100% Free & Open Source
Free Forever. Zero Cloud Fees.
Auto-Caption AI is 100% open-source software. Run AI subtitle generation locally on your hardware with zero subscriptions and zero privacy compromises.
100% Open Source
Open Source Free App
Full-featured desktop studio for creators. 100% free with zero recurring fees.
$0/ forever
- 100% Free & Open Source (AGPL/MIT)
- 100% On-device Whisper AI execution
- All Whisper models (tiny, base, small, medium)
- All 7 active word glow presets
- Interactive drag-and-drop subtitle canvas
- Hardware-accelerated MP4 video rendering
- Export .srt, .vtt, .json, and .ass subtitle tracks
- Zero watermarks & unlimited video length
GitHub Sponsor
Support open-source development and help fund continuous AI model updates.
$5/ month
- Includes full Open-Source Desktop App
- Official GitHub Sponsor badge on repo
- Priority support in Discord & GitHub Discussions
- Early access to experimental subtitle styles
- Direct input on open-source feature roadmap
- Gratitude from open-source video creators worldwide
Enterprise Studio
For agencies and media studios needing custom GPU rendering pipelines.
Custom/ organization
- Everything in Open Source Desktop App
- Multi-GPU parallel batch rendering queue
- Custom font & brand template integration
- Custom Python Whisper model fine-tuning
- Dedicated SLA & enterprise support
- Custom license compliance assistance
100% Transparent Open-Source Codebase
Inspect the Rust Tauri v2 desktop shell and Python FastAPI Whisper AI backend directly on GitHub. Contribute features, report bugs, or build custom extensions.