All Free Tools
8,445 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 |
|---|---|---|---|
|
Lean Body Weight Calculator
|
Health & Fitness | Open | |
|
Leap Year Checker
|
Developer Tools | Open | |
|
Learning Rate Scheduler Helper
|
Developer Tools | Open | |
|
Lease vs Buy Car Calculator
|
Automotive Tools | Open | |
|
LED Lumen Calculator
|
Physics Tools | Open | |
|
LED Resistor Calculator
|
Engineering Tools | Open | |
|
LED Savings Calculator
|
Home & DIY | Open | |
|
Leet Speak Translator Tool
|
Text Tools | Open | |
|
Leetspeak Translator
|
Language Tools | Open | |
|
Left Arrow Symbol
|
Symbols & Unicode | Open | |
|
Leg Length Discrepancy Calculator
|
Health & Fitness | Open | |
|
Length Contraction Calculator
|
Science Tools | Open | |
|
Length Contraction Relativity Calculator
|
Physics Tools | Open | |
|
Length Converter
|
Unit Converters | Open | |
|
Lens Equation Calculator
|
Science Tools | Open | |
|
Lensmaker Equation Calculator
|
Physics Tools | Open | |
|
Lentils Cups to Grams
|
Food & Cooking | Open | |
|
Lentils Grams to Cups
|
Food & Cooking | Open | |
|
Leo Zodiac Sign Info
|
Astrology Tools | Open | |
|
Less Formatter
|
Developer Tools | Open | |
|
Less Than Or Equal Symbol
|
Symbols & Unicode | Open | |
|
Less to CSS Compiler
|
Developer Tools | Open | |
|
Letter Grade Converter
|
Education | Open | |
|
Letter Spacing Calculator
|
Design Tools | Open | |
|
Levain Build Calculator
|
Food & Cooking | Open | |
|
Level of Service (LOS) Helper
|
Engineering Tools | Open | |
|
Levelized Cost of Energy Calculator
|
Energy Tools | Open | |
|
Levenshtein Distance Calculator
|
Developer Tools | Open | |
|
Lever Mechanical Advantage
|
Physics Tools | Open | |
|
Levothyroxine Dose Calculator
|
Health & Fitness | Open | |
|
Levothyroxine Weight-Based Dose Calculator
|
Health & Fitness | Open | |
|
Lexile Converter
|
Education | Open | |
|
Libra Zodiac Sign Info
|
Astrology Tools | Open | |
|
License Generator
|
Developer Tools | Open | |
|
Life Expectancy Estimator
|
Health & Fitness | Open | |
|
Life in Weeks Calculator
|
Date & Time | Open | |
|
Life Insurance Needs Calculator
|
Finance Tools | Open | |
|
Life Path Number Calculator
|
Culture & Trivia | Open | |
|
LIFO Inventory Calculator
|
Accounting Tools | Open | |
|
Lift Coefficient Calculator
|
Engineering Tools | Open | |
|
Lift Force Calculator
|
Physics Tools | Open | |
|
Lifting Condensation Level
|
Science Tools | Open | |
|
Light Mode Color Generator
|
Color Tools | Open | |
|
Light Pollution Helper
|
Space & Astronomy | Open | |
|
Light Travel Time Calculator
|
Space & Astronomy | Open | |
|
Light Years to Centimeters Converter
|
Unit Converters | Open | |
|
Light Years to Feet Converter
|
Unit Converters | Open | |
|
Light Years to Furlongs Converter
|
Unit Converters | Open |
Showing 4,177–4,224 of 8,445 tools