All Free Tools
8,456 free online tools across 85 categories
No sign-up and nothing to install. Most tools process input in your browser; tools that need live data or another network service should explain it clearly. Convert files, format code, generate text, run calculations, and check SEO across PDF, image, developer, finance, and unit-conversion tools. Pick one and start.
8,456 tools
No sign-up
Free to use
| Tool | Category | Description | Action |
|---|---|---|---|
| Physics Tools | Open | ||
| Chemistry Tools | Open | ||
| Physics Tools | Open | ||
| Physics Tools | Open | ||
| Energy Tools | Open | ||
| Science Tools | Open | ||
| Physics Tools | Open | ||
| Physics Tools | Open | ||
| Physics Tools | Open | ||
| Engineering Tools | Open | ||
| Home & DIY | Open | ||
| Electrical Tools | Open | ||
| Food & Cooking | Open | ||
| Food & Cooking | Open | ||
| Date & Time | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Physics Tools | Open | ||
| Chemistry Tools | Open | ||
| Chemistry Tools | Open | ||
| Chemistry Tools | Open | ||
| Physics Tools | Open | ||
| Acoustics Tools | Open | ||
| Real Estate Tools | Open | ||
| Health & Fitness | Open | ||
| Health & Fitness | Open | ||
| Chemistry Tools | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Health & Fitness | Open | ||
| Health & Fitness | Open | ||
| Sports Tools | Open | ||
| Health & Fitness | Open |