AI Regex Toolkit

Generate from English, explain in English, test live, diagnose ReDoS, export to any language.

Gemini 3.1 Flash-LiteFree · no signup

/Pattern validSafe

2 matches · 0.2 ms

Test input

Reach us at hello@tooled.dev or sales@tooled.dev for a demo. Phone: +1 (555) 123-4567 — leave a message. Docs: https://tooled.dev/docs/regex Order #ABC-12345 ships 2026-05-22.

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hello@tooled.dev
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sales@tooled.dev

Pattern library

Recent patterns

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About this tool

The AI Regex Toolkit is the first product in the tooled.dev portfolio. It combines four things that, until now, lived in separate apps:

AI generation: describe the pattern in plain English, get a working regex with test cases and explanation in one round-trip.
AI explanation: paste any regex and get a token-by-token breakdown, including the tricky bits like greedy quantifiers and lookarounds.
Live testing: every keystroke is matched against your input with color-coded captures and a hard timeout that defeats catastrophic backtracking.
ReDoS diagnosis: we statically scan for the most common denial-of-service shapes and tell you how to fix them — the same class of bug that took Cloudflare down for 27 minutes in 2019.

Why we built it

The two leaders (regex101 and regexr) are unmaintained or under-resourced, mobile UX on every existing tool is poor, and none combine AI generation with strong testing in a single page. We aim to be the calmest, fastest, most accurate regex environment on the web — with a CLI and MCP server right behind it.