Discord
Free tierVoice, video and text chat built around communities.
- Low-latency group voice chat
- Organised community servers and channels
- Screen sharing and video calls
4 communication programs worth considering instead of — or alongside — Telegram Desktop.
Voice, video and text chat built around communities.
The privacy benchmark for encrypted messaging.
Ubiquitous video meetings with a usable free tier.
The leading free desktop email client.
Telegram Desktop is a full-featured messaging client with cloud sync across all your devices, very generous file size limits, large group channels and optional end-to-end encrypted secret chats.
It is open source and runs on Windows, macOS, Linux. Below are 4 communication programs that cover the same ground — some open-source, some cross-platform, each free to use.
| Program | Licence | Platforms | Best known for |
|---|---|---|---|
| Discord | Free tier | Windows, macOS, Linux, Android, iOS | Low-latency group voice chat |
| Signal | Open Source | Windows, macOS, Linux, Android, iOS | End-to-end encryption on by default |
| Zoom Workplace | Free tier | Windows, macOS, Linux, Android, iOS | Reliable on low-bandwidth connections |
| Mozilla Thunderbird | Open Source | Windows, macOS, Linux | Unlimited email accounts |
Discord provides persistent community servers with topic channels, low-latency voice chat, screen sharing and video calls. Notable for low-latency group voice chat and organised community servers and channels. Runs on Windows, macOS, Linux, Android, iOS.
Signal provides end-to-end encrypted messaging, voice and video calls by default, collects essentially no metadata, and is run by a non-profit foundation. Notable for end-to-end encryption on by default and minimal metadata collection. Runs on Windows, macOS, Linux, Android, iOS.
Zoom remains one of the most reliable and widely adopted video meeting platforms, with strong performance on poor connections. Notable for reliable on low-bandwidth connections and screen sharing and recording. Runs on Windows, macOS, Linux, Android, iOS.
Thunderbird is a full desktop email client handling unlimited accounts across IMAP, POP and Exchange-compatible services, with an integrated calendar, address book and strong message search. Notable for unlimited email accounts and integrated calendar and contacts. Runs on Windows, macOS, Linux.
2 are fully open source (Signal, Mozilla Thunderbird) — pick one of these if you value auditable code you can self-host. For the widest platform coverage, Discord, Signal, Zoom Workplace run on three or more operating systems.
All 4 are free to download from the publisher's own website, so installing two or three and testing them on your own files is the fastest way to decide — it costs nothing but a few minutes.