Introduction of Regular Expression Test Tool

This tool provides real-time regular expression validation and debugging support for a variety of programming languages syntax (such as JavaScript/Java , etc.). Through an intuitive interactive interface, developers can quickly test the regular rules, extract the target text content, and instantly view the matching results.

Core Features

• Real-time validation： Input regular expression and test text, instantly highlight the matching result.
• Multi-language Compatibility： Supports regular syntax differences in common programming languages.
• Common template library： Preset email, URL, number and other high-frequency regular rules.
• Data Extraction： Extract regular string fragments from complex text.
• Error Diagnosis： Automatically detect regular syntax errors and give suggestions for fixing them.

Applicable Scenarios

1. Form input validation (email/phone/ID format checking)
2. Log file analysis to extract key data
3. URL recognition and content crawling in web crawlers
4. Batch text replacement in code refactoring

Technical Features

Adoption Standardized regularity engine， Ensure that the matching rules are consistent with mainstream programming languages (Python/JS/Java, etc.). Optimized for milliseconds response time, supporting processing of 100,000 characters long text matches.

Tip: You can view the metacharacter lookup table via the"?" button to view the metacharacter lookup table, or use the Ctrl+Enter shortcut key to quickly test the match.