Library Sniffer icon

Library Sniffer

by justjavac · justjavac.com · Developer Tools
Established publisherManifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Sniff web framework and javascript libraries run on browsing website.

Users
10K
0 in 30 days
Rating
4.1 / 5
−0.15 in 30 days
Ratings
95
0 in 30 days
Store rank
#7,480
#6,352 among extensions
Version
3.0.0
updated 2 Sep 2026

Users

monthly, 3 years
2,00016K30KAug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 10,000 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
3065100Aug 2023Apr 2025Oct 2026
Latest, 15 Oct 2026: 95 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 Library Sniffer

LibrarySniffer is a web technology detection tool that detects which JavaScript libraries or frameworks are being used on the web page currently being viewed. With LibrarySniffer you can detect web pages, frameworks, third-party services, server technologies and more.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%0−0.15
30 days0+0.0%0−0.15
6 months0+0.0%−2−0.17
1 year0+0.0%−5−0.16

Version history

4 versions recorded
3.0.02 Sep 2026
2.9.123 Jul 2020
2.9.021 Jul 2020
2.8.77 Sep 2018

Details

Category
Developer Tools
First seen
7 Sep 2018
Size
488 KB
Languages
en, fr, pt-BR, zh-CN
Pricing
Free
Privacy policy
github.com
Support
github.com
Extension ID
fhhdlnnepfjhlhilgmeepgkhjmhhhjkh

Permissions and risk

Moderate riskimpact 3, likelihood 2
Permissions
tabswebRequest
Site access
http://*/*https://*/*
Can read and change data on every website you visit.

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