Best alternatives to Inject JS - Run JavaScript code (2026)
10 Chrome extensions that do a similar job to Inject JS, closest first. Each shows real store users, its rating, how recently it was updated and how many permissions it asks for.
Inject JS - Run JavaScript code today
Inject JS alternatives, compared
- 1
Code Injector
Inject custom JavaScript code into any website
238 users3.5★ from 2 ratingsUpdated 8 months ago6 permissions- About 8.4× fewer users than Inject JS
- Updated less recently
- Asks for fewer permissions (6 vs 7)
- 2
Moonly - javascript and css injector
Inject javascript and css into pages dynamically.
810 users5.0★ from 6 ratingsUpdated 5 months ago5 permissions- About 2.5× fewer users than Inject JS
- Updated less recently
- Asks for fewer permissions (5 vs 7)
- 3
Run Javascript
Run custom Javascript, each time you visit a website
≈20K users4.1★ from 51 ratingsUpdated 6 months ago7 permissions- About 10× more users than Inject JS
- Updated less recently
- 4
exec JavaScript
Inject your own JS code on any website
≈1K users3.3★ from 3 ratingsNot updated for 2+ years5 permissions- About 2.0× fewer users than Inject JS
- Updated less recently
- Asks for fewer permissions (5 vs 7)
- 5
User JavaScript and CSS
User JavaScript and CSS on any website
≈200K users4.5★ from 667 ratingsUpdated 3 weeks ago8 permissions- About 100× more users than Inject JS
- Updated more recently
- Asks for more permissions (8 vs 7)
- 6
Inject Code
Inject your own Javascript, React/JSX, CSS / LESS / SCSS/ SASS into any webpage
≈1K users4.6★ from 11 ratingsUpdated 7 months ago6 permissions- About 2.0× fewer users than Inject JS
- Updated less recently
- Asks for fewer permissions (6 vs 7)
- 7
Quick Javascript Switcher
Disable JavaScript on any site in one click
≈200K users4.0★ from 817 ratingsUpdated 19 months ago4 permissions- About 100× more users than Inject JS
- Updated less recently
- Asks for fewer permissions (4 vs 7)
- 8
Custom JavaScript for Websites
Inject custom JS into the current domain.
≈1K users5.0★ from 3 ratingsUpdated 3 weeks ago4 permissions- About 2.0× fewer users than Inject JS
- Asks for fewer permissions (4 vs 7)
- Listed under Accessibility
- 9
InjectJS – JavaScript Injector & Custom Script Manager
Inject custom JavaScript (JS) into any webpage, automate tasks, and manage scripts. Ideal for developers and power users.
983 users4.3★ from 11 ratingsUpdated 10 months ago6 permissions- About 2.0× fewer users than Inject JS
- Updated less recently
- Asks for fewer permissions (6 vs 7)
- 10
Kode Injector
Inject JavaScript and CSS from local files into websites
407 usersNot rated yetUpdated 2 months ago4 permissions- About 4.9× fewer users than Inject JS
- Asks for fewer permissions (4 vs 7)
Inject JS alternatives: questions
What is the best alternative to Inject JS?
By users, the most popular alternative is User JavaScript and CSS with ≈200K users and a 4.5-star rating. The closest match by what it does is Code Injector.
Which Inject JS alternative has the best rating?
User JavaScript and CSS has the highest rating of these alternatives with 50+ ratings: 4.5 out of 5 from 667 ratings.
Is there a Inject JS alternative that asks for fewer permissions?
Quick Javascript Switcher asks for 4 permissions, against 7 for Inject JS.
How many alternatives to Inject JS are there?
We list 10 close alternatives to Inject JS on the Chrome Web Store, picked by what they do and ranked by how close they are.
Users and ratings are the figures shown on the Chrome Web Store, re-checked continuously. Alternatives are matched on name, description, category and topic. Browse best-of lists by niche.