Regex101
Development Development Tools Testing Productivity
Online regular expression tester and debugger supporting multiple flavors with instant explanations, sharing and saving.
Detailed Description
Features
Multi-flavor Support
- Supports PCRE, JavaScript, Python, Golang and more regex flavors
- Real-time syntax highlighting and error prompts
- Detailed display of groups and captured results
Instant Explanation
- Semantic parsing with step-by-step explanations
- Match results update dynamically
- Provides precise character position info
Share & Save
- Generate shareable links
- Built-in examples and templates
- Export / import regular expressions