About Momo Tools
Momo Tools is a growing collection of 229+ free online tools — calculators, converters, generators and developer utilities — designed to be fast, clean and private.
The little red panda in the corner is Momo, our mascot. Red pandas do a lot with small paws — just like these tools: tiny, quick, and surprisingly capable.
Our principles
- Private by design. Tools run in your browser. Your files and text never leave your device.
- Free and no signup. Every tool is free to use, with no account required.
- Fast and lightweight. No bloat, no pop-ups, instant results.
Who runs Momo Tools
Momo Tools is built and maintained by a small independent team — "Momo Tools Editorial & Engineering" — with AI-assisted development and translation. We are not doctors, accountants or financial advisors, and nothing on this site is professional advice: calculators that touch health or money are for estimation only, and we publish the formulas and sources they use so you can verify the math yourself.
Every tool is covered by an automated correctness test suite that must pass in full before each release. Spotted something wrong anyway? Email us and we'll fix it fast.
How it's funded
Momo Tools is free to use. To keep it running, some pages include relevant recommendations and affiliate links. If you find them useful and make a purchase, we may earn a small commission — at no extra cost to you. See our Privacy Policy for details.
Contact
Feedback, a tool request, a correction, or found a bug? We'd love to hear from you: [email protected].