RegexPal
RegexPal is a free regular expression tester and visualizer. It allows you to easily test regex patterns, analyze them and understand how they work. Useful for learning and debugging regular expressions.
regex
regular-expressions
testing
visualization
debugger
RegexPal: Free Regular Expression Tester & Visualizer
Test, analyze and visualize regex patterns with RegexPal, a free tool for learning and debugging regular expressions.
What is RegexPal?
RegexPal is a free web-based application for testing, analyzing and visualizing regular expressions. It provides an intuitive graphical interface that allows users to easily enter a regex pattern on one side and sample text to test it against on the other.
As you type the regex, RegexPal dynamically highlights matching parts of the test string in different colors, allowing you to visualize how the expression works. It also displays detailed info like capture groups at each step. This makes it much easier to build, test and troubleshoot even complex regexes.
RegexPal has handy features for regex learning like reference sheets, regex syntax highlighting, bookmarking, shareable permalinks and search. The analysis view provides detailed step-by-step explanation of how the regex matches the input text. These make RegexPal a great tool for both learning and debugging regular expressions.
It runs fully client-side inside the browser, requires no account signup and all data stays local. RegexPal supports JavaScript, Python, PHP and Perl regex dialects. The tool is completely free to use with no ads or rate-limits.
RegexPal Features
Features
- Visual regex tester
- Highlight matches in test strings
- Explain and visualize regex
- Library of common regexes
- Save expressions for later use
- Multi-line testing
- Test across multiple strings
- Share expressions via URL
Pricing
- Free
- Open Source
Pros
Free and open source
Intuitive visual interface
Great for learning regex
Helpful explanations of regex
Cross-platform support
Cons
Limited features compared to paid tools
No advanced regex features
No regex builder
No code generation
Official Links
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