🔣 Describe it in English. Get the regex.
Plain-English to regex with a line-by-line breakdown — plus a live in-browser tester that proves the pattern works on your text.
✓ Free forever✓ No signup✓ AI brain + local proof
⚡ Live Pattern Tester — proof, not promises
The generated pattern is auto-loaded below. Run it against your own text, right here in your browser.
AI-generated — always review before shipping to production. Your input is sent to the AI service only to generate the answer. The 85 classic utilities on this site run 100% in your browser.
How it works
- Describe the pattern: Write in plain English what the regex should match — for example, email addresses or dates in a specific format.
- Pick the flavor: Select your regex flavor so the syntax matches your engine (JavaScript, Python, PCRE, and others).
- Forge and test: The instrument returns the pattern plus an explanation, and the built-in tester lets you verify it against sample text.
Good to know
- Always test generated patterns against both matching and non-matching examples — regex edge cases are where bugs hide.
- For complex validation (like full email RFC compliance), prefer a dedicated parser over a single regex.