CSS and Javascript Injection

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This extension has been flagged as potentially malicious.

Extension Delisted

This extension is no longer available in the official store. Delisted on 2025-09-15.

CRX ID
ckddknfdmcemedlmmebildepcmneakaa
Status
Minor Policy Violation Removed Long Ago No Privacy Policy
Description from extension meta

This plugin will remember all css/js code you injected in every website and auto-inject them when web page is loaded

Image from store
CSS and Javascript Injection
Description from store

You can inject css/javascript code to web pages with this plugin.
And it will remember the code you injected for different websites.
Finally, these code will be auto-injected next time you open the website.
The code pieces are grouped by host.

The source code is hosted in github: https://github.com/comcaptain/chrome_plugins. You can submit bugs there.

1.0.5 update:
1. fix ace editor redraw bug
2. now js will only be executed when page is loaded
3. add external css resource tab:
urls are seperated by line
you can use alias for url, now there's only one alias(bootstrap -> https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css). Contact me if you have other need for alias([email protected])
4. now js will be executed before the page is fully rendered to avoid FOUC
5. now you can inject jquery code in pages without jquery(jquery-2.1.4)

version 1.0.6 update log:

1. guarantee injected css/js appear after original page's css/js references in head tag
2. fix updateCss execution timeline
3. fix bug: do not update css after css text is cleared

Latest reviews

Ibrahim Ibrahim 2021-04-13

greate extention

Hadi Yahia 2020-11-13

Thank you ! Work perfectly :)

victor schandrin 2020-09-14

Great but can you make it that the javascript get injected at the end of the page?

achraf mirrane 2020-08-29

love it. but can we know where you save the scripts we write? a website changed it's url and i lost it's script.

Mihovil Lovric 2020-08-27

This tool works as it should. Love it.

Clécio Vianna 2020-08-18

Muito valioso!

Gabriel Iasi 2020-07-23

Helped a lot in automating stuff

Harly Walsh 2020-07-21

Beautiful; does what it's told. Best one I've used so far. Lacks a default function but, if you leave your stock standard neatly packed, it's a simply copy paste.

Waheed 2020-03-25

soooooo gooooooooood

Віталій Шуманський 2020-03-13

Супер! Просто, зрозуміло і працює відмінно!

Ivan Serensen 2020-03-07

Great App.. Works great, even on Banking websites... Would love a larger window or re-size ability.

Pro STRALPT 2019-12-17

please add feature to export setting that will usefull when i got uninstalling this extension, we just import again setting file then we should'nt copy a code one-by-one, for currebt websites that i just inject

Ed Zangeef 2019-11-22

Hey great addon, but where is my code stored as apparently facebook has changed their url (redirecting now to web.facebook) and the extension is no longer loading mycode on the new url

Andrey Plumer 2019-10-11

Does exactly whan has been need. Excellent!

Alvaro Vasconcelos 2019-07-08

Amazing plugin!

Gorjan Shukov 2019-07-04

The best CSS and JavaScript injector extension available!

Soya Honda Iwata 2019-06-19

the best i have seen

Trẻ Trâu Vô Dụng 2019-06-12

not acivating my js

Govarthanan Venunathan 2019-03-29

Good

Phillip Wesley-Brown 2019-03-28

Would be great if it support jquery too :) But excellent as is for CSS/JS

Bania1988 2019-03-07

Stopped to work correctly. Custom CSS vanishes after closing the popup, and opening it back. Every time I need to retype the custom CSS.

2019-02-21

Extremely useful for editing downright ugly sites you are forced to use or to highlight a specific part. Would love to easily export the injections I made to various sites in bulk instead of having to remember what sites I modified and copying from the little tab.

Robert Blue 2018-12-11

This Chrome extension worked perfectly to get rid of an annoying "People also search for" box when using Google's Search feature. Thank you for this invaluable add-on.

Amit Sidhpura 2018-08-24

Just Great! It will be great if I have someway to sync code, so we do not loose in future.

Csaba Együd 2018-05-31

I use it to fix some annoying CSS issues in Gmail web interface. I'm amazed by it's smoothness. I haven't tried JS injection though, just CSS, but it's really potent. Great job!

Renzo Deils 2018-05-31

Increíblemente útil y práctico.

Nur Waqid M 2018-05-28

Berguna bagi front end @waqid

Sebastien Boureux 2018-04-29

Très bien.

Tiby 2018-02-08

Simple and effective.

Mihai D 2018-02-08

It says it's compatible, but JS injection doesn't work on chromium, on ubuntu. After refresh only the first line of code remains.

Filip Poulsen 2018-02-08

It deleted it when i close the tab, but its a very nice extension

Leslie Hernandez 2018-01-22

Works perfectly! Very useful to me. Can you add an option to show the code/domain, written in the past?

Mozahidur Rahman 2018-01-16

very useful!

Aizal Manan 2018-01-10

The way it manage which website is easy. 5 star for that. And the CSS is live update (no need refresh). 5 star for that too. But I would like to edit in new tab for larger CSS/Script and to avoid the 1sec open popup delay

Công dân toàn cầu 2017-12-30

Work well! However could it be show CSS and JS at the same time instead of tab? Or it would be so perfect if it have an option to setting what tab can be set as default/focus/active Thanks!

Brandon Reid 2017-10-26

Love this. Works awesome! Thanks!

Jan Ruzicka 2017-07-26

Very nice! But is it possible to make the plugin window larger? Like 1000x1000 at least? Thank you.

Matthew Fahrenbacher 2017-07-08

Generally really good. There seems to be some kind of arbitrary character limit. Is there any reason why scripts are capped? Is this a setting that can be overriden somehow?

Statistics

Installs
10,822
Market
Chrome Web Store
Category
11_web_development
Rating
4.3 (80 votes)
Last update
2015-06-09
Version 1.0.6
Languages
en