About
Small tools for Android development. Every one of them runs in your browser — nothing you paste leaves your machine.
My Mini Laboratorium.
Why this exists
Most of what I build never leaves my laptop. This is where the parts that can live on the web actually live — small tools that do one thing, run entirely in your browser, and ask nothing of you: no account, no cookie banner, no upload.
It's also a constraint I enjoy. A static site with no server can't leak your data, because there's nowhere to leak it to. The note below isn't a policy, it's a property of how the thing is built — and the build fails if any tool ever acquires a network call.
How it's made
Astro, compiled to plain HTML and CSS, hosted on Cloudflare Pages. No database, no backend, no runtime. Every tool is a folder of real code with a manifest, discovered automatically at build time — adding one means writing the code and pushing.
The logic in each developer tool is a pure function with unit tests, kept separate from the interface that renders it. A wrong value in a density table or a signed-integer colour conversion is caught before it reaches anyone.
Get in touch
Email is best — septianrinaldi98@gmail.com. Happy to talk about Android, Compose, build times, or why your Gradle daemon is holding 2 GB.