|
Currency Converters | Open | |
|
BNB to GBP Converter
|
Currency Converters | Open | |
|
BNB to USD Converter
|
Currency Converters | Open | |
|
BNB to VND Converter
|
Currency Converters | Open | |
|
Board Feet Calculator
|
Construction Tools | Open |
Showing 769–816 of 8,451 tools