Storage Transfer

Transfer localStorage, sessionStorage and cookies between tabs

Storage Transfer moves localStorage, sessionStorage, and cookies from one browser tab to another — without opening DevTools or copy-pasting values by hand. Built for developers who juggle local, staging, and production environments and need to reproduce a session, an auth token, or a feature flag in a different tab. HOW IT WORKS 1. Open the tab that has the storage data you want to copy. 2. Click the Storage Transfer icon. 3. Choose a storage type: Local, Session, or Cookies. 4. Select exactly which items to transfer. 5. Search for and pick a destination tab. 6. Click Transfer. FEATURES • Transfer localStorage, sessionStorage, and cookies independently or together • Item-level selection — copy only what you need, nothing extra • Searchable destination picker with tab favicons • Cookies are transferred with every attribute intact: domain, path, secure, httpOnly, sameSite, and expiration • Destination tabs are sorted with localhost and dev domains first • Works with any HTTP/HTTPS tab COMMON USE CASES • Copy an auth token from production to localhost to test with a real session • Move session data between local ports, e.g. :3000 to :8080 • Reproduce a user-reported bug locally using their (anonymized) cookies • Sync storage across staging, dev, and production tabs while testing PRIVACY Storage Transfer does not collect, store, or transmit any data. Everything happens locally in your browser: it reads storage from the source tab you choose and writes it to the destination tab you choose, using Chrome's own APIs. No analytics, no telemetry, no remote servers. PERMISSIONS • cookies — read cookies from the source tab and write them to the destination tab • scripting — inject a short script to read localStorage/sessionStorage in the source tab and write it in the destination tab (this is the core transfer mechanism) • host access (all sites) — required so the extension can run on whatever site you're developing against, since source and destination tabs are often on different domains