Free Shopify App

Sonic Page
Speed Booster

Make your store feel instant. Predictive preloading that eliminates wait times.

Instant by Design

Designed to reduce bounce rates and keep shoppers engaged by eliminating the delay between thought and action.

Hover Preloading

Sonic predicts where the user is going. When they hover over a link, we fetch the page in the background so it opens instantly on click.

PredictiveUXSpeedInstant Response

Mobile Optimized

Mobile users don't hover. Sonic detects touchstart events to begin preloading milliseconds before the finger lifts.

Mobile FirstTouch EventsTouch Support

Smart Exclusions

Preloading 'Add to Cart' links can lead to empty carts. Sonic intelligently ignores Cart, Checkout, and Logout actions to prevent errors.

Safety LogicNo BugsSafe Cart

Zero Configuration

No theme code edits. No complex settings. It works with all Online Store 2.0 themes right out of the box.

Plug & PlayNo Code1-Click Install

Perceived Speed

While it doesn't trick the Google PSI bot, it drastically improves how fast your store *feels* to actual human shoppers.

UXRetentionReal Feel

Ultra Lightweight

Tiny footprint. No jQuery. No bloat. The script is smaller than a single product image and loads asynchronously.

EfficientVanilla JS<1.5KB Size
Real User Experience

Every millisecond costs you money.

Customers don't wait. If your product page takes just a moment too long to load, the "impulse" to buy fades. Sonic removes that friction entirely.

1%
Revenue decrease for every 100ms delay
Source: Amazon Latency Study
Browsing
Hover
Click
Loaded
Standard StoreWait time: ~300ms
Waiting...
With SonicWait time: 0ms
Ready...

User is browsing...

Frequently Asked Questions

Everything you need to know about Sonic.

Yes, Sonic Page Speed Booster is completely free to use. We believe in providing essential tools that help merchants grow without adding to their monthly overhead.
Yes! Sonic is compatible with all Shopify themes, including Online Store 2.0 themes. It works out of the box with zero configuration.
Quite the opposite. The script is extremely lightweight and loads asynchronously. It only preloads data when a user intends to click, ensuring no wasted resources.
No. Sonic is designed to respect your analytics. It doesn't trigger fake page views or interfere with your data tracking.
No. Sonic installs automatically. There is no manual code insertion required. Just install the app and it starts working immediately.
Forever Free
Instant Setup
5-Star Support