Regex Tester
Test regular expressions against sample text. See matches in real-time, validate patterns, and debug regex issues.
Inputs
Results
Pattern Status
Enter a pattern
Matches Found
0
Matches
Error Message
Pattern Status
Enter a pattern
Matches Found
0
How to Use This Calculator
- Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
- Regular Expression Pattern — Enter your regex pattern (e.g., /\d+/g)
- Test String — Enter the text to test against
- Regex Flags — Select regex flags Choose from: Global (g), Case Insensitive (i), Multiline (m), Global + Case Insensitive (gi), Global + Multiline (gm), All Flags (gim).
- Once all inputs are set, review your results in the Results panel. Here's what each output means:
- Pattern Status — your calculated result. This is the primary result of this calculator.
- Matches Found — shown as a numeric value. This is the primary result of this calculator.
- Matches — your calculated result.
- Error Message — your calculated result.
- Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
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