Chrome

Run Javascript

Also on Edge · 876 installs

Run Javascript has 20,000 users, rated 4.1 from 51 ratings, #2,594 of 179,346 in Productivity.

View in the Chrome store ↗
Users
20,000
+0 (0.0%) over 11 days
Rating
4.1
51 ratings
+0 ratings a week, measured over 11 days
Rank on Chrome
#3,961
of 287,376
up 217 since 2026-10-23
Version
5.1.5
Last updated 2026-05-17

Also in the last two weeksclimbed 217 places this week

Screenshots

Screenshot 1 of Run Javascript

Description

Run custom Javascript, each time you visit a website

Reviews Reviews aren't collected for Chrome.

4.1 average from 51 ratings.

Read them on the Chrome Web Store.

Growth change in installs

Per Growth Growth % Actual change Measured over
day 0 0.0% 0 1 days
week 0 0.0% 0 11.2 days
month 0 0.0% 0 59.2 days
year Not enough history yet
How these figures are measured

Change in installs. This store publishes the count rounded to one or two significant figures, so it does not move when the listing grows - it moves when the rounding rolls over. The figures above are therefore what was actually observed between the two crawls named in "measured over", not scaled to the window, and the percentage is of that same rounding step - so a small listing crossing a bucket shows a very large one. A window needs a full period of history before it reports anything.

Users20,000
2026-09-04 · 20,000 2026-11-03
Ratings51
2026-09-04 · 50 2026-11-03
New ratings per month+0 so far
Sep 2026 from 2026-09-04: +1 Oct 2026: +0 Nov 2026 so far: +0
Sep 4 Nov so far

Chrome rounds rating counts above 1,000, so these bars are approximate.

Average rating4.1
2026-09-04 · 4.1 2026-11-03

Permissions Manifest V3 · 5 required

Broad
Reaches every website you visit, or holds a powerful capability.
  • Reads and changes your data on all websites
  • Run scripts on web pages you visit
  • See your open tabs and the pages you're on

Ad blockers, password managers and VPNs need this kind of access to do their job. This describes what the extension can reach, not how it behaves.

Reads and changes your data on all websites ⚠ sensitive

  • activeTab See the page you're currently viewing, only when you click the extension
  • alarms Schedule its code to run at a later time
  • scripting Run scripts on web pages you visit
  • storage Save its own settings and data locally
  • tabs See your open tabs and the pages you're on

Alternatives to Run Javascript

Name Users Rating
Inject JS - Run JavaScript code 2,000 4.7

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