Check the HTML for error. This doesn't send the source to the external. If web page behavior is not correct, you should turn off it.
Users
60K
0 in 30 days
Rating
4.3 / 5
−0.01 in 30 days
Ratings
96
0 in 30 days
Store rank
#3,119
#2,735 among extensions
Version
0.6.0.2
updated 8 Apr 2025
Users
monthly, 3 years
Latest, 15 Oct 2026:60,000 usersMove the mouse over the chart for any month
Ratings count
monthly, 3 years
Latest, 15 Oct 2026:96 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 HTML Error Checker
# Description
Check the HTML for errors. This extension will teach HTML error and page source.
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# Releases
## Version 0.6.0.2
- Fixed a bug that prevented checking for HTML errors under certain conditions
## Version 0.6.0.1
- Fixed a bug where the page was automatically checked even when "Enable auto check" was turned off.
- Updated the logic for retrieving the page source.
## Version 0.6.0.0
- Tentatively, Manifest V3 is supported (some functions have not yet been completed, but we will hurry to support them as soon as possible. We apologize for any inconvenience.)
## Version 0.5.0.4
- Adjust Privacy and & Permission.
## Version 0.4.0.3
- Fix some bugs
"Enable auto check" was not working at the time of first.
## Version 0.4.0.2
- You can check local files (file://~~)
- Add notification for update information
## Version 0.3.3.1
- Add option page
- You can set some rule for warning.
ex) If the page has test server url, you will know it.
- Fix some bugs
## Version 0.2.12
- Adjust Japanese lang file
## Version 0.2.11
- Add auto check function
## Version 0.1.32
- Adjust source code
- Adjust all icon
- Fix some bugs
## Version 0.1.31
- Change extension's icon.
## Version 0.1.30
- Change extension's name. (Tag -> Error)
- HTTPS support
- Multi window support
## Version 0.1.20
- manifest 2 support
## Version 0.0.30
- correct langage setting.
- corresponded to manifest 2.
- Modified to ignore element in comment and script.
- Ignore tag in script & comment elements
- English & Chinese support
- Fix some bugs
powerd by fine. thanks :)
Sorry, I'm not good at English :(
Growth
Window
Users
Change
Ratings
Rating
7 days
0
+0.0%
0
−0.01
30 days
0
+0.0%
0
−0.01
6 months
0
+0.0%
−1
−0.02
1 year
0
+0.0%
−1
−0.02
Chrome Web Store search rankings
Where HTML Error Checker appears when people search the store, with the 30 day change