RegExr
RegExr is a tool for creating, testing and debugging regular expressions. It allows you to easily test regex patterns against text inputs in a visual interface, and offers features like syntax highlighting, explanations, cheat sheets and more.
regex
regular-expressions
pattern-matching
text-processing
developer-tool
RegExr: Create, Test & Debug Regular Expressions
A tool for creating, testing and debugging regular expressions with a visual interface, syntax highlighting, explanations, cheat sheets and more.
What is RegExr?
RegExr is a feature-rich regular expression editor and tester. It allows you to quickly create, test and debug regex patterns through an intuitive graphical interface.
Some key features of RegExr include:
- Interactive regular expression tester - Type or paste text to instantly see if your regex matches, with all matches highlighted.
- Live editing - The test area updates in real-time as you edit your pattern.
- Explanation of syntax - Hover over parts of your regex to see descriptions explaining what that part does.
- Bookmarks - Save and easily access commonly used expressions.
- Pattern history - Easily return to recently used expressions.
- Share expressions via permalinks - Each expression gets a unique URL to allow sharing.
- Syntax highlighting - Clearly see different components of your regex.
- Cheatsheets and references - Quick access to regex syntax guides and shorthand character classes.
RegExr runs entirely client-side in the browser and works across all major browsers and platforms. Its clean interface and powerful live testing capabilities make it an indispensable tool for both learning and applying regular expressions.
RegExr Features
Features
- Visual regex testing interface
- Syntax highlighting
- Regex explanations
- Cheat sheets
- Named capture groups
- Regex library
- Find and replace
- Multi-line editing
- Project saving
Pricing
- Free
Pros
Intuitive visual interface
Helpful for regex learning
Feature-rich editor
Cross-platform support
Cons
No advanced regex features
Limited to testing regexes
No integration with code editors
Official Links
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