Free Online Tool

Regex Tester

Test and debug regular expressions instantly. Match patterns, extract groups, and validate regex against sample text.

Regular Expression Pattern

Global (g)Ignore Case (i)Multiline (m)Dot All (s)

Test String

Matches

Related Tools

Explore More Tools

Discover other powerful tools to help you work smarter

HEIC to WebP Converter

Convert HEIC images from iPhone and modern cameras to WebP format instantly. Preserve image quality while significantly reducing file size. Perfect for web optimization, faster loading times, and better compatibility. Supports batch conversion, no file size limits, and completely free with no watermarks.

ConvertersTry Now

BMI Calculator

Calculate your Body Mass Index (BMI) and determine if you're underweight, normal weight, overweight, or obese. Get personalized health insights, ideal weight range, and recommendations. Track your fitness goals with accurate BMI calculations. Free tool for health monitoring and wellness planning.

Health ToolsTry Now

SMTP Testing Tool

Test and verify SMTP server configurations with our efficient email testing tool. Send test emails, check SMTP connectivity, and troubleshoot email delivery issues. Perfect for developers, system administrators, and IT professionals. Verify email settings, test authentication, and ensure reliable email delivery. Free and secure.

Online ToolsTry Now

Discount Calculator

Calculate discount percentage, final price, and savings instantly. Perfect for shoppers, retailers, and business owners to calculate discounts, markdowns, and sale prices. Free discount calculator tool with real-time calculations.

Financial ToolsTry Now

JSON to CSV Converter

Convert JSON data to CSV format instantly. Parse JSON arrays and objects, convert to CSV format, and download CSV files. Perfect for data export, spreadsheet import, and data analysis. Free JSON to CSV converter.

ConvertersTry Now

PNG to WebP Converter

Convert PNG images to modern WebP format instantly. Reduce file sizes by up to 30% while maintaining excellent image quality. Perfect for web optimization, faster loading times, and better SEO performance. Supports batch conversion, no file size limits, and 100% free.

ConvertersTry Now

View All Tools