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 |
|---|---|---|---|
|
Clothing Emoji List
|
Symbols & Unicode | Open | |
|
Clothing Size Converter
|
Beauty Tools | Open | |
|
Cloud Base Calculator
|
Weather Tools | Open | |
|
Cloud Data Transfer Cost Calculator
|
Dev Utilities | Open | |
|
Cloud Storage Cost Calculator
|
Dev Utilities | Open | |
|
CLP to EUR Converter
|
Currency Converters | Open | |
|
CLP to USD Converter
|
Currency Converters | Open | |
|
CLS Score Interpreter
|
Dev Utilities | Open | |
|
Clutch Torque Calculator
|
Engineering Tools | Open | |
|
CM to EU Shoe Size Converter
|
Unit Converters | Open | |
|
CM to UK Shoe Size Converter
|
Unit Converters | Open | |
|
CM to US Shoe Size Converter
|
Unit Converters | Open | |
|
CMake Snippet Generator
|
Developer Tools | Open | |
|
CMYK to HEX Converter for Web Use
|
Color Tools | Open | |
|
CMYK to HSL Converter
|
Color Tools | Open | |
|
CMYK to HSV Converter
|
Color Tools | Open | |
|
CMYK to HWB Converter
|
Color Tools | Open | |
|
CMYK to LAB Converter
|
Color Tools | Open | |
|
CMYK to RGB Converter for Screen
|
Color Tools | Open | |
|
CMYK to RGBA Converter
|
Color Tools | Open | |
|
CMYK to XYZ Converter
|
Color Tools | Open | |
|
CNC Feed Rate Calculator
|
Home & DIY | Open | |
|
CNY to EUR Converter
|
Currency Converters | Open | |
|
CNY to GBP Converter
|
Currency Converters | Open | |
|
CNY to USD Converter
|
Currency Converters | Open | |
|
CO2 Emission Calculator
|
Agriculture Tools | Open | |
|
CO2 Volumes Calculator for Homebrewing
|
Food & Cooking | Open | |
|
Coax Impedance Calculator
|
Electrical Tools | Open | |
|
Cobalt Electron Configuration
|
Chemistry Tools | Open | |
|
Cobalt Element Properties
|
Chemistry Tools | Open | |
|
Cobalt Oxidation States
|
Chemistry Tools | Open | |
|
Cobb Angle Calculator
|
Health & Fitness | Open | |
|
Cockcroft-Gault CrCl Calculator
|
Health & Fitness | Open | |
|
Cockney Slang Translator
|
Text Tools | Open | |
|
Cocktail Dilution Calculator
|
Food & Cooking | Open | |
|
Cocktail Ratio Calculator
|
Food & Cooking | Open | |
|
Cocoa Powder Cups to Grams Converter
|
Food & Cooking | Open | |
|
Cocoa Powder Grams to Cups Converter
|
Food & Cooking | Open | |
|
Coconut Flour Cups to Grams
|
Food & Cooking | Open | |
|
Coconut Flour Grams to Cups Converter
|
Food & Cooking | Open | |
|
Codon Table Lookup
|
Biology Tools | Open | |
|
Codon Usage Calculator
|
Biology Tools | Open | |
|
Coefficient Of Friction Calculator
|
Physics Tools | Open | |
|
Coefficient of Thermal Expansion by Material
|
Engineering Tools | Open | |
|
Coefficient of Variation Calculator
|
Math Calculators | Open | |
|
Coffee To Water Ratio Calculator
|
Food & Cooking | Open | |
|
COGS Calculator
|
E-Commerce Tools | Open | |
|
Cohen's d Effect Size Calculator
|
Statistics Tools | Open |
Showing 1,297–1,344 of 8,445 tools