Yoink — Cookie Sync for Localhost & Staging

Yoink copies cookies from any source host (staging, QA, prod) onto your localhost and staging tabs automatically — so you can test against a real authenticated session, without ever opening DevTools. ✦ How it works Add one or more source hosts in the popup — where cookies come from (e.g. https://app.staging.example.com) Open a destination tab — localhost and 127.0.0.1 work out of the box; add your own staging hosts with * wildcards (e.g. app-*.staging.example.com) Yoink automatically copies all cookies from the source hosts to that origin on every page load A small toast in the top-right corner shows you what was copied ✦ Features • Custom destinations — sync onto any host, not just localhost; wildcard patterns cover every staging subdomain at once (app-*.staging.example.com) • Multiple source hosts — yoink from staging, QA, and prod independently • Per-host & per-destination pause — silence a specific entry without removing it • Global pause — disable the whole extension with one toggle • Optional on-page panel — a clean floating widget on your synced pages (off by default) • Smart input — Tab-completes the source field with the hostname of your currently active tab • Incognito support — works across normal and incognito cookie stores • Status-colored toolbar icon — green when active, amber when paused, gray when idle • Zero network — cookies never leave the browser; everything happens via the Chrome cookies API ✦ Why Modern web apps depend on auth cookies. Testing a local build — or a freshly spun-up staging environment — against real data usually means manually copying cookies through DevTools, for every cookie, every refresh, every team member. Yoink does it in one click. ✦ Privacy Yoink does not collect, transmit, or store any data outside your browser. No analytics, no telemetry, no remote servers. Cookies move directly between Chrome's local cookie stores. ✦ Notes • Secure cookies cannot be set on http://localhost — use https://localhost if you need them • __Host- / __Secure- prefixed cookies have strict rules and may not transfer • Source code: https://github.com/ilyasudakov/yoink