Pe, short for Programmer's Editor, is an open source text editor for the Be Operating System (BeOS), Haiku[1] and other BeOS-like operating systems, targeted towards source-code editing.

[2] It is conceptually based on the Macintosh Programmer's Workshop and BBEdit, both of which are editing programs for the Mac OS.

[4] Pe was written by the Dutch programmer Maarten Hekkelman, who also wrote BDB, the source-level debugger for the BeOS, and the spreadsheet Sum-It!, first for classic Mac OS and later BeOS where it was packaged by Beatware as half of BeBasics.

[7] Hekkelman also ported Pe to Macintosh under the name Pepper, until he ended development in 2002.

[3] Pe was used to write the BeOS Bible, as well as In the Beginning... Was the Command Line by Neal Stephenson, both of which mention it.