Custom JavaScript & jQuery

Custom JavaScript & jQuery

by Simtech Development Ltd.

Add JavaScript & jQuery scripts to the store with a few clicks

3.7 of 5 stars(6 reviews)

Elementary in use

Install and simply copy&paste any JavaScript or jQuery code to the app and get immediate result online. No need to modify the code anymore.

Reliable solution

JavaScript components set you free of tiresome code editing. No coding—no errors. Reduce your effort and save your time.

Multifaceted possibilities

Add free and paid scripts, create and test your own. Google Analytics, Facebook Pixel and other scripts can be integrated into your store.

About Custom JavaScript & jQuery


  1. Embed JavaScript in your store without coding.
  2. Avoid coding errors.
  3. Install with one click.
  4. Feel the immense diversity of the scripts.
  5. Place it anywhere in the store.
  6. Add scripts before the head tag.
  7. Use JS parameters.

What is Custom JavaScript & jQuery?

CustomJS is the tool allowing you to improve your store with different JavaScript tools. CustomJS app simplifies the use of JavaScript components and sets you free from tiresome code editing. What's great about the app, is that you shouldn’t be really savvy on how Shopify operates or where to add the code. There is no need to modify the source code anymore. You just place it into the app and start enjoying the tweaks. That’s it!

Why you need Custom JavaScript & jQuery?

  • Acquire the advantage of the industry standard

When it comes to cool improvements for your Shopify store, JavaScript plugins are the best. Online visitors tracking, alert and prompt messages, dates and calendars, interaction sounds for your content, maps and much more helpful tools. You can use quite a lot of analytics plugins and tracking codes without the necessity to implement them separately. They all can be added and managed via the single CustomJS: Google Analytics, Facebook Pixel and many other pixels and systems can be integrated into your Shopify store with several clicks.

  • Effortlessly install, use and experiment

CustomJS app is a handy tool both for tech-savvy users and those who do not know a thing about programming. The app makes it super easy to add any custom JavaScript as well as free and paid scripts, create and test your own without a fear to damage the store.

Integrates with

  • java,
  • javascript,
  • jQuery

Media gallery





  • Only 3 scripts available.



  • Unlimited jQuery and JavaScripts snippets.



  • Unlimited number of scripts

  • Our developer will check your script and fix errors

  • We will create scripts you need from scratch

* All charges are billed in USD. Recurring charges, including monthly or usage-based charges, are billed every 30 days.

Overall rating
3.7 of 5 stars
Based on 6 reviews

  • 5 of 5 stars
    67% of ratings are 5 stars
  • 4 of 5 stars
    0% of ratings are 4 stars
  • 3 of 5 stars
    0% of ratings are 3 stars
  • 2 of 5 stars
    0% of ratings are 2 stars
  • 1 of 5 stars
    33% of ratings are 1 stars

Most recent reviews

Peb S

So far it is working. I am new to Shopify and it's always hard when you are sure about an app. I knew a little about Java and I am hoping this work.


Working as expected, a great way how to get the javascript to header section. Fast support if needed :-)


No support and fake upsell to buy their parser -- useless product.