Never lose an SSH session again.
An SSH client whose sessions survive a dropped connection - lock the phone,
change networks, come back to the same shell.
Download · Manual · Changelog · Report a bug · Suggest an idea
Why Termphin
- Persistent sessions. A lightweight helper on the server holds your shell open. Reconnect and pick up right where you left off.
- Clean TUI rendering. Drawn directly by Flutter, not in a web view. htop, vim and other TUIs render without broken box characters.
- Encrypted local vault. Keys and passwords are sealed with AES-256-GCM, under a key your phone's secure hardware holds.
Download
| Platform | Status |
|---|---|
| Android | Google Play, or the APK from Releases |
| iOS | Coming soon |
| macOS, Windows, Linux | Work in progress |
The APK on Releases is signed with a different key than the Google Play build,
so one does not update the other - uninstall first to switch. Each APK comes
with a SHA-256 checksum and a build provenance attestation:
gh attestation verify termphin-<version>.apk -R Termphin/Termphin.
Built for productivity
- Split screen - two sessions side by side in one tab; drag the divider, swap the panes
- Files beside the shell - browse, upload, download and rename over the same connection
- Autocomplete - commands and paths from your own history, suggested as you type
- Fast upload - pick a file and it lands on the server, with its path pasted at the prompt
- A real text editor - syntax highlighting in your terminal colours, find and replace
- Host key pinning - a changed server key is stopped, not waved through
- SSH tunnels - local and remote port forwards, saved on a machine or opened for one session
- Snippets - save a command with arguments and run it on several machines at once
- Key toolbar - Esc, Tab, Ctrl and arrows above the keyboard, in layouts you arrange
- Action dock - a floating button for paste, snippets and fast upload
- Jump hosts - reach machines behind a bastion, the way ProxyJump does
- Fallback addresses - one machine, a LAN and a Tailscale address, whichever answers
- Two-factor sign-in - one-time codes and PAM prompts asked for in the app
- Reconnects on its own - retries until the network is back, keeps what you type meanwhile
- Predictive echo - on a slow link, what you type shows before the server answers
- Connection health - a quiet warning when replies slow down or stop
- 14 color schemes - dark and light themes, with font, size, cursor and padding to match
- Encrypted backups - export everything to one file, sealed with a passphrase
Issues
Before you open an issue, search the existing ones. If yours is already there, add a comment instead. Never paste a private key or password. To hide hostnames and usernames in screenshots, turn on Anonymize in Settings.
Found a vulnerability? Do not open an issue. See SECURITY.md.
Building
flutter pub get flutter run
| Command | |
|---|---|
flutter analyze |
lint |
flutter test |
tests |
dart run slang |
regenerate i18n after editing lib/i18n/strings_en.i18n.json |
scripts/build_release.sh [android|ios] |
release build |
How the app is put together is written down in docs/architecture.
The committed android/app/debug-keystore.jks is the public AOSP debug key and
is meant to be there. Release signing keys are not in this repository.
Contributing
See CONTRIBUTING.md.
Related repositories
- terminal_view - the terminal widget, a fork of xterm
- termphin-agent - the server helper that keeps sessions alive
License
Termphin is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License, version 3 or (at your option) any later version, with the additional terms section 7 of that license allows - chiefly a permission to distribute through app stores.
The name Termphin and its logo are not covered by that license - see the trademark policy. A fork you distribute needs its own name and icon.