hexforge / tools / TOOL

LOCAL CTF TOOL

Regular Expression Tester

Put a regular expression on the first line and test text below it to inspect matches and positions.

INPUT ·
0 charsCtrl / Cmd + Enter
LOCAL ONLY
OUTPUT
0 charsWAITING

Inspect JavaScript regex matches

Regular expressions help locate structured values inside logs, challenge output, and long text. Up to 200 matches are displayed.

Privacy first

Input is processed in your current browser and is not uploaded.

Common questions

How does this tool work?

The operation runs in your browser.