CloudSSH

CloudSSH connects a browser to SSH servers through a Worker that speaks SSH-2.0 over Cloudflare TCP sockets. Each session runs in its own Durable Object. The UI adds an SFTP file manager, saved servers and one-time share links.

CloudSSH implements SSH-2.0 itself, in TypeScript on the Web Crypto API. It supports password, keyboard-interactive and key authentication (Ed25519, ECDSA and RSA), verifies host keys on first connect, and can reach machines without a public IP through a Cloudflare Tunnel. The browser talks to the Worker over WebSocket. The terminal is xterm.js with several tabs per page, search, log export and a layout for phones. Beside it, an SFTP file manager handles uploads, downloads and in-browser editing of text files. Signed-in users, through GitHub OAuth or a single admin password, can save servers with encrypted credentials, keep command snippets, chain up to three jump hosts and create one-time share links that give someone an audited session. An AI agent panel, using a user-supplied key for an OpenAI-compatible API, can run commands and read terminal output on the connected host. Everything runs in one Worker with three SQLite-backed Durable Objects for SSH sessions, per-user data and share records. Turnstile can be switched on to block bots. A fork can also enable an optional GitHub Actions workflow that syncs upstream releases daily.

Built for: Developers and sysadmins who want browser SSH access to their servers, hosted in their own Cloudflare account instead of a third-party web terminal.

An alternative to: Shellngn, Termius

What you can use it for

• SSH into servers from a locked-down laptop, tablet or phone
• Edit server config files over SFTP in the browser
• Reach private hosts through jump hosts or a Cloudflare Tunnel
• Give a contractor a one-time, audited shell session
• Ask an AI agent to check load, ports or Docker status

Deploy

• Manual

  Fork the repository, create a Worker in Workers & Pages by importing the fork from GitHub, and set the build command to pnpm run build:frontend. Add login and Turnstile settings afterwards as Worker variables and secrets.

  Docs

Setup is a dashboard import of a fork with one build command. Signing in and Turnstile each need extra Worker variables, and GitHub login needs an OAuth app.

What it needs to run

• Durable ObjectsSSHSessionDO, SSHShareDO, UserDBDO

Good to know

Anonymous SSH is enabled by default. On a public instance, set REQUIRE_GITHUB_AUTH=true and an allowlist of GitHub user IDs so the Worker cannot be used as an open SSH proxy. REQUIRE_GITHUB_AUTH ships in wrangler.toml, so a value set only in the dashboard is overwritten on the next deploy. Saving a directly reachable server sends its host to the third-party IPinfo service to pick a Durable Object region. If a phone's OS discards the page, the shell cannot be resumed. The main README is in Chinese, with an English README alongside; the UI ships English, Simplified Chinese and Traditional Chinese.

Cost on Cloudflare

Where this comes from

• Repositoryhttps://github.com/newbietan/CloudSSH