Synchronize Tab Scrolling

Scroll once, sync everywhere. Compare documents, code, or translations side by side with one-click sync.

--- Keeping two documents scrolled to the same spot usually means switching back and forth. This extension links your browser tabs so when you scroll in one, all connected tabs follow to the matching position instantly. --- How It Works 1. Click the extension icon to open the tab selector 2. Search and select the tabs you want to sync 3. Click "Start Sync" — done When multiple tabs share the same URL, a smart notification offers to sync them with a single click. --- Key Features • Real-time scroll synchronization across any number of tabs • Command palette with search — find tabs by title or URL, filter by domain • Manual position adjustment — hold Option (Mac) or Alt (Windows) to fine-tune individual tab alignment • Smart auto-sync suggestions when duplicate URLs are detected • URL navigation sync — click a link in one tab and all linked tabs follow • Domain exclusion — permanently block suggestions for specific sites • Auto-reconnection after sleep or interruption, no manual action needed • Full keyboard shortcuts for every action --- Who Is This For? • Translators comparing original and translated text • Developers reviewing code changes across versions or files • Researchers reading multiple papers side by side • Students comparing lecture notes with reference material • Anyone working with two or more documents at once --- Pages Where Sync Is Not Available Due to browser security restrictions, scroll sync does not work on certain pages: • Google services (Docs, Drive, Gmail, Sheets, Slides) • Web apps such as Figma, JIRA, Notion, and Microsoft Office Online • Browser internal pages (chrome://, edge://, about:) • Extension stores and search engine result pages • PDF files and viewers • Login and authentication pages • Special URLs (file://, view-source:, data:) Restricted tabs appear disabled in the selection list with a tooltip explaining the limitation. --- Privacy • No data collection — zero analytics, tracking, or cookies • Works entirely offline with no network requests • No account or sign-up required • Open source: https://github.com/jaem1n207/synchronize-tab-scrolling --- Available on Chrome, Firefox, Edge, Brave, and all Chromium-based browsers. 9 languages supported: English, Korean, Japanese, French, Spanish, German, Chinese (Simplified and Traditional), Hindi.