Regex Tester Advanced Pattern Testing & Validation
Test and validate regular expressions with live pattern matching, syntax highlighting, capture group analysis, and performance optimization. Features comprehensive pattern library and detailed explanations.
Regular Expression
g = global
i = ignore case
m = multiline
s = dotall
x = extended
Test String
Results
No matches yet
Enter a pattern and test string to see matches
Related Tools You Might Need
Markdown Formatter & Previewer - Online Editor with Live Preview
Professional Markdown formatter and live previewer with advanced editing features, syntax...
Developer Tools
JSON Stringify Text Generator – Convert Text to JSON String
Convert plain text to JSON string format with proper escaping and formatting. Professional...
Developer Tools
Favicon Downloader
Download favicons from websites with multiple formats including .ico, .png, .svg, and .gif. Enter a...
Developer Tools
HTML Tree Generator - Advanced DOM Parser & HTML Analyzer
Comprehensive HTML parser and analyzer that generates interactive DOM tree visualizations, performs...
Developer Tools
JavaScript Formatter - Beautify & Organise Your JS Code
Professional JavaScript code formatter and beautifier with syntax highlighting, minification,...
Developer Tools
JSON Formatter & Minifier – Beautify & Organise Your JSON Code
Professional JSON formatter, minifier, and validator tool. Beautify messy JSON, minify for...
Developer Tools