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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
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| Tool | Category | Description | Action |
|---|---|---|---|
| Color Tools | Open | ||
| Space & Astronomy | Open | ||
| Space & Astronomy | 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 | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Unit Converters | Open | ||
| Color Tools | Open | ||
| Symbols & Unicode | Open | ||
| Statistics Tools | Open | ||
| Health & Fitness | Open | ||
| Agriculture Tools | Open | ||
| Construction Tools | Open | ||
| Math Calculators | Open | ||
| Chemistry Tools | Open | ||
| Chemistry Tools | Open | ||
| Text Tools | Open | ||
| Developer Tools | Open | ||
| Math Calculators | Open | ||
| Developer Tools | Open | ||
| Design Tools | Open | ||
| Math Calculators | Open | ||
| Accessibility Tools | Open | ||
| Text Tools | Open | ||
| Text Tools | Open | ||
| Text Tools | Open | ||
| Math Calculators | Open | ||
| Math Calculators | Open | ||
| Statistics Tools | Open | ||
| Math Calculators | Open | ||
| Physics Tools | Open | ||
| PDF Tools | Open | ||
| Biology Tools | Open | ||
| Engineering Tools | Open | ||
| Engineering Tools | Open | ||
| Image Tools | Open | ||
| Image Tools | Open | ||
| Crypto Tools | Open | ||
| Symbols & Unicode | Open | ||
| Unit Converters | Open |