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Syncroll

Scroll any two tabs together — Chrome's native Split View, or two side-by-side windows Syncroll opens for you.

Add to Chrome — Free View on GitHub

30-second walkthrough · plays in place

Why Syncroll

Built for Chrome's native Split View

Designed around Chrome 145+ Split View — open the popup inside a split and both panes are detected automatically. A first-class fit for Chrome's newest tab layout.

Side-by-side windows on demand

Tick a single checkbox and Syncroll arranges two windows at the left and right halves of your screen — instant side-by-side, on any monitor, in any setup.

Pick any two open tabs

Cross-window dropdowns list every open page with its favicon. Choose the left and right pane from anywhere — no dragging tabs around to set things up first.

Canvas-app pan sync

Wheel events relayed across panes so Figma, Miro, and Excalidraw canvases pan together in lock-step. A capability built right into Syncroll from day one.

Chat UI aware

Detects the inner scroll container on ChatGPT, Gemini, and Slack — sidebars stay anchored while the conversation scrolls together on both sides.

Private by design

No servers, no analytics, no data collection. Sync runs locally through Chrome's built-in messaging — your tabs and content stay entirely on your machine.

How it works

Syncroll popup showing two tab dropdowns with favicons and an 'Open in new window' checkbox

Tab picker + side-by-side windows

Cross-window picker lists every open tab with its favicon. Works seamlessly inside Chrome's native Split View, and tick Open in new window to have Syncroll arrange two side-by-side windows for you on the fly.

Works everywhere

Two browser windows showing articles scrolled to the same position

Standard websites

Wikipedia, MDN, news sites. Proportional sync keeps pages of different lengths aligned.

Two ChatGPT conversations scrolled in sync — sidebars stay put

Chat UIs

ChatGPT, Gemini, Slack. Detects the inner scroll container — sidebar stays put, only the conversation scrolls.

Two Figma canvases panning in sync — toolbar and layers stay anchored

Canvas apps

Figma, Miro, Excalidraw. Wheel events relayed across panes for true side-by-side panning.

Get started

  1. Install Syncroll from the Chrome Web Store.
  2. Click the Syncroll icon and pick the left and right tab from the dropdowns. Any tab in any window works.
  3. Already in Chrome's native Split View? Both panes are detected automatically. Or tick Open in new window to have Syncroll arrange two side-by-side windows for you.
  4. Hit Sync Split Panes. Scroll either side; the other follows.
Private by default. No data collection, no tracking, no servers. All sync happens locally between your tabs through Chrome's built-in messaging.

Ready to scroll two tabs together?

Free, open source, and built for Chrome's native Split View. Install in one click — no account, no setup.

Add to Chrome — Free View on GitHub