sourcemap-converter

Reads and analyzes Base64 VLQ coded source mappings

This project was created for an article in c't Magazin.

JavaScript and basic styling are included in the HTML. Just enter Base64 VLQ code from any sourcemap. The converter will discard anything which is not Base64 - [A-Za-z0-9+/] - , comma, or semicolon. Typically, mappings look lik that:

aAAA,GAAM,OAAQ,QAAR,MAAQ,aAAQ,SAAQ,GAAR,CAAY,UAAY,IAAxB,CAAR,CAAd

Or like that:

AAIA,E,CAJA,C,CACC,eAQA,yB,CALD,E,CACC,kBASA,O,CAKD,I,CAIC,cACA,eACA,W

Or like that:

CAAC,WACA,IAAK,IAAIA,EAAU,EAAGA,EAAU,EAAGA,IAClCC,QAAQC,IAAIF

sourcemap-converter tries to make sense of that, according to Sourcemaps spec v3.