JScript tricks

JScript tricks

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

What is JScript tricks?
'JScript Tricks' is a powerful Chrome extension for web enthusiasts and developers that lets you inject your own JavaScript or CSS, powered by JQuery, onto any webpage. This allows the user to customize their browsing experience, and even inject automatic JQuery. The extension benefits from an easy-to-use interface and contains features like Autostart, cache saving, support for shortcut keys, and ability to edit selected text. From minor tweaks to major overhauls, the ability to apply JavaScript and CSS tricks is at your fingertips with 'JScript Tricks'.
By: szamil
Rating: 4.22 (50)
Version: 0.9.88 (Last updated: 2020-09-24)
Creation date: 2017-11-04
Risk impact: High risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 2
  • tabs
  • http://*/*
  • https://*/*
Size: 348.16K
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
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App development suspended

This app allows you to inject your own JavaScript or CSS tricks to any page (by domain). You can use nice editor (from CodeMirror), which has nice syntax highlighter. Script and CSS are applied after the page is loaded (document.onload event).

Script and css are injected before DOM creation. Use $(function(){ ... }) to start script on DOMReady.

New: Export/Import scripts to/from text file. bugs fixed


  • auto save to cache + load cache button, separate for CSS and JS
  • Automatic JQuery injection,
  • custom JavaScript and CSS injection,
  • popup to quick edit and apply tricks or selected text only,
See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
  • Useful for creating custom scripts
  • Ability to turn bookmarklets into keyboard shortcuts
  • Allows predefining CSS or jQuery for specific websites
  • Auto start feature not working for some users
  • UI could be improved for better user experience
  • Saving functionality is awkward and unintuitive
Most mentioned
  • Auto start not working
  • Useful tool for developers
  • Saving functionality
  • Syncing across devices
  • Custom scripts for specific websites
Recent reviews
Works great, does everything I expected. It would be great if it synced across devices, but it is good as it is.
by A Google user, 2014-12-30

Auto start not working .... need manual run:< auto run resulting >> Uncaught ReferenceError: $ is not defined
by Adrian Li Adrian Li, 2013-10-10

for some reason jquery isn't loading
by Adrian Li Adrian Li, 2014-02-10
View all user reviews
Risk impact

JScript tricks is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this extension. Review carefully before installing. We recommend that you only install JScript tricks if you trust the publisher.

Risk likelihood

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

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Promo images
JScript tricks small promo image
Small promo image
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