[5] Crimson Editor features Windows shell integration, tabbed document interface, syntax highlighting, multiple undo/redo, column mode editing, bracket matching, auto-indentation, spell checking, direct editing of text files in FTP and the integration with compilers.

[8] Crimson Editor has been extensively reviewed and well received.

[9][10][11] It has been described as a very good editor and pseudo-IDE interface for programmers to use.

[4] It has been highlighted that it has a good set of features, syntax-highlighting for many formats, and includes integrated FTP.

However, there are some memory issues with several (full-project) files, and it sometimes crashes.