Provides buttons to copy HTML source and opening the Nu Html Checker website.
Users
10
+1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#196K
#164K among extensions
Version
0.1.0
updated 5 Jun 2026
Users
monthly, 4 months
Latest, 16 Oct 2026:10 usersMove the mouse over the chart for any month
Ratings count
monthly, 4 months
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 NuCheck
Simple extension that provides buttons to copy the HTML source of the current tab and opening the Nu Html Checker website, where you can directly paste in the HTML source in your clipboard.
It has 3 buttons:
Copy HTML: Copies the HTML source of your current tab into your clipboard.
Open Validator: Opens the Nu Html Checker website.
Copy & Validate: Does both things at once.
Using this extension, the HTML validation simplifies down to just one mouse click and a paste (Ctrl+V / Cmd+V).
I wrote this extension because the good old "HTML Validator" extension is somewhat outdated. I need a modern solution that makes that HTML validation checking work as convenient as possible.