HTMaiL: Insert HTML into Gmail, Outlook and Yahoo Mail
Tools
Edit and easily insert HTML code into the body of your email message in Gmail, Outlook, and Yahoo Mail.
Users
30K
Rating
4.3
Reviews
50
7D Growth
0|0%
Stable signalNo paid features detectedLow-risk permissions
Gmail HTML Editor
Edit Gmail emails as HTML.
Users10KCurrent public install base
Rating3.0Store average score
Reviews15Public review volume
Manifest versionV3Extension platform version
7-day growth0Net users gained this week
7-day growth rate0%Relative weekly velocity
Preview
6 assetsGmail HTML Editor Media preview
Trend
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User Growth Over Time
Rating trend
7-day rating trend
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7-day rating change
Start
3.00
Latest
3.00
7-day rating change
0.00
2026年7月14日2026年7月20日
Growth overview
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1-day growthNo data
----7-day growthFlat
00%30-day growthNo data
----Technical snapshot
Version, languages, and crawl freshness
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Version1.2.0
ManifestV3
Size152KiB
Languages1English
Published
Store updated
Last crawled
English
Overview
Product summary
Review the store description, core capabilities, and common use cases.
Easily edit emails you're composing in Gmail as HTML, allowing for a whole new level of customizability.
Adds a button to Gmail "New Message" popup to allow emails you're composing to be edited as HTML.
The extension also works in the "mailto" screen.
Reviews
Recent review snapshot
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Store average score3.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average3.2Average computed only from synced review bodies below
Reviews with text12Synced review bodies
Total ratings / reviews15Chrome Web Store public rating/review count
Store average score: 3.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.
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Envie el correo y luego no se envio como HTML
It worked perfectly!!! An icon like this <> showed up and i can now edit my email as HTML
Tellement bien
It does start HTML ace editor inside compose but it does not know how to send the actual HTML. In short, it does not work.
Hi I am a real person telling you that this extension actually works, unlike all the other ones that don't or have a bunch of fake reviews that are all AI generated and they're not even trying to hide it. If you are capable of finding the button (see review below mine), it works perfectly.
Button is next to Send button in the compose dialog box. Works well. Thank you!
Button does not show up. I have restarted chrome but still not working.
Very useful tool, thanks to developers!
button is missing :/
Works great - just needed to reload gmail page to get it to show up. FYI, doesn't show up in tabs where gmail was already open when the extension was installed. Worst case, try restarting your browser.