# Apple OS/X Hex Editor

If you need a hex editor in OS/X to see exactly what is in a file, download this free one.

- [http://ridiculousfish.com/hexfiend/](http://ridiculousfish.com/hexfiend/)

Two other Unix commands for working with binary data are **dd** and **od**. You can read about them from their man pages:

- <a>man dd</a>
- <a>man od</a>

Taken from email by Jose Hales-Garcia to [OS/X Forum List](http://lists.stat.ucla.edu/mailman/listinfo/osxforum)