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 |
|---|---|---|---|
|
Lanthanum Oxidation States
|
Chemistry Tools | Open | |
|
Lap Time Calculator
|
Sports Tools | Open | |
|
Laplace Transform & Control System Helper
|
Engineering Tools | Open | |
|
Laplace Transform Calculator
|
Math Calculators | Open | |
|
Larmor Radius Calculator
|
Physics Tools | Open | |
|
Laser Cut Time Estimator
|
Home & DIY | Open | |
|
Laser Spot Size Calculator
|
Science Tools | Open | |
|
Last Name Generator
|
Generators | Open | |
|
Latent Heat Calculator
|
Science Tools | Open | |
|
Latitude/Longitude Marine Coordinate Converter
|
Marine Tools | Open | |
|
Latitude/Longitude to UTM Converter
|
Space & Astronomy | Open | |
|
Lattice Energy Calculator
|
Chemistry Tools | Open | |
|
Law Of Large Numbers Demo
|
Math Calculators | Open | |
|
Lawn Fertilizer Schedule
|
Gardening Tools | Open | |
|
Lawn Mowing Time Calculator
|
Home & DIY | Open | |
|
Lawton IADL Score
|
Health & Fitness | Open | |
|
Layer Height Calculator
|
Electrical Tools | Open | |
|
Layover Calculator
|
Travel Tools | Open | |
|
Lazy Load Savings Calculator
|
Dev Utilities | Open | |
|
lb/ft3 to g/cm3 Converter
|
Unit Converters | Open | |
|
lb/ft3 to g/mL Converter
|
Unit Converters | Open | |
|
lb/ft3 to kg/m3 Converter
|
Unit Converters | Open | |
|
LC Resonant Frequency Calculator
|
Physics Tools | Open | |
|
LCM and GCD Calculator
|
Number Tools | Open | |
|
LCM Calculator
|
Math Calculators | Open | |
|
LCP Budget Calculator
|
Developer Tools | Open | |
|
LDL Cholesterol Calculator
|
Health & Fitness | Open | |
|
LDL Cholesterol Calculator (Friedewald)
|
Health & Fitness | Open | |
|
Le Chatelier Predictor
|
Chemistry Tools | Open | |
|
Lead Angle Weight Calculator
|
Engineering Tools | Open | |
|
Lead Beam Weight Calculator
|
Engineering Tools | Open | |
|
Lead Channel Weight Calculator
|
Engineering Tools | Open | |
|
Lead Electron Configuration
|
Chemistry Tools | Open | |
|
Lead Element Properties
|
Chemistry Tools | Open | |
|
Lead Flat Bar Weight Calculator
|
Engineering Tools | Open | |
|
Lead Hexagon Bar Weight Calculator
|
Engineering Tools | Open | |
|
Lead Oxidation States
|
Chemistry Tools | Open | |
|
Lead Pipe Weight Calculator
|
Engineering Tools | Open | |
|
Lead Plate Weight Calculator
|
Engineering Tools | Open | |
|
Lead Round Bar Weight Calculator
|
Engineering Tools | Open | |
|
Lead Round Tube Weight Calculator
|
Engineering Tools | Open | |
|
Lead Score Calculator
|
Marketing Tools | Open | |
|
Lead Sheet Weight Calculator
|
Engineering Tools | Open | |
|
Lead Square Bar Weight Calculator
|
Engineering Tools | Open | |
|
Lead Square Tube Weight Calculator
|
Engineering Tools | Open | |
|
Lead Time Calculator (Project Management)
|
Productivity | Open | |
|
Lead Tube Weight Calculator
|
Engineering Tools | Open | |
|
League KDA Calculator
|
Sports Tools | Open |
Showing 4,129–4,176 of 8,451 tools