Legal

Open Source Notices

Third-party components used by Captn, with dependency categories and license links. Last updated 2026-07-04.

faster-whisper

Speech-to-text dependency.

MIT

License: MIT Link: Project

CTranslate2

Machine-learning runtime dependency.

MIT

License: MIT Link: Project

Hugging Face Hub / Tokenizers

Machine-learning tooling dependency.

Apache-2.0

License: Apache-2.0 Link: Project

ONNX Runtime

Machine-learning runtime dependency.

MIT

License: MIT Link: Project

PyAV

Media processing dependency.

BSD-style

License: BSD-style Link: Project

tqdm

Utility dependency.

MPL-2.0 and MIT

License: MPL-2.0 and MIT Link: Project

OpenAI Whisper

Speech-to-text dependency.

MIT

License: MIT Link: Project

pyannote.audio

Speaker diarization dependency.

License varies by component

License: License varies by component Link: Project

PyTorch

Machine-learning runtime dependency.

BSD-3-Clause

License: BSD-3-Clause Link: Project

NumPy

Numerical computing dependency.

BSD-style

License: BSD-style Link: Project

Numba

Acceleration dependency.

BSD

License: BSD Link: Project

FFmpeg

Media processing dependency. License depends on build configuration.

LGPL / GPL depending on build flags

License: LGPL / GPL depending on build flags Link: Project

SubtitlesOctopus / libass

Subtitle rendering dependency.

LGPL-2.1 and bundled permissive notices

License: LGPL-2.1 and bundled permissive notices Link: Project

Remotion

Video rendering dependency.

Remotion License

License: Remotion License Link: Project

React / React DOM

Frontend rendering dependency.

MIT

License: MIT Link: Project

Twemoji

Emoji artwork dependency.

CC BY 4.0

License: CC BY 4.0 Link: Project

FastAPI

Backend framework dependency.

MIT

License: MIT Link: Project

Uvicorn

Web server dependency.

BSD-3-Clause

License: BSD-3-Clause Link: Project

Jinja2

Templating dependency.

BSD-3-Clause

License: BSD-3-Clause Link: Project

Pillow

Image processing dependency.

HPND

License: HPND Link: Project

fontTools

Font tooling dependency.

MIT

License: MIT Link: Project

Redis / RQ

Background processing dependency.

MIT / BSD

License: MIT / BSD Links: Redis Python Client, RQ

argon2-cffi

Authentication/security dependency.

MIT

License: MIT Link: Project

Sentry SDK

Error monitoring dependency.

MIT

License: MIT Link: Project

Tailwind CSS / PostCSS / Autoprefixer

CSS tooling dependency.

MIT

License: MIT Link: Project

Browserslist / caniuse-lite

Browser compatibility data dependency.

CC BY 4.0

License: CC BY 4.0 Link: Project