Reviews & Comments of User JavaScript and CSS chrome extension

I absolutely love this extension! but please add a dark mode for the whole extension, settings page and all, not just the editor window, ive tried to fix it using the extension itself, but it seems css cant be injected into extension pages, like the chrome store, annoyingly

The best extension

Great extension but fails to work in page iframes :( yes the iframes are for the same domain it just doesnt attach the script or CSS to them

This is what we have been waiting for. A great app, simple and works great. Sr JS Devs don't require JS Validation ;)

I use (and love) it for many websites!! Thx

I wish there's a keyboard shortcut to delete a line of text in the editor

thanks dear for this awesome extension

Very good extension, I can't live without. I suggest to the developer to seperate the Enable/Disable to target CSS or JS seperately, Sometime we need to disable customized JS for a website but we want to keep CSS or vice versa without changing the javascript code (now using Return; in top of js script)

Awesome, very simple and easy to use

Working extension, not sure about benefits over TamperMonkey

Great extension but add please scss support for css, exists a lot of libraries that convert your scss to css. Thank you.

Excelente! Melhor de todas!

Great extension, but the dev does not respond to support requests/issues ?

Very easy to use

Did what I wanted instantly, great work.

I love it. I can write once and stop getting anoying by bad web site that created by someone else and I have to use everyday :)

Minimal and fully functional!

Probably one of the most handy tools I keep forgetting I have installed! I've used it in a few different places to fix small personal-preference related issues across the web and it only takes a few minutes to "set and forget". My favorite use so far has been to remove the stupid ad banner that shows up when I log into a certain online payment/peer-to-peer payment site that won't be named. Not only did I hide the banner, but I also added a tiny javascript snippet to automatically redirect me to the dashboard once the page finishes loading. No more clicking to continue!

Great tool. I use it constantly

This is one of my favorite Chrome extensions. Highly recommended if you know basic CSS/Javascript coding.

Great extension! One thing I find annoying is that you can only have one script per domain/url. I want to make modular scripts for all domains that can be turned on and off.

This is an awesome plugin. Thanks.

how to insert babel?

Exactly what I needed. I previously used different extensions for CSS and JS, and this one could replace them both. Thank you!!

Not working for me. Tried removing logo on youtube and it doesn't work. If dev fixes issue i will remove this review. P.s. my code: #logo { display:none; } & it worked on another plugin but that one is only a live viewer so maybe it's an issue with this extension.

Very well made extension. The built-in editor is super nice to use.

JS code validation doesn't work anymore ?

This is such a great little extension. It does one job, it does it well, and just works, unlike the ocean of dodgy alternatives.

quality app for implementing custom stylesheets or js code on sites i frequent

Excellent extension with loads of extras to help developers, including some hidden features like Ctrl + click for multiple cursors, Alt + drag to highlight a rectangle, etc.

Awesome extension! I am a web developer & i use it daily in many sites to: * Extract information to the console * Extract information to the page (when the information is related to some elementos & i want to see the information in its context) * Modify the look&feel of the pages * Trace events to validate them * ... With some knowledge of JS & CSS you can do almost whatever you want ?

This is awesome!!

Love it, it only needs some autocomplete features and it will be complete

I was looking for tool to inject some code, "side wide". Finally found.

The only thing this extension needs is '"all_frames": true' enabled in the manifest, and CSS injection into all frames. Great work!

This is, by far, my favorite program - period. The web is designed and programmed by people who fundamentally can't know what you prefer. This plugin lets me customize the internet to my liking. 10/10

I added this extension to deal with a single site whose styles made it unusable, but soon I found myself using it to modify the functionality of every site I visit frequently. If you're a CSS pedant, you need this.

if you are a front-end dev, you'll know how powerful this thing is! absolutely loved it!

Very helpful extension. I tried many others, but this is the least complicated one (and it is for free!). I use it in conjunction with Requestly, since the latter allows firing rules based on specific inbound data (e.g., as a result of a REST call from the webpage to the backend). I would appreciate it if such a feature is implemented in this extension so that I don't need two extensions. Also, it would be great to have some sort of standard code auto-format feature triggered with some shortcut (sorry, but I am a bit of a tidy-code-maniac :) ). Anyway, thanks a lot for this great extension!!

Great work so far!

wow, good work guys, it works very well

This is the best extension on the webstore I define global styles to decrease distraction. Like on the all websites and all images grayscale and blurred. It would be amazing if there was a button to add current website to previously defined css,js set. And for removing ofc. So next to each item in the list "rules for this website" will have a [ + ] and [ - ] buttons to add current website to list as example.com with minus it will add negative !example.com

Hope I can switch the JS/CSS editor to DARK MODE in future

Congratulations to developer of this very useful extension. Very very useful simple and it does exactly what I want. Many useful features: autocomplete, different colors in the code you write, wildcards in urls and much more. Thanks a lot!

Love it.

Great plugin. If you visit website every day you must to use this plugin to customize the page you love the most!

Great work. Increases my productivity drastically. Is there a way to run multiple scripts in a specific order. For a given site I want to write a base script that will always load first (for all pages) Then based on the specific page additional scripts will be provided. Thanks

Amazing and powerful to make other people work better.

This is literally the best extension for adding custom javascript or css to a website. Also great for prototyping your own extension or starting to build your own website widgets. It does make finding issues for clients websites easy as well because I can debug their javascript easier just using this extension and going to their website. Love it.

Very recommended. It is very easy to use and works perfectly on both Google Chrome and Microsoft Edge.

This is by far the best of its kind. Well done sir.

A very well refined solution to injecting JS and CSS to improve tools you use. This is something I rely on to improve productivity and fix the problems with web apps that move too slowly or are not specialized enough for my needs. The intelligent URL matching and ease with which you can export code, toggle features on and off and even the code editor are all very well done.

Works, very simple interface.

Nice & useful! How can i add to a "New Tab" page (formed by an extension)? i tried a URL of "" but hello world window.onload = function(){ alert('Hello world'); }; did not work ... any work around for "Null" URLs??

It's very useful.

THE BEST!!!

AMAZING I as a dev find this extremely useful for auto-start and page "rules" 6 stars

very good helps me with my krunker CSS

Absolutely wonderful! Thank you for making this. Truly an outstanding extension. It helps me use my own scripts without having to pack them as extensions.

I love it, why i only see this now.

great work!! please add syn with google extensions.

Works great, the editor is good as well. Adding support for sync with google drive would be nice, so I can have the same thing on multiple browser. Can you please add support for LESS or SASS?

Fantastic! I love it!

For now working flawlessly, Installing libraries is a bit confusing however

Awesome <3

Briliant, really useful extension. Thanks for making this available. I have a need to modify text on certain websites because grey and other low contrast text gives me eyestrain so I need to change the text colour to black, this extension lets me do this on a per site basis which is tremendously useful to me. Just one query, though. Certain websites seem impervious to CSS injection with this extension. Ebay.co.uk is one such, nothing I try seems to have any effect on that site. I fixed Ebay with a bit of javascript instead but I am curious as to why some sites cannot be modified by injected CSS.

Really love this extension. Just wish the data is synced with my account. Also, wish it supports scss as well.

Love It

Tried maybe 10 other plugins, this one just works! I spent maybe 30 minutes installing and then removing 5-8 others to no avail. Not sure what was going on but this plugin just worked and was intuitive. Thanks much for it.

Love it! I use it all the time. One of those things that makes browsing frequently browsed sites better.

Super quick ans easy to set up. Used to use tampermonkey until I saw this. This is so much neater

Hmm, it seems to include its own jquery file? Seems to rely on jquery a lot, even in the css/js injection part of the script. Uninstalled. Devs, please let me know if I am wrong.

Great

Awesome – the best custom CSS and JS injection tool yet!

Support for chrome:// URLs would've been neat, other than that it's 10/10

Just. Perfect.

Deserves.

simply does exactly what you expect it to.

Best in class. Does one job and does it well!

Truly amazing. Can't imagine my miserable like w/o it.

Excellent app. Do the job perfectly. Thank you very much

To repeat Jon Sabo's Mar 9, 2018 review, which perfectly expresses my sentiments: "Fantastic! I love it! Only thing I can think of would be to add syncing on the google account. So i can run same scripts on different computer."

Perfect. However, I still have a wishlist ;) 1. Password protection 2. Sync using Google account

Great extension I'm using it daily for my work. The only thing I was thinking about to allow me to inject the script where I need, some time I need to stop event propagation but I can't do this as the script located at the end of the document. Thinking of allow me to provide the xpath of an element so script get put after. Thanks

Absolutely life quality booster.

Exactly what I was looking for - automatically run javascript on a list of custom urls.

Simple, easy but powerful

This is the best injector so far. URL matching works fine, turning scripts on-off is great.

Superb! This is the first extension of its kind that works flawlessly. If you're taking feature requests, integration with a github repository would be great, as I'm running into all kinds of versioning issues importing and exporting on different computers.

Excellent!

I tried a bunch of the different user JS extensions. So far, this one is the best.

I love & enjoy this extension. It is of great help. (Reason for 4 Stars) Javascript & JQuery scripts don't work on Youtube. There should be an option "Highest JS Priority" as there is for for css. Only CSS works in youtube. Please update for this issue.

This is best javascript and css injection plugin available

Works. The other options require jquery and doesn't work if a website doesn't include it.

I have been editing CSS on pages I visit for years, now I can do it once and it stays. This is fantastic!

Great extension! Easy to edit page specific rules. Fast en-/disabeling single rules. Good URL wildcard filters.

Perfect! This is what i am looking for... Thank you dev.

Awesome! working as expected.

Deleted my script without warning. Do not use.

This extension allowed me to do what I wanted to do in about 15 seconds.

Very simple to use. Works great! How about a Firefox version too? Thanks.

You're the best, around.

very good plz create for Firefox

I just wanted to remove a distracting sidebar from a site I use frequently. I was able to do so in less than a minute after installing the app!

Great! That's what I was looking for. Suggestion: Please add more color themes as well as set custom font of editor.

Was annoyed by Google Calendar not offering more granular theme control. Loaded up your extension & now I've styled the weekend calendars with ease. Thanks!

It lacks importing in bulk of firefox's @-moz-document rules. I have them a lot, so entering them manualy is disgusting.