Tephro

What it does

Text

Channels, threads, replies, reactions, search, file uploads, link previews, encrypted direct messages.

Voice

Channels you drop into. Noise suppression, push-to-talk, a volume for every person.

Video

Cameras in layers, so each viewer gets the size their connection and window can use.

Screen sharing

A screen or one window, up to 60 fps, with the sound of the applications you pick.

One server binary, nothing else to install
Works on a bare IP, no domain needed
No central service, no telemetry
Keys, not passwords
Roles, invites and moderation built in
AGPL-3.0

What it looks like

The Tephro client inside a server: channels on the left with two people in a voice channel, a conversation with a picture, a mention and a reply in the middle, the member list grouped by role on the right — The desktop client, inside a server.

The server's status view in a terminal: listen address, certificate fingerprint, members online, voice traffic, storage and the recent log — The server's status view, in any terminal: `tephro tui`.

Download

Client 0.5.1

Windows 10 or 11	Tephro Setup 0.5.1.exe
Linux, any distribution	Tephro-0.5.1.AppImage
Debian, Ubuntu, Mint	tephro-client_0.5.1_amd64.deb
Fedora, openSUSE	tephro-client-0.5.1.x86_64.rpm
Arch	tephro-client-0.5.1-1-x86_64.pkg.tar.zst
macOS	Not packaged yet

Server 0.4.1

Linux, PC or VPS (x86-64)	tephro-0.4.1-linux-amd64
Linux, ARM (Raspberry Pi 4 or 5, 64-bit)	tephro-0.4.1-linux-arm64
Windows	tephro-0.4.1-windows-amd64.exe
macOS, Apple Silicon	tephro-0.4.1-macos-arm64
macOS, Intel	tephro-0.4.1-macos-amd64

Not sure which Linux build? uname -m prints x86_64 or aarch64 (ARM). Every file is listed in a signed SHA256SUMS (client, server); the key's fingerprint is 3174 0E3B 30C6 597B 5578 FE09 A760 51A5 9D84 E725, and the server guide has the check. Installers are not code-signed yet, so Windows shows an unknown-publisher warning. Older versions are on the releases page.

Quick start

Run a server

Download the server and start it. The first run asks a few questions.
```
chmod +x tephro-0.4.1-linux-amd64
./tephro-0.4.1-linux-amd64
```
Open TCP 443 and UDP 443 to the machine.
Register in the client with the owner link it printed. You are the owner.
Invite people, one link each, from the client or the shell.
```
tephro admin invite
```

The full server guide

Join a server

Install the client.
Click the tephro:// invite link you were given, or paste it into Add a server.
Pick a name and register. Your key is made on your machine and stays there.

The full member guide · What Tephro keeps on your machine