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Extract emails, URLs, phone numbers, or any pattern using regular expressions. Test and build your regex live.
Don't know regex? Use our built in patterns to extract emails, URLs, phone numbers, dates, IP addresses, and more. One click to apply a pattern and start extracting instantly.
Matches are highlighted in real time as you type your pattern. See exactly what your regex captures without clicking any buttons. Instant feedback helps you learn and refine patterns.
View all matches in a clean table format. Named and numbered capture groups are separated into columns for easy copying and analysis. Export everything as CSV with one click.
Test your replacement patterns live. Use $1, $2, or named references like $<name> to see the final result before applying changes to your real data.
Your data never leaves your device. All processing happens in your browser, no uploads, no servers, no cloud storage. Perfect for confidential business data or personal information.
Get ready to use code in JavaScript, Python, Java, C#, or PHP. Copy the snippet and paste it directly into your project. No need to manually escape or format the pattern.
Have a list of contacts mixed with other text? Use the Email pattern to extract just the email addresses. Copy them all as a clean list with one click.
Copy text from a webpage and extract all links using the URL pattern. Great for collecting references, building link lists, or analyzing content.
Searching through documents for contact info? The Phone pattern finds various formats like (123) 456-7890, 123-456-7890, or 123.456.7890.
Log files often have dates in ISO format (2026-01-15). Use the Date pattern to extract them. The tool even breaks down year, month, and day into separate columns.
Building a regex for your app? Test it here first with sample data, verify it works, then copy the code snippet directly into your JavaScript, Python, or other project.
New to regular expressions? Type any pattern and see a plain English explanation of what each part does. A great way to learn or debug complex patterns.
Our tool gives you powerful options to build, test, and export regular expressions. Here's how each feature helps you work with patterns.
Toggle Global (g), Case Insensitive (i), Multiline (m), and Dotall (s) flags with a click. Each flag has a tooltip explaining what it does so you always know how it affects your results.
Switch to the "Explanation" tab to see your regex broken down token by token. Each part is labeled and described in plain English, making complex patterns easy to understand.
Add test cases with expected outcomes (should match vs should not match). Run them against your pattern to verify it works correctly before using it in production code.
Export your pattern as a ready to use code snippet. Choose JavaScript, Python, Java, C#, or PHP. The pattern is properly escaped and formatted for each language.
Enter a replacement pattern using $1, $2, or $<name> to reference capture groups. See the result instantly in the "Replacement Preview" tab.
Click "Copy CSV" to get all matches in spreadsheet format. Includes all capture groups as separate columns, ready to paste into Excel or Google Sheets.
Paste your text in the input area and select "Email" or "URL" from the Quick Patterns library. The tool will instantly highlight and extract all matches. Copy them with one click.
Capture groups let you extract parts of a match. Use parentheses like (\d{4}) to capture a year, or use named groups like (?<year>\d{4}). Each group appears in a separate column in the results table.
No, everything runs locally in your browser. Your data never leaves your device, making this tool completely safe for confidential business data or personal information.
You can toggle Global (g) to find all matches, Case Insensitive (i) to ignore case, Multiline (m) to match across lines, and Dotall (s) to make dots match newlines.
Yes, use the "Unit Tests" tab to add test strings with expected outcomes. The tool shows pass/fail status for each test. Once verified, copy the code snippet.
You can export snippets for JavaScript, Python, Java, C#, and PHP. Each snippet includes the pattern with proper escaping and example usage for that language.
Yes, the interface is fully responsive and works on smartphones and tablets. Test patterns and extract data anywhere, anytime.