Octi Web

A browser client for Octi, so all your devices stay in reach even when your phone isn't. Pairs with the same end-to-end encrypted sync-server as the Android and desktop apps.

Features

• Pairs with the Octi Android app and Octi Desktop via paste-link or QR.
• Supports the Android modules: clipboard, files, apps, wifi, power, connectivity.
• File share: drag-and-drop upload across all paired devices.
• End-to-end encrypted.

Hungry for details? Check the Octi wiki. Still have questions? Join us on Discord!

Use

With the official Octi server

The Octi server I host (the one the published Android/Desktop apps talk to) only accepts browser traffic from web.octi.darken.eu. Open that URL in any modern browser and pair via paste-link or QR — your existing Octi account "just works."

A self-hosted copy of Octi Web cannot reach the official server.

Canary (bleeding edge)

A rolling canary build rides every push to main. Visit web.octi.darken.eu/canary/ if you want the latest features before they ship to stable. The page shows a banner identifying the channel + the exact commit it was built from.

Caveats:

• Canary and stable share the same domain but use isolated browser storage. Pairing the canary URL registers a new device on your sync account, separate from the stable one.
• Canary may break, drop data, or change shape without warning. If something looks wrong on canary, fall back to web.octi.darken.eu.

The canary Docker image is ghcr.io/d4rken-org/octi-web:canary (refreshed on every push to main).

With a self-hosted sync-server

If you run your own octi-server you have two options: point the hosted SPA at it (no install needed — web.octi.darken.eu is in octi-server's default CORS allowlist), or run your own copy of the SPA.

Run your own SPA

Download octi-web-<version>.tar.gz from the latest release, extract, and serve with any static host:

tar xzf octi-web-*.tar.gz
python3 -m http.server -d dist 8080
# or: nginx, caddy, GitHub Pages, S3 + CloudFront, …

Or run the Docker image:

docker run -p 8080:80 ghcr.io/d4rken-org/octi-web:latest

Sync-server CORS

A browser SPA can only reach the sync-server if the server allows the SPA's origin.

Default allowlist (no flag needed):

• https://web.octi.darken.eu
• https://d4rken.github.io
• https://d4rken-org.github.io

To add your own origin (e.g. local dev), override via --cors-allowed-origins (replaces the defaults):

./bin/octi-server --datapath=./octi-data \
  --cors-allowed-origins=https://web.octi.darken.eu,http://localhost:5173

Requires octi-server with the CORS plugin (d4rken-org/octi-server#22).

Mixed-content caveat

Browsers block HTTPS pages from talking to plain HTTP servers. If your sync-server is HTTP-only (LAN setup), serve your own SPA over HTTP on the same network — the public web.octi.darken.eu is HTTPS and can only reach HTTPS sync-servers.

Octi ecosystem

• Octi — the Android app.
• Octi Server — the end-to-end encrypted sync-server.
• Octi Web — this browser client.
• Octi Desktop — Compose Multiplatform desktop client (Linux / macOS / Windows).

License

Octi Web's code is available under a GPL v3 license, this excludes:

• Octi icons, logos, mascots, marketing materials and assets.
• Octi animations and videos.
• Octi documentation.
• Translations.