Regex Tester — Live Match Highlighting & Capture Groups

Unknown author · Developer Tools

Open in Chrome Web Store

Users

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Avg rating

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Ratings

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Updated

Aug 4, 2026

Media

1 item

Description

Test regular expressions with live match highlighting and capture groups. Regex Lab is an offline regex playground for developers. Type a pattern and test string to see live match highlighting and capture groups instantly. Pro adds a built-in cheat sheet. Features: • Live match highlighting • Case-insensitive / multiline flags • Capture group breakdown • Live replacement preview with capture-group support

History

30d 90d 1y all

rating_count is the Chrome Web Store ratings count, not a written-review count.

Details & SEO

SEO signals

Listing completeness signals

Title length
Characters in the extension name.
55
Description length
Characters in the listing description.
410
Media assets
Screenshots and videos on the listing.
1
Has promo video
Whether the listing includes at least one video.
No
Languages
Declared language locales.
1
Developer website
Listing exposes a developer website URL.
No
Contact email
Listing exposes a contact email.
Yes
Keyword in name
Case-insensitive substring match in the name.
—
Keyword in description
Case-insensitive substring match in the description.
—
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
—
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
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These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.