AI assistant on your server
⌘⇧A opens a chat panel; the AI runs commands on the current session with per-command approval. 22 providers built in — Anthropic, OpenAI, DeepSeek to Ollama. Keys stay in your Keychain.
Features
Everything a terminal veteran expects, all native
Connection reuse & infinite splits
⌘T tabs and ⌘D splits share one SSH channel — no second handshake. Nest splits without limit; exit collapses the pane.
Jump hosts & port forwarding
Chain jump hosts end to end. Local, remote and dynamic SOCKS5 forwarding, plus HTTP and SOCKS5 proxies outbound.
Keys & Touch ID
Generate or import keys; Touch ID guards every private-key use. known_hosts pinning with loud alerts on fingerprint changes.
SFTP file panel
Rides the session connection. Drag-and-drop transfers, edit remote files in your local editor with auto write-back, chmod, bookmarks, previews.
Calm about disconnects
Auto-reconnect with exponential backoff, straight back to your working directory (OSC 7). Exit codes marked inline (OSC 133).
Production guardrails
Per-host alert colors, so prod never looks like staging. Broadcast input across sessions; snippets with {{variables}}.
Keyboard first
Hands stay on the keys
⌘K Quick connect
⌘P Command palette
⌘D Split pane
⌘⌥B Broadcast input
⌘I Server info
⌘F Search
⌘⇧A AI assistant
Every Ctrl combo passes through to the shell — your Emacs and readline habits stay intact.
Themes
Twenty built-in themes, four crafted in-house
Nord, Dracula, Catppuccin, Solarized and friends ship built in — the screenshots above wear Emerald. Four themes are crafted just for Berth:
❯ make deploy
❯ make deploy
❯ make deploy
❯ make deploy
Security
Two hard rules, built into the architecture
-
Secrets stay in Keychain
Passwords, passphrases and private keys live in the macOS Keychain — never written to disk in plain text. JSON backups carry host structure only, no secrets.
-
Everything stays local
No account, no cloud. Your host list lives on your Mac, syncs both ways with ssh_config, and moves with you any time.
FAQ
Common questions
- Which systems are supported?
- macOS 15 Sequoia or later. Ships as a universal binary — Apple Silicon and Intel.
- Where are my passwords stored?
- In the macOS Keychain only, encrypted by the system. Berth has no servers — there is nowhere to upload them to.
- Will my hosts sync across devices?
- CloudKit sync is on the roadmap — still no servers of ours; the data only ever lives in your iCloud.