Open source
Remotion
Make videos programmatically with React: templated ads, explainers and personalized videos rendered from code.
Open-source alternatives to WaveXML
WaveXML is an auto-syncs camera footage with separate audio (Zoom, Sound Devices) by sound and exports XML for Resolve, Premiere and Final Cut, for video editors. Free Mac and Windows beta. 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: convert with video. Video sells, but filming every ad by hand doesn't scale. Modern teams template their videos, generate variants, and test what actually converts.
Also open source in Convert with video 9
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
MoneyPrinterTurbo
Generates short videos from a topic or keyword with an automated AI workflow (script, footage, voice, subtitles).
Open source
Wan 2.1
Open large-scale video generation models (text-to-video and image-to-video).
Open source
ComfyUI
Node-based GUI and API for image and video diffusion models; the standard for repeatable generative pipelines.
Open source
Coqui TTS
Deep-learning text-to-speech toolkit for voiceovers.
Open source
OpenVoice
Instant voice cloning model for consistent narration across videos.
Open source
Orkas
Local-first, MIT-licensed desktop AI team for small businesses to turn project files into reports, listing copy, images and video, with managed models or their own supported provider.
Hosted vs open source: what changes
Open source swaps a subscription for setup time. WaveXML is hosted, supported and updated for you; with the tools below you (or someone you hire) install, update, back up and secure them. 8 of the 9 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.