Bitdrill
Sight-reading drills for hex and binary: random questions, adaptive repetition, and timing from the very first digit — train like a musician, but for bits.
Musicians have sight-reading drills. Bitdrill asks: why shouldn't programmers? It's a trainer for reading hexadecimal and binary at sight — not converting them with a calculator, but actually recognizing 0x3F the way a pianist recognizes a chord. The homepage makes the philosophy explicit: "SIGHT READING, NOT CONVERSION." The training is structured like music practice for a reason. You pick a drill — Hex → Binary, Binary → Hex, nibbles or full bytes — and the app throws random questions at you with adaptive repetition: the digits you fumble come back more often, the ones you've nailed fade into the background. Timing starts from the very first digit, because fluency is the whole point. A Progress tab tracks how your speed and accuracy evolve over sessions. Technically it's almost aggressively simple: no build step, no dependencies, no npm install — just static files on GitHub Pages. That minimalism is the point; there's nothing between you and the drill. And it's 100% vibe-coded, which feels appropriate for a tool whose entire job is building intuition through repetition rather than through theory. If you've ever stared at a hex dump and wished the numbers would just resolve into meaning the way words do on a page, this is the practice room. Note: This project is curated by the VibeFix editors from public sources. All rights belong to the original creator. --- ---
