Hacker News Duplicate Detector icon

Hacker News Duplicate Detector

by dstein64 · dannyadam.com · Accessibility
FeaturedEstablished publisherManifest V3 Free
View in Chrome Web Store Data as of 16 Oct 2026

Detects duplicate HN submissions.

Users
33
−1 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#126K
#105K among extensions
Version
1.10.0
updated 19 Mar 2024

Users

monthly, 3 years
62443Aug 2023Apr 2025Oct 2026
Latest, 16 Oct 2026: 33 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 years
001Aug 2023Apr 2025Oct 2026
Latest, 16 Oct 2026: 1 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 Hacker News Duplicate Detector

On Hacker News discussions, this extension generates links to existing Hacker News posts that point to the same URL.

Growth

WindowUsersChangeRatingsRating
7 days−3−8.3%00.00
30 days−1−2.9%00.00
6 months−4−10.8%00.00
1 year−1−2.9%00.00

Chrome Web Store search rankings

Where Hacker News Duplicate Detector appears when people search the store, with the 30 day change
Search phrasePosition30 days
hacker#47−5
news#68+10

Version history

9 versions recorded
1.10.019 Mar 2024
1.9.016 Dec 2023
1.8.728 Sep 2022
1.8.624 Feb 2022
1.8.523 Feb 2022
1.8.422 Feb 2022
1.8.220 Feb 2022
1.8.119 Feb 2022

Details

Category
Accessibility
First seen
28 Mar 2020
Size
22 KB
Languages
en
Pricing
Free
Extension ID
ocagpmnfhgbgmbaaimpehpbnnplkmpkd

Permissions and risk

Minimal riskimpact 1, likelihood 0
Permissions
storage
Site access
https://hn.algolia.com/api/v1/search?query=*

Alternatives to Hacker News Duplicate Detector

Extensions that rank for the same store searches or share the Accessibility category, ordered by users
MSN New Tab500K users · 3.5 ★ · 199 ratings daily.dev | Where developers discover what's next400K users · 4.9 ★ · 2,867 ratings 360 Internet Protection20M users · 4.4 ★ · 5,565 ratings Read&Write for Google Chrome™18M users · 2.4 ★ · 1,593 ratings Volume Master7M users · 4.8 ★ · 49,458 ratings Dark Reader7M users · 4.3 ★ · 13,250 ratings Screenshot reader™7M users · 2.5 ★ · 89 ratings Read Aloud: A Text to Speech Voice Reader6M users · 3.8 ★ · 3,644 ratings