Auto-scroll any page and measure scroll speed.
✏️ Sketching your tool…
Enter any URL and this free scroll speed checker auto-scrolls it top to bottom, reporting pixels per second, a 60fps smoothness score, and page height.
🔒 This tool runs entirely in your browser. Nothing is uploaded or stored.
Open the Scroll Speed Test and use the controls in the workspace below: auto-scroll any page and measure scroll speed. Results appear instantly in your browser, with nothing to install, sign up for, or pay for.
Yes. The Scroll Speed Test is completely free, like every tool in the PrimeFreeTools library. There are no accounts, subscriptions, or usage limits.
No. The Scroll Speed Test runs with JavaScript in your browser, so what you enter never leaves your device and nothing is stored on a server.
Enter any URL and this free scroll speed checker auto-scrolls it top to bottom, reporting pixels per second, a 60fps smoothness score, and page height. You will find it grouped under Developer Tools together with 76 other free tools on the PrimeFreeTools homepage.
Sep 20, 2026
A practical look at internet speed tests: what download, upload, ping, jitter, and packet loss measure, how Wi-Fi differs from Ethernet, and how to troubleshoot a slow connection.
Read postFree tools that run right in your browser. No data leaves your device. No sign-ups, ever.
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