Promptly Labs

by Promptly Labs · promptly-labs.com · Developer Tools

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Prompt optimization tool integrated with ChatGPT, Claude, and Gemini.

Users

−6 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#121K

#101K among extensions

Version

1.4.5

updated 15 Jun 2026

Users

monthly, 6 months

Latest, 16 Oct 2026: 37 usersMove the mouse over the chart for any month

Ratings count

monthly, 6 months

Latest, 16 Oct 2026: 4 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 Promptly Labs

Prompt engineer assistant to instantly develop higher quality prompts, and to upon request generate super prompts.

Growth

Window	Users	Change	Ratings	Rating
7 days	−2	−5.1%	0	0.00
30 days	−6	−14.0%	0	0.00
6 months	+35	+1750.0%	+4	+5.00

Version history

8 versions recorded

1.4.515 Jun 2026

1.4.23 Jun 2026

1.3.02 Jun 2026

1.1.030 May 2026

1.0.54 May 2026

1.0.421 Apr 2026

1.0.316 Apr 2026

1.0.24 Apr 2026

Details

Category: Developer Tools
First seen: 4 Apr 2026
Size: 1.5 MB
Languages: en
Pricing: Free
Privacy policy: promptly-labs.com
Support: promptly-labs.com
Extension ID: mioebkaecngedfgedplfmcaaccooojpj

Permissions and risk

Elevated riskimpact 4, likelihood 2

Permissions

storageidentityidentity.emailtabs

Site access

https://chat.openai.com/*https://chatgpt.com/*https://claude.ai/*https://www.claude.ai/*https://gemini.google.com/*https://*/*http://127.0.0.1:8787/*http://localhost:8787/*http://127.0.0.1:3000/*http://localhost:3000/*and 3 more

Can read and change data on every website you visit.