Unlike other heavy web utilities that force you to sign up or track your data, Lihayo Tools offers 20+ pure HTML tools (BMI calculator, color pickers, password generators) that run 100% locally in your browser. No signup, no server uploads, and completely free. Built with AI and Cloudflare for lightning-fast speed.

Hey Product Hunt! 👋 I'm a solo indie dev from China.

I built Lihayo Tools because I got tired of a ridiculous reality: to just check my BMI or generate a quick password, I had to create an account, verify my email, and get bombarded with 5 pop-up ads. Why does a one-line math equation need my personal data? 🤦‍♂️

So, I went full "vanilla". I built 20+ free tools (BMI, dog age, password generator, etc.) using pure HTML and JS.

🚀 No signup. No servers. No tracking.

🛡️ Everything runs 100% locally in your browser. Your data never leaves your device.

It's not a fancy 3D AI model. It's just simple tools that respect your time and privacy. I'll be here all day reading every single reply. Tell me what you think, or what tool you want next! 🙏

Hey Product Hunt community!

I'm a solo indie dev. I got tired of simple web tools forcing me to sign up, verify my email, and tracking my data just to check a BMI or generate a password.

So I built Lihayo Tools: 20+ free utilities that run 100% locally in your browser. No servers, no tracking, no signup.

I'm officially launching on Product Hunt this Tuesday (Oct 27). I'd love to hear your thoughts: what is the one online tool you wish existed that didn't require a signup?