Generate a regex from a plain description
Describe what you want to match in plain words and get a correct regular expression — explained piece by piece, with test examples.
Regex is write-once, read-never: it takes ten minutes to get right and a headache to revisit. Most developers reach for Stack Overflow, paste something close, and tweak it until the test cases pass without fully understanding why.
This tool flips that. Describe the pattern in plain language — "a US phone number with optional country code" — and it returns a correct regex with each part explained and example strings it matches and rejects. You ship a pattern you understand, not a copied incantation.
The tool for this
⁂Regex Generator
Describe what to match and get a correct regex, explained, with examples.
Frequently asked questions
How do I write a regex without learning the syntax? +
Describe what to match in plain words; the tool produces the regex and explains each part, so you can use and adjust it confidently.
Does it give test examples? +
Yes. It includes strings that should match and should not, so you can verify the pattern behaves as intended.
Which regex flavor does it target? +
Tell it your environment (JavaScript, Python, PCRE, etc.) and it produces a pattern for that flavor.
Related tools
🗄️Text to SQL
Turn plain English into correct SQL for Postgres, MySQL, SQLite, BigQuery or Snowflake — schema-aware.
🧩Legacy Code Explainer
Paste unfamiliar code and get a plain-English walkthrough, data flow and risks.
🧮Excel Formula
Describe what you need and get the exact Excel / Google Sheets formula — with a plain-language explanation.
Browse the full tools directory, or see all Panshi services.