Open source
Cal.com (open source)
Open scheduling infrastructure: booking pages, round-robin and routing you can self-host.
Alternatives Whisper AI Transcribe
Open-source alternatives to Whisper AI Transcribe
Whisper AI Transcribe is a whisper AI Transcribe is an audio-to-text workspace for teams that turns meetings, recordings, and videos into editable transcripts, summaries, speaker labels, and subtitles. If you would rather own the software, keep data on your own server or avoid per-seat pricing, these open-source tools tackle the same problem: run better meetings. Meetings are where decisions happen and then get forgotten. Capture them automatically and turn them into actions.
Also open source in Run better meetings 6
Open source
Whisper
OpenAI's open speech-recognition model: transcribe calls, meetings and videos.
Open source
WhisperX
Whisper with word-level timestamps and speaker diarization; great for captions.
Open source
whisper.cpp
Fast C/C++ port of Whisper that runs transcription locally on a laptop.
Open source
Jitsi Meet
Open-source video conferencing you can self-host or embed.
Open source
Vexa
Open-source meeting transcription API with auto-join bots for Meet, Teams and Zoom, plus an MCP server.
Hosted vs open source: what changes
Open source swaps a subscription for setup time. Whisper AI Transcribe is hosted, supported and updated for you; with the tools below you (or someone you hire) install, update, back up and secure them. 4 of the 6 with a setup rating here need a developer. Most can also be bought as a hosted cloud plan from the same maintainers, which is a good middle path. Check each licence before you build on it.