How to open .CHM files on Mac
To open .CHM files on Mac, control-click the .chm file and choose open with..
Step-by-step instructions
- Control-click the .CHM file and choose Open With.
- Pick a compatible Mac application to open the file.
Recommended software
- VS Code
- Notepad++/TextEdit
- jq (CLI)
Alternative methods
- Open .CHM in a browser-based viewer if desktop apps fail.
- Try opening .CHM on Mac with a secondary app to rule out app-specific issues.
- Convert .CHM only with trusted tools when direct opening is not possible.
Common issues
.CHM file does not open
This usually means the required app is missing or the .CHM file is incomplete.
- Install or update a compatible application.
- Verify the file came from a trusted source and was fully downloaded.
- Try opening the file in an alternative app on another platform.
Security note
Only open .CHM files from trusted senders.