Stack trace deminifier
Paste a minified stack trace and a source map. Get a readable stack with original file paths, line numbers, and source context.
When a JS error is captured in production, the stack trace points at a minified bundle — file names like main-abc123.js and line 1, column 48201. This tool reverses that: paste the minified stack trace and the matching source map (.map file or pasted JSON), and it resolves each frame back to your original file, line, and function name, with the surrounding source code if the map embeds sourcesContent.
The deminifier works for any source-mapped JS bundle — Webpack, Vite, esbuild, Rollup, Next.js, or anything else that emits standard v3 source maps.
Runs entirely in your browser. Source maps and stack traces never leave this page.
GlitchReplay does this on every event you capture. Sentry-SDK compatible, flat-rate pricing, session replay included — built on Cloudflare so a bad deploy will never blow up your bill.