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Regex Reference
View a reference sheet of common regex patterns and syntax basics — the same static content as the Regex Generator tool.
How to Use Regex Reference
- 1Click Process to view the reference sheet
- 2Copy the pattern or syntax you need
- 3Test it against real text using the Regex Tester tool
Frequently Asked Questions
Yes — both share the identical static reference content; they're two names for the same reference sheet.
No — it's read-only reference content. Use the Regex Tester or Regex Debugger tool to test a pattern against real text.
Character classes (\d, \w, \s, .), quantifiers (*, +, ?, {n,m}), anchors (^, $, \b), and grouping syntax (capturing, non-capturing, named).
Yes — copy any of the ready-made patterns (email, URL, phone, date, IPv4, hex color) directly into your code or into the Regex Tester.
Related Tools
Regex Tester
Test a regex pattern against sample text and see every match, using the real JavaScript regex engine.
Regex Debugger
Test a regex against sample text and see each match with its index position and any named/numbered capture groups.
Regex Replace
Run a real find-and-replace on text using a regex pattern and replacement string.
Regex Split
Split text into parts using a regex pattern as the delimiter, and see each resulting piece.