Jenee

Regex Tester

Regular Expression Pattern

//gm

Test String

Match Result0 matches

Results will appear here...

How to Use

  1. STEP 1
    Enter a regular expression pattern and select flags.
  2. STEP 2
    Type or paste the text you want to test in the 'Test String' area.
  3. STEP 3
    Matches will be highlighted in real-time, and details will appear on the right.
  • This tool uses the JavaScript regular expression engine (native to your browser).
  • All processing happens client-side; no data is sent to any server.
  • Extremely long text or complex patterns may cause browser lag.

Tips

1

Remove the 'g' (Global) flag to match only the first occurrence.

2

Use the 'i' (Insensitive) flag to ignore case sensitivity.

3

Common patterns: `\d+` (digits), `[a-z]+` (lowercase letters), `^` (start of line), `$` (end of line).

FAQ

  • Q1

    Is this compatible with PCRE (PHP, etc.)?

    No, it relies on JavaScript regex syntax. Some advanced features (like recursive patterns) may not be supported.

  • Q2

    Is my data saved?

    No, all input data is processed locally in your browser and is never transmitted externally.

Feedback (Contact)