sourcemap-explorer

Sourcemap Explorer is a learning tool for web developers and students. When a site ships JavaScript sourcemaps to production…

Sourcemap Explorer is a learning tool for web developers and students. When a site ships JavaScript sourcemaps to production (accidentally or on purpose), this extension detects them automatically and lets you reconstruct the original project from the minified bundles. Features: - Passive detection — the extension icon stays gray by default and turns green the moment any sourcemap is spotted on the current site. - Cumulative per-site cache — browse around and the list keeps growing; scope is grouped by registrable domain (eTLD+1), so subdomains and CDNs roll up together. - Clean virtual tree preview in the popup, deduplicated across bundles and with webpack synthetic modules filtered out — you see exactly what will be inside the zip. - One-click download of a single .zip with the reconstructed project tree (sources + sourcesContent), ready to open in any editor. Use it to study how real-world frontends are built, read the original TypeScript/JSX behind a minified bundle, or learn from production architectures. Privacy: all work happens locally in your browser. Sourcemaps are fetched from the origin and stored in chrome.storage.local. Nothing is sent anywhere else.