If you use Squarespace and often hit the design limits, Spark Plugin is one of the simplest ways to unlock a more custom, high end look without writing any code. It gives you over 100 visual customizations that you can apply instantly.
Before we get into the details, quick transparency note: this post contains affiliate links. If you try Spark Plugin through my link, you pay the same price and I earn a small commission that helps keep the coffee flowing. Thank you
Try Spark Plugin here: Start your free trial
Use discount codes: JOE and 10OFFCODE
What Spark Plugin Actually Is
Spark Plugin is a visual customization tool that integrates directly with Squarespace. Once installed, you will see a small Spark icon in your top toolbar. Clicking it opens a full panel of design controls that you normally only get through CSS.
Start your free trial here: Try Spark Plugin
Discount codes: JOE and 10OFFCODE
You can modify:
- Buttons
- Text styles
- Headers
- Mobile menus
- Backgrounds
- Images
- Videos
- Galleries
- Lines
- Social icons
- Lists and carousels
And you can apply changes globally or to individual blocks with one click.
Spark is also designed to adapt to future Squarespace updates, which keeps your customizations stable.
Why Spark Plugin Is Worth It
After testing almost every Squarespace customization tool out there, Spark stands out for a few reasons.
Very fast installation
You paste one code snippet into Code Injection, click save, and Spark is ready. It takes under two minutes.
Try it free here: Start your free trial
No coding required
All styling controls are toggles, sliders, and dropdowns. If you can click, you can customize.
Smooth performance
Spark uses clean CSS based styling, so your site stays fast and lightweight.
Better control on mobile
One of the most requested features is the ability to hide blocks or entire sections on mobile or desktop. Spark does this instantly.
Future proof
Spark updates regularly to keep up with Squarespace changes.
Customizations You Can Do With Spark
Here are a few examples of what Spark makes possible:
- Animate your announcement bar
- Add hover effects to images and buttons
- Remove automatic image overlays
- Add subtle motion effects
- Rotate blocks for a more editorial layout
- Add gradient accents and custom colors
- Customise your mobile menu
- Change the color of specific words in a heading
- Add vertical dividers
- Show or hide sections on different devices
Everything is previewable before you apply it.
Spark Plugin Pricing
Spark offers a 14 day free trial with no card required.

Personal Plan
Best for one website.
- Access to all customizations
- Use on one site
- Adaptive visual builder
Start your trial: Start your free trial
Business Plan
For people managing multiple websites.
- Everything in Personal
- Use Spark on up to 3 sites
- Works for personal and commercial sites
Use discount code JOE or 10OFFCODE.
Designer Plan
Ideal for designers and agencies.
- Use Spark on multiple new client sites per year
- Client dashboard included
- All customizations remain active forever
- All Business features included
Try it here: Try Spark Plugin
Spark Plugin vs SquareKicker
Here is the simplest comparison.
- Spark Plugin gives fast, visual, click to apply customizations for everyday design improvements.
- SquareKicker gives deeper, more advanced layout controls.
Both are excellent. Most users should start with Spark because it is easier and faster to use.
Try Spark free here: Start your free trial
How To Install Spark Plugin (Quick Guide)
- Click Start your free trial
- Create your Spark account
- Copy the installation code from your dashboard
- In Squarespace, go to Website Tools and then Code Injection
- Paste the code into the Header Injection field
- Save
- Open the editor and click the Spark icon
What Real Users Say
Across Trustpilot and Squarespace communities, Spark Plugin receives consistent five star reviews. Users highlight:
- How easy it is to use
- How polished their site looks afterward
- That it saves hours of manual CSS
- That support is helpful and responsive
- That it keeps working smoothly when Squarespace updates
It is especially popular with creators, businesses, and designers who want more control without the stress of custom code.
Final Thoughts: Is Spark Plugin Worth It
If you want your Squarespace site to look cleaner, more polished, and more custom without learning code, Spark Plugin is absolutely worth trying.
It removes the biggest design limitations, saves massive time, and keeps your site future safe.
Get your free trial here: Try Spark Plugin
Use discount codes: JOE and 10OFFCODE
Affiliate Disclosure
This post contains affiliate links. If you use them, we may earn a commission at no extra cost to you.