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 |
|---|---|---|---|
|
BTU to Electronvolts Converter
|
Unit Converters | Open | |
|
BTU to Foot Pounds Converter
|
Unit Converters | Open | |
|
BTU to Joules Converter
|
Unit Converters | Open | |
|
BTU to Kilocalories Converter
|
Unit Converters | Open | |
|
BTU to Kilojoules Converter
|
Unit Converters | Open | |
|
BTU to Kilowatt Hours Converter
|
Unit Converters | Open | |
|
BTU to Watt Hours Converter
|
Unit Converters | Open | |
|
Bubble Text Generator
|
Text Tools | Open | |
|
Buck Converter Calculator
|
Electrical Tools | Open | |
|
Buffer pH Calculator
|
Chemistry Tools | Open | |
|
Buffer Size to Latency Calculator
|
Audio Tools | Open | |
|
Bulk Buy Savings Calculator
|
Finance Tools | Open | |
|
Bulk Modulus Calculator
|
Engineering Tools | Open | |
|
Bulk Password Generator
|
Security & Privacy | Open | |
|
Bullet Point Symbol
|
Symbols & Unicode | Open | |
|
Bullet Wind Drift Calculator
|
Sports Tools | Open | |
|
BUN to Urea Converter
|
Health & Fitness | Open | |
|
BUN/Creatinine Ratio Calculator
|
Health & Fitness | Open | |
|
Bundle Pricing Calculator
|
E-Commerce Tools | Open | |
|
Bundle Size Budget Calculator
|
Dev Utilities | Open | |
|
Buoyancy Calculator
|
Science Tools | Open | |
|
Buoyant Force Calculator (Archimedes' Principle)
|
Physics Tools | Open | |
|
Burn Fluid Parkland Formula Calculator
|
Health & Fitness | Open | |
|
Burn Lund-Browder Chart
|
Health & Fitness | Open | |
|
Burn Percentage Calculator
|
Health & Fitness | Open | |
|
Burn Rate Calculator
|
Finance Tools | Open | |
|
Burn Rule of Nines Calculator
|
Health & Fitness | Open | |
|
Burndown Helper
|
Productivity | Open | |
|
Burnup Calculator
|
Engineering Tools | Open | |
|
Business Card Generator
|
PDF Tools | Open | |
|
Business Days Calculator
|
Date & Time | Open | |
|
Business Name Generator
|
Generators | Open | |
|
Business Quote Generator
|
Productivity | Open | |
|
Butter Cups to Grams Converter
|
Food & Cooking | Open | |
|
Butter Grams to Cups Converter
|
Food & Cooking | Open | |
|
Butter to Oil Converter
|
Food & Cooking | Open | |
|
Byte Order Mark (BOM) Detector
|
Developer Tools | Open | |
|
Bytes to Bits Converter
|
Unit Converters | Open | |
|
Bytes to Gibibytes Converter
|
Unit Converters | Open | |
|
Bytes to Gigabytes Converter
|
Unit Converters | Open | |
|
Bytes to Kibibytes Converter
|
Unit Converters | Open | |
|
Bytes to Kilobytes Converter
|
Unit Converters | Open | |
|
Bytes to Kilobytes Converter
|
Unit Converters | Open | |
|
Bytes to Mebibytes Converter
|
Unit Converters | Open | |
|
Bytes to Megabytes Converter
|
Unit Converters | Open | |
|
Bytes to Petabytes Converter
|
Unit Converters | Open | |
|
Bytes to Terabytes Converter
|
Unit Converters | Open | |
|
C-SSRS Helper
|
Health & Fitness | Open |
Showing 961–1,008 of 8,445 tools