Everything you need to customize your browsing experience with JavaScript — no developer tools required.
Create custom JavaScript that runs automatically on any website. Use the built-in code editor with syntax highlighting and ESLint integration to write clean, working scripts.
Choose exactly when your scripts execute. Run them before the page loads (document_start), after the page loads (document_end), or trigger them manually from the context menu.
Target specific websites using Chrome match patterns. Run a script only on Google, only on your company's internal tools, or across every site you visit.
Browse and install scripts shared by other users. From ad-blocking to UI customization, find ready-made scripts and install them with a single click.
Manage all your scripts from a dedicated web dashboard. Create, edit, enable, disable, import, and export your entire script collection as a portable zip bundle.
Small scripts sync across your Chrome profile automatically. Larger scripts are stored locally. InjectJS handles storage limits transparently so your scripts are always available.
Get started in under a minute. No configuration files, no build tools, no hassle.
Add InjectJS to Chrome from the Chrome Web Store. It takes a single click — no sign-up required.
Visit injectjs.net and the dashboard loads automatically when the extension is detected. Or browse the script repository without the extension to discover useful scripts.
Write your own JavaScript in the built-in editor, or install a community script from the repository with one click. Set your match pattern and trigger, and you're done.
Visit any matching website and your scripts run automatically. Toggle them on and off, edit them anytime, or export your collection to share with others.
JavaScript injection is a powerful technique used by developers, QA engineers, and power users for all kinds of tasks.
Remove annoying elements, pop-ups, cookie banners, and auto-play videos from any website.
Auto-fill forms, click through multi-step workflows, or scrape data from pages you visit regularly.
Change fonts, colors, layouts, or hide elements you don't need. Make any site look the way you want.
Inject test scripts, mock API responses, or add logging to production sites without touching source code.
Add keyboard shortcuts, increase contrast, resize text, or modify navigation to make sites more accessible.
Quickly test design ideas on live sites before writing production code. Perfect for designers and product managers.
Browse scripts shared by the InjectJS community. Install with one click, or share your own creations.
Adblocker using Easylist right from InjectJS! No other extensions required.
Shared by: Default UploadHide that crap from people or pages you don't follow on facebook. Requires some scrolling before it works.
Shared by: Default UploadHover over a page and see each container easily
Shared by: Default UploadMakes your cursor a cat with stars!
Shared by: Default UploadBlocks all 3rd party scripts from loading on all sites.
Shared by: Default UploadUse this template to inject your custom CSS onto a page
Shared by: Default Uploadmeia/inteira (todos setores)
Shared by: joaotrovao93@gmail.comMake the site have a rainbow background
Shared by: aston3069@gmail.comThis will blur all images, and when you hover over them it will slowly unblur
Shared by: Default UploadHover over a page and see each container easily
Shared by: baldguyjr@gmail.comSSR
Shared by: noamk@lognet-systems.comAdds free public links to facecheck.id results
Shared by: wrighthisd@gmail.comUse this template to inject your custom CSS onto a page
Shared by: guelay110@gmail.comOverride InjectJS Theme To A Pleasant Dark One. (Learned how to CSS Inject from yall I just made the theme for my use and I figured i'd share it.)
Shared by: kalanpdrake@gmail.coma
Shared by: phamgiangbbx96@gmail.comMake the site have a rainbow background
Shared by: Default UploadToggle Flying
Shared by: tangymiles@gmail.comdisable share manifest url copy to clipboard, forcing website to trigger fallback url event
Shared by: firegodpvp@gmail.comاصلاح پروانه
Shared by: apalipz@gmail.comdisable share manifest url copy to clipboard, forcing website to trigger fallback url event
Shared by: firegodpvp@gmail.comJoin thousands of users who use InjectJS to automate tasks, block distractions, and make the web work the way they want.
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