Termius

Termius + Tailscale + tmux You don’t need to have your laptop in front of you to keep building with Claude Code, Codex, or other AI coding agents. → Run your AI coding agent inside tmux to keep the session alive when you disconnect. → Use Tailscale to securely access your development machine from anywhere, without exposing SSH to the public internet. → Connect with Termius over SSH from your iPhone, iPad, or Android device. Your agent keeps working even when you step away from your laptop. When you want to check the progress, answer a question, or continue working, reconnect from your phone and pick up the same tmux session. Start coding at your desk. Continue on the go.

Paste images and files into Claude Code and other coding agents with the latest version of Termius for iPhone and iPad. Need to show your coding agent a UI bug, design mockup, diagram, or error message? Send it in three ways: → Copy & paste Copy a screenshot or image from any app and paste it directly into your Claude Code session. → Share Use the iOS share sheet to send images or files to your active Termius session. → Drag & drop Drag an image or file from Files, Photos, or another app into your session. However you add them, your AI coding agent sees exactly what you see.

Running Claude Code on a remote server? Here's how to check your prototype from your phone. When you're using a coding agent like Claude Code on a cloud server – DigitalOcean, AWS, Hetzner – your web app runs on localhost:3000 on the server. Not on your phone. Not on your laptop. On the server. → Local port forwarding solves this with a single command: ssh -L 8080:localhost:3000 user@remote-ip → Now http://localhost:8080 on your device points to the remote server's localhost:3000. Tunneled, encrypted, and the remote port never gets exposed to the public internet. No extra setup. Just SSH doing what it's always been able to do. With Termius, you don't even need to remember the command. ✦ Go to Port Forwarding → New Rule → Local and follow the setup wizard. Your forwarding rule is then saved in your encrypted vault and synced across all your desktop and mobile devices. ✦ The next time you want to check your app running on a remote server, simply start the rule and open http://localhost:8080 in Safari or Chrome. A small feature that makes working with remote AI coding agents much more convenient. ☝️ Make sure the local port (8080 in this example) isn't already in use. Otherwise, the port forwarding rule won't start.

This is how SSH keys were meant to work. Device-bound identities. Public keys synced automatically across your servers. No PAM. No password manager. Just an always-up-to-date ~/.ssh/authorized_keys, served from your public SSH ID page.

Bring structure to your terminal work with Workspaces in Termius. Group related sessions into a single, focused environment. Broadcast one command to every session at once. Save it all as a template, and reopen it exactly as you left it. Link to the full article below ↓

Meet SSH ID – Passkeys for SSH. This is a new tool inside Termius that combines the security of device-bound keys with the simplicity of sync. Link to the full article below ↓

known_hosts is one of SSH's defense mechanisms against a man-in-the-middle attack. Often treated like a cookie banner. SSH uses a principle called trust on first use. The first time you connect to a server, its public host key is saved to known_hosts. The client checks the presented key against the stored one on every connection after that. If they don't match, you get a warning. The server has been replaced, the key was rotated, or someone is impersonating the host. Trust on first use was designed when a single user connected from a single machine. It doesn't work for multiple devices and teams. The engineer who provisioned the server can verify the fingerprint. Everyone else can't. Teammates connecting for the first time copy an IP from a shared doc and get the prompt. They click yes. Connecting from a new laptop or phone? Get the prompt. Click yes. Every "yes" is a coin flip on whether you're actually talking to your server. Treating known_hosts right is usually a manual process: the person who trusts the server on the first use shares the fingerprint with the rest of the team. The team then compares it on every device they connect from. Termius does this automatically through encrypted vaults. When one teammate verifies a host, the fingerprint is written to the vault and syncs to every other member and device. Everyone else just connects. No prompt. The only time anyone sees the warning is when the key has actually changed. That's when you sound the alarm.

Learn a few tips and tricks for coding with AI agents in Termius. Whether you’re experimenting with AI agents like Claude Code, Gemini, or OpenCode, or already using them daily, your phone can become a surprisingly capable workstation. Link to the full article below ↓

If you work in the terminal, you probably have a set of commands you run over and over. Checking disk usage, tailing logs, inspecting network interfaces, or restarting services. And every time, there's a chance to make a typo – especially in long, complex commands with multiple flags, paths, or IDs. Termius has two features that fix this: → Snippets Save proven commands once and trigger them from any session – no retyping, no copy-pasting, no digging through shell history. It's always there, always correct. → Snippet Packages For some tasks, you need to run a sequence of commands in a particular order, where the next commands depend on the results of the previous ones. For other tasks, you just need a set of proven commands. That's where Snippet Packages come in – you group related snippets together so the whole set is always in one place.

Once quantum computers become a reality, they will break most of today's encryption. That moment is closer than you might think – and Termius is already prepared. We've added ML-KEM and ML-DSA – two NIST-standardized post-quantum algorithms – to protect both SSH key exchange and authentication against future quantum attacks. Link to the full article below ↓