iChm for Cocoa CHM Reader for Mac OS X


  • Fully built with Cocoa. No ugly window and slow rendering.
  • Tab browsing
  • Search. Result sorted by relevance.
  • Text encoding detecting/switching
  • Find in the page
  • Tag powered bookmark
  • Index
  • Back/Forward
  • Text zoom
  • Export to PDF
  • Continuous reading with Page down/Page up


Current stable version is iChm 1.4. Requires Mac OS X 10.5 or above.

Thank Ulrich S. Kapp for German localization, Roberto Auro Zapico for Spanish localization, John Th507 for Tranditional Chinese localization and Jeroen Leenarts for Dutch.


Send bug reports, suggestion at iCHM Issue Tracker.

Source Code

iCHM is open-sourced under MIT license. Check the project page at code.google.com for the source code.


iChm is a freeware. If you like iChm, please consider donating. Donations are greatly appreciated!