Highlight by background color and visualize regex patterns on any webpage.
Users
19
+5 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#154K
#129K among extensions
Version
1.0
updated 22 Nov 2024
Users
monthly, 2 years
Latest, 16 Oct 2026:19 usersMove the mouse over the chart for any month
Ratings count
monthly, 2 years
Latest, 16 Oct 2026:0 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Highlight by Live Regex patterns
Take your regex skills to the next level with the Live Regex Tester Chrome extension! Whether you're a developer, tester, or regex enthusiast, this tool makes it easy to test and highlight and visualize regular expressions in real time on any webpage.
Features:
🔍 Test Regex in Real-Time: Input your regex pattern and instantly see matches highlighted on the current page.
🎨 Customizable Highlights: Choose a new color for each search for better visual distinction.
🗑️ Clear Previous Matches: Easily reset your highlights with a single click.
📊 Match Count Display: View the total number of matches for your pattern.
⚡ Intuitive Design: A clean, user-friendly interface that simplifies regex testing.
🌟 Supports All Regex Patterns: Test any valid regex pattern, including advanced ones with spaces, special characters, and numbers.
How It Works:
Open the extension and enter a regex pattern (e.g., \btest\b).
Add flags like g (global), i (case-insensitive), or m (multi-line).
Click Apply to see matches highlighted directly on the webpage.
View the total matches count for instant feedback.
Need a fresh start? Click Clear to remove highlights.
Why Use Live Regex Tester?
Save time by testing patterns directly in the browser.
Perfect for debugging, validating data, and refining regex logic.
Lightweight and fast—no need to switch to external tools.