HTML Diff Check Tool

Tool for checking HTML difference between tabs ,or between production and development environment.

As of May 2026, HTML Diff Check Tool has 10,000 users and a 4.35/5 rating from 17 reviews in the Developer Tools category.

Usersno change0%
10.0K
10,000
Ratingno change0%
4.35
17 reviews
Reviewsno change0%
17
Version
3.0.0
Manifest V3

History

1 snapshots

Tracking since Apr 26, 2026.

10.1K10.0K9.9KApr 26, 2026May 23, 2026
View as table
DateUsersRatingReviewsVersion
Apr 26, 202610.0K4.35173.0.0
Now10.0K4.35173.0.0

Permissions & access

Permissions
tabsstoragecontextMenusscripting
Host access
http://*/*, https://*/*

Screenshots

HTML Diff Check Tool screenshot 1HTML Diff Check Tool screenshot 2

About

HTML Diff Check Tool is chrome addon for checking difference between tabs or between Production and Development.

You can check HTML diff with other tab.
You can open the URL of production and development server each other with pre-register pairs of those URLs. Also, you can check HTML diff of them.

[usecase]
- To check the difference between a testing and production environment before/after deployment.

- When your co-worker asks you to check a testing environment which he/she updated.

[How to use]
1. In the settings register the combination of a testing and production environment domain (including a subdomain).

2. Turn on the "balance scale" icon or select from context menu at the web page where you want to check a testing or production environment.

3. Click the "open" button then a testing or production environment domain will be opened. 

4. Click the "diff" button so you can check the difference between the HTML sources.

[about privacy]
- The registered domains, URLs or HTML sources are not sent to third parties.
- According to correspond to manifest v3, analyzed via Google Analytics is stopped.

[release note]
-v.3.0.0
correspond to manifest v3

-v.2.2.0
Add to context menus.

-v.2.0.0
Add function for checking diff with other tab.

-v.1.6.0
Add a comment box (Google form) Link

-v.1.5.0
Change UI design a little.

-v.1.4.0
Change Wrap Lines Function is added.
ShortCutKey is also added. Alt + Down (Go to next diff) /  Alt + Up (Go to prev diff) / Alt + w (Change Wrap Lines)
Bug fix.

-v.1.3.0
Nex/Prev Diff and Search Functions are added.

-v.1.2.0
-v.1.1.0
bug fix

-v.1.0.0
Add alert when it could not access to target url.

-v.0.2.0
You can also use in incognito mode.
Fix bug and strings.

- v.0.1.11
You can also check HTML diff include JavaScript rendered HTML. Change option for that, if you need.

Technical

Version
3.0.0
Manifest
V3
Size
1.46MiB
Min Chrome
88
Languages
2
Featured
Yes

Metadata

ID
fjbonpakihikkocmockbkndhooihpijo
Developer ID
ubd016f7404bf4777cf0eecf0003672ce
Developer Email
[email protected]
Created
Jan 8, 2017
Last Updated (Store)
Jun 24, 2024
Last Scraped
May 23, 2026
Website
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified May 23, 2026.