rgx.tools is an online tool for developers that turns a plain-language description into a ready-to-use regular expression. Instead of manually assembling tokens and flags, you describe what you want to find or validate in a string.
Generate regex from text
Type a request in natural language—for example, “find all phone numbers” or “validate an email.” The tool (based on GPT-3.5 Turbo) generates a matching regular expression and shows the result. This can lower the learning curve for regex and save time for experienced developers.
Language-specific output
The generator is designed for use across common programming environments, so you can see how the expression should look in your target language:
- JavaScript
- Python
- Java
- C#
- Ruby
- PHP
- Go
- Rust
- Kotlin
- Swift
- SED
Examples and editing
rgx.tools includes built-in examples and templates you can reuse or learn from:
- URLs with http/https
- Dates in MM/DD/YYYY format
- Phone numbers
- Password validation
- Hex color codes
You can also edit the generated regex manually before using it in your project.
