Whereby offers browser‑based video meetings with a free tier. Below is a curated list of 20 other VoIP platforms that also provide free plans or generous trial tiers for voice, video, and screen‑sharing collaboration.
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Open‑source, no‑account‑required video conferencing that runs in the browser; supports screen sharing, recording, and unlimited participants.
Google’s free video‑calling service (up to 100 participants, 60‑minute limit) integrated with Google Workspace and Calendar.
Popular video‑conferencing tool with a free tier allowing 100‑person meetings for up to 40 minutes and unlimited 1‑on‑1 calls.
Free version includes unlimited chat, audio/video calls for up to 60 minutes, and collaboration on Office‑online documents.
Free plan provides meetings for up to 100 participants, 50 minute limit, screen sharing, and integrated whiteboard.
Classic Microsoft VoIP service offering free video calls, group calls (up to 50 participants), and instant messaging.
Gaming‑focused chat platform that also provides free voice and video channels with screen sharing for up to 25 participants.
Open‑source web conferencing designed for online learning; supports real‑time sharing of audio, video, slides, and chat.
Free tier allows up to 3 participants per meeting, screen sharing, and integration with Zoho’s productivity suite.
Simple, browser‑based video chat with no sign‑up required; supports up to 6 participants in a room.
Free conferencing with unlimited participants, HD audio, screen sharing, and a dial‑in number for phone users.
Free plan offers up to 1,000 participants, 30‑minute meeting limit, and dial‑in numbers in multiple countries.
Free 14‑day trial provides full‑feature video meetings (up to 250 participants) with screen sharing and recording.
Free tier includes unlimited video meetings for up to 100 participants, HD audio, and integration with calendar apps.
Free trial gives access to 8x8 Video Meetings with up to 100 participants, screen sharing, and secure encryption.
Privacy‑focused messenger offering end‑to‑end encrypted voice and video calls, free on mobile and desktop.
Free VoIP app for voice, video calls, and group chats; supports up to 20 participants in a video call.
Secure messaging platform with free voice and video calls, group calls up to 30 participants, and screen sharing.
Free workspace includes one‑to‑one voice/video calls and screen sharing; paid plans unlock group calls.
Open‑source team communication suite offering free voice/video calls, screen sharing, and self‑hosted deployment.