Regex Tester
AI PoweredTest Regular Expressions Online Free – Real-time Match Highlighting
Test regex patterns with real-time highlighting. Match + Replace modes. Quick patterns for email, URL, phone, IP. No signup.
2 Matches Found
support@quicktoolify.comidx: 14sales@company.orgidx: 42100% Private
All processing in browser
Match + Replace
Both modes supported
Real-time Highlight
Matches highlighted instantly
Regex Tester – Test Regular Expressions Online Free
QuickToolify's free regex tester lets you test regular expressions with real-time match highlighting. Write your pattern, paste test text, and see all matches highlighted instantly. Supports match count, replace mode, and 6 ready-to-use quick patterns for email, URL, phone, IPv4, dates and hex colors.
Common Regex Patterns You Can Test
Test email address regex patterns to validate user input in forms and APIs.
Match HTTP and HTTPS URLs from text content, log files or user input.
Validate US/international phone number formats in contact forms.
Match IPv4 addresses in server logs, config files or network data.
Parse MM/DD/YYYY, YYYY-MM-DD and other date formats from text.
Extract hex color codes like #FF5733 from CSS or design files.
How to Test Regex in 3 Steps
Free regex tester – real-time resultsEnter Your Pattern
Type your regex pattern and flags, or click a quick pattern like Email, URL, Phone.
Paste Test String
Enter the text to test. Matches are highlighted in yellow in real-time as you type.
View Results
See match count and all matched values. Switch to Replace mode to test substitutions.
Why Use QuickToolify Regex Tester?
Fast results
See the benefits immediately with a clean, easy-to-use section.
Trusted experience
Built for free tools with privacy-first browser-based processing.
Optimized for all users
Designed for good performance, accessibility, and mobile screens.
Instant downloads
Get your work in seconds with no signup or waiting.
Frequently Asked Questions – Regex Tester
Everything about testing regular expressions
Your Privacy, Our Priority
We don't store any of your data or files. All files are instantly deleted after your use completes.