Code · Regex

AI regex generator — describe it, get the pattern

Describe what you want to match and Muse writes the regular expression — with an explanation of every part and examples that match and don’t. Or paste a regex to have it explained.

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Example

Patterns you can trust

Regex mode explains each token and gives matching and non-matching examples, so you can verify the pattern before you use it.

Build from a plain-English description
Explain an existing regex token by token
Flavor notes for JavaScript, Python, PCRE
Test cases that match and don’t

Muse · Code · Regex

Match US ZIP codes: 5 digits, optional -4 digits.

^\d{5}(?:-\d{4})?$

^\d{5} five digits at the start · (?:-\d{4})? optional dash + four digits · $ end. ✅ 94103, 94103-1234 · ❌ 9410, 94103-12

How to use it

Regex in three steps

Switch to Code

Open Muse and tap Code in the mode switcher.

Pick “Regex”

Choose the task and, optionally, the language.

Paste and send

Paste your code or describe what you need — then ask follow-ups.

Try these prompts

Things to ask

Regex for a strong passwordExtract all hashtags from textExplain this regex token by tokenMatch ISO dates like 2026-10-27

FAQ

Regex: common questions

Which regex flavor does Muse use?

Tell Muse your language or engine (JavaScript, Python, PCRE, Go…) and it will use the right syntax and mention differences.

Can Muse explain a regex I found?

Yes. Paste it and ask for an explanation — each part is broken down in plain words.

Is it good for validation?

Yes, with care: for things like emails and URLs, Muse will suggest a practical pattern and mention its limits.

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