Regex Tester

Test regular expressions against sample text. Highlight matches with g, i, m flags.

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How it works

  1. 1Enter your regular expression in the regex field (e.g., \d+ for numbers).
  2. 2Paste or type test text in the test text area.
  3. 3Select flags: g (global), i (case-insensitive), m (multiline).
  4. 4Matches are highlighted and listed with positions.

Example

Input: Regex \d+, Text 'Price: 99 and 150'
Output: Matches '99' at position 7, '150' at position 16