Show HN: Toolbit – A unified, privacy-friendly toolbox for developers

[alwinaugustin]

I built Toolbit — a fast, ad-free, privacy-respecting developer toolbox that runs entirely in your browser.

It brings together 20+ everyday utilities like: JSON Formatter & Validator Base64 Encoder / Decoder JWT Decoder Markdown Previewer HTML / CSS / JS Minifiers Word Counter, Diff Tool, and more

Everything runs completely on the client side, so no data ever leaves your machine. You can even install it as a PWA for offline access.

Toolbit was born from frustration with random online tools full of ads, trackers, and inconsistent UIs. I wanted a single, clean space that developers could trust and use quickly without losing focus.

Features: All-in-one workspace for common developer tasks 100% local execution (no server calls or telemetry) Light & dark themes Works on any browser and can be installed as a PWA

Try it here: https://toolbit.pages.dev

I’d love feedback on usability, performance, and what tools you think I should add next.

[thatgloomyguy]

Just tried this out — really nice execution. It loads instantly, feels lightweight, and everything runs locally (checked network tab — zero external calls

The dark theme looks great and the consistency across all tools is refreshing compared to the usual “one page per utility” sites.

Would love to see a couple more dev-focused tools added (maybe regex tester), but this is already super handy for quick JSON formatting and JWT decoding.

Also appreciate that it works offline — that’s a rare touch for something like this. Bookmarked.