The Only Regex Generator for Edge Engineers
Cloudflare RE2 Protection
Generic AI tools constantly output regex with lookaheads (?=...) and lookbehinds (?<=...). Cloudflare WAF strictly prohibits these to prevent Regex Denial of Service (ReDoS) attacks. Select Cloudflare in our dropdown, and the AI will strictly adhere to Google's RE2 safe constraints.
Regex Migration Engine
Migrating from Apache to NGINX, or NGINX to Cloudflare? Switch to the "Regex Translation" mode. Paste your old legacy regex, select your new platform, and our engine will rewrite the exact logic to conform to your new WAF's specific engine constraints safely.
Frequently Asked Questions
Why do I need the "Explain This Regex" feature?
Deploying a poorly written Regular Expression to a production WAF or CDN can accidentally block millions of legitimate users, or crash the edge server entirely. Our AI automatically generates a plain English breakdown of the pattern so you can audit the logic before pasting it into your configuration.
Does this tool generate Code Snippets?
Yes. Once a generic regex pattern is generated, a code export tab will appear. It instantly wraps your regex in perfectly escaped, production-ready code blocks for JavaScript (.test()), Python (re.search()), PHP (preg_match()), and Golang (regexp.Compile()).