Does it always search globally?

Yes, the global flag is added automatically if you don't include it, since extracting all matches (rather than just the first) is the whole point of this tool.

What if there are no matches?

The tool reports 'No matches found' rather than an empty output, so you can tell at a glance whether the pattern matched anything.

Does it show capture groups separately?

No, this tool lists the full match for each occurrence. For working with individual capture groups, you'd need to process the matches further in code.

Regex Match Extractor Online - List All Regex Matches

Overview

Introduction

Pulling every email address, URL, or custom-pattern match out of a block of text is a common regex task.

This tool runs the match and lists the results directly.

What Is Regex Match Extractor?

A regex match extractor that runs your pattern against the input text with JavaScript's native RegExp engine and lists every full match, one per line.

It runs entirely client-side as part of this site's String Tools collection, so nothing you paste is ever uploaded to a server.

How Regex Match Extractor Works

The tool constructs a RegExp from your pattern and flags (adding the global flag automatically if missing), then uses matchAll() to collect every match's full text.

The transformation happens synchronously in JavaScript the moment you type, with no network round trip involved.

When To Use Regex Match Extractor

Use it to pull all emails, URLs, or custom-pattern occurrences out of a block of text at once.

It's a fast way to get the answer without opening a code editor, a REPL, or writing a one-off script just to check.

Often used alongside Regex Tester and Find & Replace Tool.

Features

Advantages

Uses the standard JavaScript regex engine, so patterns behave exactly as they would in code.
Always searches globally, collecting every match instead of just the first.

Limitations

Shows full matches only, not individual capture groups.

Examples

Extracting email addresses

Input

Contact: ada@example.com or alan@example.org for details.

Output

ada@example.com
alan@example.org

Both email addresses matching the pattern are listed, one per line.

Best Practices & Notes

Best Practices

Test tricky patterns with Test a String with Regex first if you're unsure whether they match as expected.

Developer Notes

The global flag is appended to whatever flags you supply if not already present (`flags.includes("g") ? flags : flags + "g"`), since String.prototype.matchAll() throws a TypeError if called with a non-global regex.

Regex Match Extractor Use Cases

Extracting all email addresses or URLs from a block of text
Pulling every occurrence of a custom pattern out of a log file
Testing a regex pattern's matches before using it in code

Common Mistakes

Expecting capture group values instead of full matches in the output.

Tips

Use Test a String with Regex first to confirm the pattern matches at all before extracting.

Regex Match Extractor