Working with and debugging ANSI control codes and escape sequences can be a challenge.

This free web-based tool helps to inspect the input, visualize colors and styling, and list control codes. By using a proper tokenizer and parser (not just regex hacks), it supports all sorts of control codes. The parser is open source and available too (find links in "about").

Type or paste text in the black text area, or try out the examples. Use the lookup table to filter & find specific codes.

Feedback welcome, I’d love to know what’s confusing, missing, or especially useful.