TeamSpeak is a low‑latency, high‑quality voice‑over‑IP (VoIP) solution widely used by gamers, communities, and businesses for real‑time voice communication. Below is a curated list of 20 free (or open‑source) alternatives that provide comparable voice‑chat capabilities, many with additional features such as video, screen‑sharing, or integrated messaging.
Get targeted exposure with custom position pinning and highlighted placement.
Free platform with persistent voice channels, low latency, screen‑share, and robust community tools.
Open‑source, low‑latency VoIP client focused on high‑quality audio and positional sound for gamers.
Classic free voice chat client offering low‑lag audio and simple server administration.
Provides up to 40‑minute group voice/video meetings; popular for its ease of use.
Open‑source, browser‑based video‑conference tool that also supports high‑quality voice calls without registration.
Free, decentralized messenger with built‑in VoIP and video calls; fully open source.
Group voice chat feature inside Telegram groups and channels; completely free and mobile‑first.
Google’s browser‑based meeting platform offering voice‑only calls and up to 100 participants.
Team collaboration hub with built‑in voice calls for up to 15 participants per call.
Open‑source team chat with optional VoIP integration (WebRTC) for voice conversations.
Free, decentralized, end‑to‑end encrypted VoIP and video calling platform.
Scalable open‑source telephony platform that can be configured for group voice chat.
Widely used open‑source PBX that can host conference bridges for free voice communication.
Browser‑based meeting rooms with voice‑only mode; free for up to 4 participants.
Free public Murmur servers let you use Mumble without self‑hosting; many community‑run servers exist.