Cross-Language Regex Builder
Type a sentence and choose what you want to match. You can select one or multiple words to build a regex that works in JavaScript, Python, and Go (RE2-compatible; no lookarounds or backreferences).
Click one or more words from your sentence to include them in the regex:
What do you want to match?
You can either select words above, type a phrase here, or combine both. Special regex characters in your text will be escaped automatically.
Generated Regex (JS / Python / Go)
Copy this pattern and apply language-specific flags (like i for case-insensitive) as needed.
— No regex yet. Choose options above.
Enter a word/phrase or select one or more words from the sentence.
Usage example
JavaScript example using RegExp:
const pattern = /your-regex/g; const matches = text.match(pattern);
Note: This tool avoids advanced features like lookbehind or backreferences so the same regex works in JS, Python, and Go's RE2 engine.