evanw/node-source-map-support

Health v2 · maintenance only

Adoption not part of the score

2195 stars · 221 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Node.js library that adds source map support to stack traces using the V8 stack trace API, remapping compiled file paths and line numbers back to their original sources. It works with any compile-to-JS language and also supports browsers via bundlers like Browserify.

Use cases

• show original file paths and line numbers in stack traces for transpiled code
• debug TypeScript or Babel-compiled JavaScript running in Node
• get correct stack traces when using the vm module
• fix Error.prototype.stack source maps in Chrome
• readable stack traces for Mocha test runs

When to choose

• you're on Node < 12.12.0 without the --enable-source-maps flag
• you use vm.runInThisContext where --enable-source-maps doesn't work
• you need source-mapped stack traces in the browser outside DevTools

When to avoid

• you're on Node >= 12.12.0 and can just use --enable-source-maps
• you use babel-register, which already includes it

Facets

library · maturity maintenance

developer-tools logging error-handling developer-tools web-development programming-languages browser cli source-maps stack-traces debugging v8 transpilers nodejs

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