Top Free Instant Messaging Software with Integrated Video Calls

Widely used mobile messenger offering end‑to‑end encrypted text, voice, and group video calls (up to 8 participants).

Cloud‑based chat app with secret chats, large group support, and voice/video calls for up to 30 participants.

Privacy‑focused messenger with strong end‑to‑end encryption and one‑to‑one or group video calls (up to 8 participants).

Community‑oriented platform offering text channels, voice rooms, and video calls (up to 25 participants) with screen‑share.

Team collaboration hub with direct messaging, channel chat, and integrated video calls via Slack Calls (up to 15 participants).

Collaboration suite that combines chat, file sharing, and video meetings (up to 60 participants) at no cost.

Popular video‑conferencing service that also provides persistent chat rooms; free tier allows 40‑minute meetings with up to 100 participants.

Web‑based video meeting tool integrated with Google Chat; free users can host meetings up to 60 minutes with up to 100 participants.

Classic Microsoft messenger offering instant chat, voice, and video calls (up to 100 participants) with screen sharing.

Cross‑platform messenger with encrypted text, voice, and group video calls (up to 20 participants).

Asian‑market favorite that combines chat, stickers, and high‑quality video calls (up to 200 participants in group calls).

All‑in‑one Chinese app offering messaging, social moments, and one‑to‑one or group video calls (up to 9 participants).

Messenger platform with text chat, AR stickers, and video calls (up to 50 participants) directly from Facebook.

Instagram’s DM feature that supports text, voice notes, and video calls (up to 4 participants) within the app.

Simple mobile messenger popular with younger audiences, offering text chat and one‑to‑one video calls.

Free group messaging service from Meta with optional video calls via integration with Zoom.

Open‑source Slack alternative that provides self‑hosted chat and can be paired with Jitsi for native video calls.

Self‑hosted communication platform offering chat, file sharing, and built‑in WebRTC video conferencing.

Secure, decentralized messenger built on the Matrix protocol, with integrated voice and video calls via WebRTC.

Open‑source video‑conferencing solution that includes a persistent chat sidebar; can be embedded in other IM tools.

Peer‑to‑peer, fully encrypted messenger offering text, voice, and video calls without central servers.

Business‑grade encrypted messenger with secure group chats and HD video calls (up to 10 participants).

Team chat app with channels, direct messages, and integrated video calls (up to 100 participants) for small teams.

Collaboration platform offering chat, shared to‑dos, and built‑in video conferencing for up to 20 participants.

Simple team messenger with unlimited messages and video calls (up to 10 participants) on the free plan.

Integrated with Google Workspace, provides threaded conversations and direct video calls via Google Meet.

Multimedia messaging app that includes one‑to‑one and group video calls (up to 16 participants) with AR filters.

Apple’s native messaging service offering end‑to‑end encrypted text, audio, and FaceTime video calls for iOS/macOS users.

South Korean messenger with free text chat, stickers, and high‑definition group video calls (up to 50 participants).