Testi@ - Live Email Testing with (ESP)

by https://testi.at/ · testi.at · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Email Testing Email preview outlook test

Users

614

+2 in 30 days

Rating

4.1 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#39K

#33K among extensions

Version

0.67.6

updated 24 Sep 2025

Users

monthly, 3 years

Latest, 15 Oct 2026: 614 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years

Latest, 15 Oct 2026: 8 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 Testi@ - Live Email Testing with (ESP)

Live Email testing 101 Email clients use your favorite editor for Email development Supported Email service provider: (MailChimp) (Campaign Monitor) (Bee Free)

Growth

Window	Users	Change
7 days	−13	−2.1%
30 days	+2	+0.3%
6 months	+64	+11.6%
1 year	+106	+20.9%

Chrome Web Store search rankings

Where Testi@ - Live Email Testing with (ESP) appears when people search the store, with the 30 day change

Search phrase	Position	30 days
testing	#34	new

Version history

4 versions recorded

0.67.624 Sep 2025

0.67.56 Mar 2021

0.67.331 Oct 2020

0.67.229 Oct 2019

Details

Category: Developer Tools
First seen: 29 Oct 2019
Size: 60 KB
Languages: en
Pricing: Free
Privacy policy: testi.at
Support: testi.at
Extension ID: hbgeikbbpfjgcicclnjcokjapbgkkfkd

Permissions and risk

Moderate riskimpact 3, likelihood 1

Permissions

<all_urls>declarativeNetRequestdeclarativeNetRequestWithHostAccessdeclarativeNetRequestFeedbacktabsactiveTab

Site access

http://*/*https://*/*https://*.createsend.com/*https://www.campaignmonitor.com/*https://mjml.io/try-it-live*https://*.admin.mailchimp.com/campaigns/wizard/neapolitan?id=*https://*.admin.mailchimp.com/templates/edit?id=*https://sendgrid.com/marketing_campaigns/ui/campaigns/*/edithttps://beefree.io/editor*https://pro.beefree.io/*/editand 5 more

Can read and change data on every website you visit.