Windows & macOS · Mobile coming soon

SSH, without the clutter.

Rexmius is a fast, focused SSH client. Save your servers once, open them in tabs, and get everything back on any computer — end-to-end encrypted with a password only you know.

Windows 10 & 11 (64-bit) · macOS 12 or later on Apple Silicon and Intel

Rexmius with three SSH sessions open in tabs, saved hosts grouped by Production, Staging and Personal in the sidebar, and a synced cloud account.
WindowsAvailable
macOSAvailable
AndroidComing soon
iOSComing soon

Features

Everything you reach for. Nothing you don't.

Built for people who live in terminals: the essentials are one click away, and the rest stays out of sight.

A tab for every server

Open as many sessions as you like, each with a live status dot. Switch with Ctrl+Tab and reconnect with one click.

Saved hosts, grouped

Name your servers, file them under Production, Staging or anything you like, and find any of them by typing a few letters.

Quick connect

Paste user@host or a whole ssh [email protected] -p 2222 command. Rexmius tries your SSH agent and keys first.

Passwords, keys and agents

Log in with a password, a private key — passphrase-protected keys included — or your SSH agent. Keyboard-interactive logins work too.

Host key checks

See the server's fingerprint the first time you connect. If a key ever changes, Rexmius stops and warns you instead of carrying on.

SFTP file browser New

Browse a server's files, drag and drop to upload, download folders, rename and delete — with progress, speed and cancel.

End-to-end encrypted sync

Sign in with Google or email and your hosts follow you to every computer — encrypted before they leave your device.

11 themes, your font

Rexmius Dark and Light, Dracula, Nord, Tokyo Night, Catppuccin, Gruvbox, Solarized and more. Pick a font, size, spacing and cursor.

Speaks 11 languages

English, Türkçe, Deutsch, Français, Italiano, Español, Português, Русский, 简体中文, 日本語 and 한국어 — picked from your system automatically.

Encrypted sync

Reinstall your computer. Lose nothing.

Sign in, set a vault password, and your hosts, passwords and keys are back the moment you sign in on a new machine. The cloud only ever sees ciphertext.

  • Encrypted on your device with AES-256-GCM, using a key derived from your vault password with scrypt.
  • Zero knowledge. Your vault password never leaves your computer — nobody, including us, can read or reset it.
  • Windows and Mac together. Add a server on one and it appears on the other; deletions sync too.
  • Optional. No account needed to use Rexmius. Sync is there when you want it.
The vault password dialog: your passwords and keys are locked with this password on your device, and only an unreadable copy goes to the cloud.

Security

Trust is checked, not assumed.

Rexmius treats your servers the way a careful admin would — and keeps your secrets out of reach of everything else.

  • Fingerprints first. New servers show their SHA-256 host key fingerprint before you trust them.
  • Changed keys stop the connection with a clear warning about a possible man-in-the-middle.
  • Secrets in the OS keystore. Saved passwords and keys are locked with Windows DPAPI or the macOS Keychain.
  • Signed updates. New versions come from rexmius.com and are installed only if their Ed25519 signature and checksum match.
The New server dialog showing the server's ed25519 SHA-256 fingerprint with Don't connect, Just this once and Trust and connect buttons.

Make it yours

A terminal that looks the way you like.

Eleven color themes, eight fonts, adjustable size and line spacing, three cursor styles — previewed live as you change them.

Rexmius Dark theme

Download

Get Rexmius.

Free for Windows and macOS. Rexmius keeps itself up to date after you install it.

Windows

Windows 10 & 11 · 64-bit

Available soon .exe installer

macOS · Apple Silicon

M1 and newer · macOS 12+

Available soon .dmg disk image

macOS · Intel

Intel Macs · macOS 12+

Available soon .dmg disk image

Android

Phones and tablets

Coming soon  

iOS & iPadOS

iPhone and iPad

Coming soon  

Mobile apps are on the way. Want a note when they're out? Write to [email protected].

FAQ

Questions, answered.

Do I need an account?

No. Rexmius works fully without one — your hosts are saved on your computer. An account (Google or email) is only needed if you want encrypted sync between computers.

Can you see my passwords or servers?

No. With sync on, everything is encrypted on your device with a key derived from your vault password before it's uploaded. We only store ciphertext we have no way to decrypt. Without sync, nothing leaves your computer at all.

What happens if I forget my vault password?

It can't be recovered — that's the price of real end-to-end encryption, and why Rexmius asks you to confirm you understand before creating a vault. Hosts already saved on your computers are not affected.

Windows shows “Windows protected your PC”. Is that normal?

Yes, SmartScreen shows this for new apps it hasn't seen often yet. Click More info, then Run anyway. You only need to do this once.

Is the Mac app signed?

Yes. Rexmius for Mac is signed with our Apple Developer ID and notarized by Apple, so it opens like any other app: drag it to Applications and double-click. Updates install from inside the app.

How do updates work?

Rexmius checks rexmius.com for new versions and tells you when one is ready. Before installing, it verifies the release's Ed25519 signature and file checksum, and it never installs an older version over a newer one.

When are Android and iOS coming?

We're working on them. Email [email protected] and we'll let you know when they're ready. Your synced hosts will be waiting.