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 |
|---|---|---|---|
|
Farads to Picofarads Converter
|
Unit Converters | Open | |
|
Fatigue Life Calculator
|
Science Tools | Open | |
|
Fault Current Calculator
|
Engineering Tools | Open | |
|
Favicon From Image
|
Image Tools | Open | |
|
Favicon Generator
|
Image Tools | Open | |
|
FB2 to AZW3 Converter
|
Ebook Tools | Open | |
|
FB2 to EPUB Converter
|
Ebook Tools | Open | |
|
FB2 to MOBI Converter
|
Ebook Tools | Open | |
|
FB2 to PDF Converter
|
Ebook Tools | Open | |
|
FB2 to TXT Converter
|
Ebook Tools | Open | |
|
Febrile Seizure Risk
|
Health & Fitness | Open | |
|
February Birth Flower
|
Reference Tools | Open | |
|
February Birthstone
|
Reference Tools | Open | |
|
Fecal Elastase Interpretation Helper
|
Health & Fitness | Open | |
|
Feed Cost Per Gain Calculator
|
Agriculture Tools | Open | |
|
Feels Like Temperature Calculator
|
Weather Tools | Open | |
|
Feet per Second to Kilometers per Hour Converter
|
Unit Converters | Open | |
|
Feet per Second to Knots Converter
|
Unit Converters | Open | |
|
Feet per Second to Mach Converter
|
Unit Converters | Open | |
|
Feet per Second to Meters per Second Converter
|
Unit Converters | Open | |
|
Feet per Second to Miles per Hour Converter
|
Unit Converters | Open | |
|
Feet to Centimeters Converter
|
Unit Converters | Open | |
|
Feet to Furlongs Converter
|
Unit Converters | Open | |
|
Feet to Inches Converter
|
Unit Converters | Open | |
|
Feet to Inches Converter (ft to in, height)
|
Unit Converters | Open | |
|
Feet to Kilometers Converter
|
Unit Converters | Open | |
|
Feet to Light Years Converter
|
Unit Converters | Open | |
|
Feet to Meters Converter
|
Unit Converters | Open | |
|
Feet to Meters Converter (ft to m, free)
|
Unit Converters | Open | |
|
Feet to Micrometers Converter
|
Unit Converters | Open | |
|
Feet to Miles Converter
|
Unit Converters | Open | |
|
Feet to Millimeters Converter
|
Unit Converters | Open | |
|
Feet to Nanometers Converter
|
Unit Converters | Open | |
|
Feet to Nautical Miles Converter
|
Unit Converters | Open | |
|
Feet to Yards Converter
|
Unit Converters | Open | |
|
Feet to Yards Converter (ft to yd, free)
|
Unit Converters | Open | |
|
Feline Blood Volume
|
Veterinary Tools | Open | |
|
FENa Calculator
|
Health & Fitness | Open | |
|
Fence Calculator
|
Construction Tools | Open | |
|
Fermat's Little Theorem Calculator
|
Math Calculators | Open | |
|
Fermentation Salt Ratio
|
Food & Cooking | Open | |
|
Fermi Energy Calculator
|
Physics Tools | Open | |
|
Fermi-Dirac Distribution Calculator
|
Science Tools | Open | |
|
Fertilizer Calculator
|
Agriculture Tools | Open | |
|
Fertilizer Spread Calculator
|
Gardening Tools | Open | |
|
FEV1/FVC Ratio Calculator
|
Health & Fitness | Open | |
|
FFP Dose Calculator
|
Health & Fitness | Open | |
|
FFT Bin Resolution Calculator
|
Developer Tools | Open |
Showing 2,545–2,592 of 8,445 tools