Beautiful • Practical • Browser-only
Instantly de-minify React Native production JavaScript errors using your .map sourcemaps.
Try it live → deminifier.StaxTech.com (or your own subdomain)
React Native production errors (especially from Hermes or Metro) are painful — they show up as minified stacktraces with cryptic file names like index.bundle:415:10.
SourceMap Deminifier fixes that in seconds:
- Upload your production
.mapfile (generated byreact-native build) - Paste a line + column or the full stacktrace
- Get clean, original file paths, function names, and code snippets instantly
- 100% client-side — no data leaves your browser
Built on the exact same engine as the excellent source-map-lookup CLI, but with a gorgeous, practical React SPA UI.
- Single-position lookup with live debounced preview
- Full stacktrace de-minification (Hermes & Metro formats)
- Embedded source code snippets with line highlighting
- Copy-ready de-minified results
- Beautiful dark UI with glassmorphic cards, smooth animations, and code syntax styling
- Error handling & helpful toasts
- Mobile-friendly responsive design
- Zero server — works completely offline after loading the sourcemap
- FOSS forever — fork it, host it, improve it
(Add your actual screenshots here — I recommend 3: top bar with upload, side-by-side input/output, and a stacktrace example)
- Go to deminifier.StaxTech.com
- Drag & drop your production
.mapfile (fromandroid/app/build/outputsor iOS equivalent) - Paste a line + column from your error or the full stacktrace
- Watch the magic happen ✨
git clone https://github.com/StaxTech/react-native-sourcemap-deminifier.git
cd react-native-sourcemap-deminifier
npm install
npm run devOpen http://localhost:5173 — you're ready to hack!
- React 18 + TypeScript
- Vite (blazing fast)
- Tailwind CSS + custom dark theme
source-map(official Mozilla library with WASM)error-stack-parser- Fully client-side (no backend)
- Vercel / Netlify: Connect your repo — done
- Cloudflare Pages: Drag & drop the
distfolder - Custom subdomain:
deminifier.gidraphdanford.dev(highly recommended)
See the Deployment Guide for production tips.
We ❤️ contributors! This project is fully open-source and designed to be easy to extend.
Please read our CONTRIBUTING.md before opening a PR.
Made with ❤️ for the React Native community
Built by StaxTech • Inspired by source-map-lookup
Star ⭐ this repo if it saved you debugging time!