JScript tricks

You can trick any page! Add your own JavaScript (powered by JQuery) and/or CSS to any page.

JScript Tricks is a powerful Chrome extension that empowers users to customize any webpage by injecting their own JavaScript (powered by jQuery) and CSS code on a per-domain basis. Utilizing a user-friendly editor with syntax highlighting (CodeMirror), it allows you to write and apply code that runs after the page loads or when the DOM is ready.

Key features include automatic jQuery injection, separate caching for CSS and JavaScript with auto-save and manual load, quick popup editor for on-the-fly script modifications, support for script autostart, and convenient keyboard shortcuts (Ctrl+S to save, Ctrl+Alt+H for hidden tricks). Users can export and import script configurations as text files, making it easy to share or backup their customizations.

Perfect for developers, designers, or power users looking to tweak page behavior or appearance without direct access to site code, JScript Tricks offers a seamless and flexible toolset for web enhancement and testing.

User reviews

Pros
  • Powerful and useful tool for programmers
  • Enables custom scripts and CSS per website effectively
  • Allows turning bookmarklets into keyboard shortcuts
  • Supports DOM ready handling for script execution
  • Works as a custom ad-blocker by removing unwanted elements
Cons
  • Auto-start/autorun feature is often not working
  • Lack of sync across multiple devices/computers
  • UI could be improved for better usability
  • On Mac, save shortcut conflicts with system 'Save Page' dialog
  • Settings page lacks visible list of websites with custom scripts (only visible on export)
Recent reviews
It helps me with the problem of the AD-block alert always appearing, even if I removed any ad-blocker. The scripts I created work smoothly. I use the trick described in the description to wait for the DOM to be fully loaded. The missing star is because in the Settings page I dont see the list of websites with custom scripts. Only after clicking on "export" I can see the different scripts. Only DEFAULT is present in the Settings Any advise on that?
by Mario Biasi, 2024-02-26

falta html inyeccion
by Edgardo Arias, 2018-11-12

Una de las mejores y mas poderosas extensiones para programadores
by Plenty O'Tool, 2017-11-13
View all user reviews ›

Extension safety

Risk impact

JScript tricks requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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Risk likelihood

JScript tricks has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
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