Download Hydra

Your messages — iMessage, WhatsApp, LinkedIn, Instagram — in one local hub on your Mac. Nothing leaves the machine.

macOS · Apple Silicon (M1 or later) · v0.1.0 · private beta

Hydra for Mac
The desktop app — local SQLite hub, sync engine, and MCP server. Start here.
↓ Download .dmg
~26 MB
Browser extension
Reads LinkedIn & Instagram through your own browser session. Load unpacked in Chrome.
↓ Download .zip
~114 KB · unzip → Load unpacked
Supporter license

Hydra Pro

The local app stays free and open source. Pro pays for official signed builds, managed adapter fixes, and one year of updates.

Buy Pro · $99Renew · $49

Setup — about 5 minutes

  1. 1
    Install the app
    Open the .dmg, drag Hydra into your Applications folder, then eject the disk image. Launch it from Applications — the first time, right-click the app → Open (it's a private beta, so macOS asks you to confirm once).
  2. 2
    Turn on iMessage (optional)
    To read iMessage, Hydra needs Full Disk Access. It'll walk you through it: System Settings → Privacy & Security → Full Disk Access → enable Hydra, then relaunch. Everything else works without this.
  3. 3
    Install the browser extension
    Unzip the extension somewhere permanent (e.g. ~/Applications/hydra-extension). In Chrome open chrome://extensions, turn on Developer mode (top-right), click Load unpacked, and choose that folder. Keep the folder put — if you move it, Chrome drops the extension.
  4. 4
    Connect your accounts
    Open Hydra → Connections. Link WhatsApp by scanning a QR with your phone. For LinkedIn / Instagram, open the site in Chrome and click Connect in the Hydra popup. Messages start flowing into your local inbox.
Local-first, by design

Your conversations and session tokens stay on your Mac — there's no Hydra server, no account, nothing uploaded. It's open source, so you can read exactly what it does.

Something broke? open an issue or just text me.