Regex Tester & Debugger

Test, validate, and debug regular expressions in real-time with visual match highlighting and capture group inspection.

Regular Expression Pattern

Test String

2 Matches Found

Visual Match Highlight

Match Details (2)

#1hello@techdastak.comat index 14

#2support@dastaktools.ioat index 38

How to use this tool

Step 1

Enter your regular expression in the pattern field and toggle flags (global, case-insensitive, multiline).

Step 2

Type or paste test content into the text area. Matches and capture groups update dynamically.

Step 3

Review highlighted match spans, match count, and indexed capture group details in the output table.

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