About huu.app
33 tools that run in your browser, because most of them never needed a server
Why This Exists
Formatting a JSON file, decoding a token, resizing an image, checking a bank number: these are small jobs, and the usual way to do them online is to hand your file to a stranger's server and hope. That trade was never necessary. A browser can do all of this itself, and huu.app is the collection of tools that do.
So there is no upload, no account, no queue and no rate limit, and the tools stay fast because the work happens where your data already is. Once a page has loaded it keeps working with the network switched off, which is the clearest proof that nothing was being sent anywhere.
It began as a handful of utilities the author was tired of looking up, and grew every time another one was needed. It is still growing that way.
Nothing Is Uploaded
Every tool works on your device. There is no server of ours to receive what you type, paste or open, which is a stronger promise than one to delete it later. The Privacy Policy names the handful of addresses your browser is asked to reach, and none of them carry your input.
Works Offline
The site keeps a copy of itself in your browser, so the tools you have visited still open on a plane, on bad hotel wifi, or with the cable pulled out. Install it to the home screen and it behaves like an app that happens to have no servers behind it.
Free, and Free of Everything Else
No account, no sign-up wall, no usage limit, no paid tier holding the useful half hostage. No ads, no trackers, no analytics, and no cookie banner, because there are no cookies to ask you about.
A Shell and a Code Editor
The site has a working command line and a code editor sharing one set of files, with pipes, variables, functions and both JavaScript and Python. They run in the tab, and the files stay in your browser. Press the terminal button in the header to open one anywhere on the site.
Built With
A static site, compiled ahead of time and served as files. The interesting parts are at the end of this list: Pyodide is CPython compiled to WebAssembly, which is what lets the shell run real Python in a tab.