cookiesync-cli 0.1.4

Sync your browser cookies across machines.

cookiesync

Sync your browser cookies across machines — land on a new laptop already logged in.

cookiesync copies the cookies your browser already holds on one machine and replays them on another, reusing your live session instead of asking for passwords again — so logins, 2FA, and SSO state carry over without re-authenticating. It's browser-agnostic, and you pick which machines and which sites it touches. Automation can borrow a logged-in session too: hand a CI job or an agent the cookies it needs, never a password.

macOS only. cookiesync keeps your browser's Safe Storage key behind a Touch ID prompt and a Secure Enclave–bound daemon, so decrypted cookies never land on disk. The key helper is a Developer-ID-signed, notarized .app.

Install

Install the cookiesync command with uv:

uv tool install cookiesync-cli
cookiesync --help

Quickstart

# Fetch the signed key helper and install the LaunchAgents (one time)
$ cookiesync install
Installing the signed key helper via Homebrew (brew install yasyf/tap/cookiesync-keyhelper)…
Installed and verified key helper: /Applications/cookiesync-keyhelper.app
Installed cookiesync agents.

# Track a browser to sync between this Mac and another host
$ cookiesync browser add other-host chrome
Tracking other-host/chrome/Default

# Hand a logged-in session to a script — no password
$ cookiesync cookies https://example.com --browser chrome

Once a browser is tracked, the resident daemon watches its cookie store and converges it across your hosts. Run cookiesync reconcile to force a full pass.

Commands

Command	What it does
install	Fetch the signed key helper, then install the LaunchAgents (watch daemon + reconcile tick).
uninstall	Remove the cookiesync LaunchAgents.
doctor	Check that the key helper is installed and Developer-ID signed.
browser add/ls/rm	Track, list, and untrack the browser profiles cookiesync syncs across hosts.
watch	Run the resident sync daemon: watch local stores and serve the RPC socket.
sync --browser <name>	Converge one browser group across this host and its peers.
reconcile	Run a full reconcile pass over every tracked browser group.
auth	Release the Safe Storage key behind one Touch ID tap and cache it for a short window.
cookies <url>	Stream a URL's cookies in the chosen format (Playwright by default).
self	Print this host's SSH target, as reposync reports it.
rpc <method>	Low-level RPC client for the resident daemon.

Run cookiesync --help, or cookiesync <command> --help, for the full reference.

How it works

cookiesync install fetches the notarized key helper and starts a resident daemon. The daemon watches each tracked browser's cookie store, and on a change it converges that group across your hosts over SSH — extracting and re-applying cookies through the same RPC the peers speak. Decryption needs the browser's Safe Storage key, which the helper releases only behind a Touch ID tap (cookiesync auth) and caches in the Secure-Enclave-bound daemon for a short window, never on disk.

License

PolyForm Noncommercial 1.0.0 — see LICENSE.