Immutable DevTools

Chrome DevTools custom formatter for Immutable.js collections (List, Map, Set, Stack, Record). Version 0.1.5, no recent releases since 2016. Transforms opaque internal structures into readable listings in the Console and Scope panel. Must be explicitly installed in browser environments; works only with Chrome v47+ and requires enabling custom formatters in DevTools settings. Intended for development-only use. Provides a Chrome extension alternative. Covers common immutable types but not Seq, Range, or Repeat.