Introduction to Regular Expression Test Tool
Functionality Overview This tool provides a one-stop regular expression solution that supports the following core features Real-time checking: Input regular rules and test text, instantly highlighting the matching results. Text Extraction: Extract regular strings from complex content (e.g. web addresses, email addresses). Formatting Output: Automatically beautify regular expressions to improve readability. Reference Library Integration: Built-in 20+ commonly used regular templates (numbers, URLs, Chinese, etc.) Usage
1. Input regular expression: Fill in the input box or select from the template library 2. Add test text: Paste the content to be matched (supports multi-line text) 3. View Result: Matching items will be highlighted and extracted data can be copied with one click. Applicable Scenarios
- Data cleansing: quickly filter IP addresses or error codes in log files - Form validation: test the validity of input rules such as email, phone number, etc. - Crawler development: extract specific structural data from web pages - Document processing: batch find/replace complex text patterns Technical Advantages ✔ Based on JavaScript engine, compatible with PCRE standard syntax ✔ Support multi-line mode, global matching and other advanced parameters ✔ Responsive design, adaptable to mobile phone/computer operation ✔ No need to register, free to use permanently
Tip: You can switch between "Basic Mode" and "Expert Mode" through the top navigation, and Expert Mode provides advanced functions such as replacement function and group backtracking.