HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail

Edit and easily insert HTML code into the body of your email message in Gmail, Outlook, and Yahoo Mail.

As of June 2026, HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail has 20,000 users and a 4.32/5 rating from 50 reviews in the Productivity category.

dziulProductivity★ Featured
Usersno change0%
20.0K
20,000
Ratingno change0%
4.32
50 reviews
Reviewsno change0%
50
Version
7.7.0
Manifest V3

History

2 snapshots

Tracking since Apr 14, 2026.

20.2K20.0K19.8KApr 14, 2026Jun 20, 2026
View as table
DateUsersRatingReviewsVersion
Apr 14, 202620.0K4.32507.7.0
May 14, 202620.0K4.33517.7.0
Now20.0K4.32507.7.0

Permissions & access

Permissions
storagetabsmanagement
Host access
None declared

Screenshots

HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail screenshot 1HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail screenshot 2HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail screenshot 3HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail screenshot 4HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail screenshot 5HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail screenshot 6

About

This extension will allow you to easily insert HTML code into the body of the message from your favorite webmail service: Gmail, Outlook, and Yahoo Mail.

There is no longer a need to limit yourself to the basic formatting options provided by webmail services.

Experiment and transform the way you create and send emails, making your messages more attractive and professional.

OUR WONDERFUL among other extensions:

★ The extension integrates seamlessly into the compose interface of your favorite webmail
★ It has an HTML editor that offers a simple and intuitive interface, where you can create/paste/import your custom HTML code and preview the result before inserting it into the body of the message
★ Insert HTML template from the selected text or the current cursor position
★ Converts internal and external CSS styles into inline styles ensuring HTML insertion without style leakage
★ Adaptive HTML Editor Theme with OS Theme

⚠ IMPORTANT ⚠
- Competitors, make a fair competition!!
- DO NOT RATE US NEGATIVELY for an issue encountered, please contact us at email [email protected], so that we can investigate and resolve the situation as soon as possible
- We do NOT publish ANYTHING on the web, if your file has an image, you will need to publish it on the web
- THIS EXTENSION DOES NOT REPLACE a mass mailer system

ENJOYED?

Give us a 5-star rating, a simple and painless action. Your positive review not only motivates us but also helps other users discover and enjoy the benefits our extension offers. Your feedback is fundamental to us and contributes to continuous improvement.

OBSERVATIONS:

- The strategy of injecting HTML template into webmail has its limitations, compared to a massive mailer system. For example: use of CSS Media Query, External Fonts, [...]

Technical

Version
7.7.0
Manifest
V3
Size
482KiB
Min Chrome
88
Languages
2
Featured
Yes

Metadata

ID
omojcahabhafmagldeheegggbakefhlh
Developer ID
ueeff2be69be244cd767a115ebee5c18c
Developer Email
[email protected]
Created
Feb 28, 2020
Last Updated (Store)
Mar 13, 2026
Last Scraped
Jun 20, 2026
Website
htmail.dev
Support URL
Privacy Policy

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Data sourced from the Chrome Web Store · last verified Jun 20, 2026.