What dotool.app is
dotool.app is a growing collection of free online tools: unit converters, calculators, text tools, colour tools and image converters. Each one does a single job, opens instantly and gives a clear answer without sign-up, pop-ups or clutter.
How we build it
- Exact where it matters. Conversion factors follow published standards such as NIST and the SI brochure, and every converter shows its formula and a worked example.
- Private by design. The tools run in your browser. The text you type and the images you choose are processed on your device and are not uploaded to dotool.app.
- Free and fast. No account and no paywall. Analytics run only if you accept them. Pages are lightweight so they open quickly on a phone.
- Clear. Plain language, readable layouts and tools that work with the keyboard and screen readers.
Who is behind it
dotool.app is built and operated by Shortcut Studio Ltd., a small company based in Bulgaria. We add tools in small, careful steps and fix problems as people report them.
Get in touch
Found a mistake, missing a unit or have an idea for a tool? Write to info@dotool.app. See also our Privacy Policy and Terms of Use.