Legal
Open Source Notices
Third-party software notices and license references. Last updated 2026-05-08.
Creative Asset Notes
Generated marketing assets are not listed as open-source software dependencies, but their source is recorded here for production reference.
- Homepage image assets: Generated with ChatGPT for Marketing homepage visuals.
- Homepage video asset: Generated with Higgsfield for Marketing homepage video preview.
faster-whisper
Default local speech-to-text transcription backend
- Project: https://github.com/SYSTRAN/faster-whisper
- Used for: Default local speech-to-text transcription backend
Notice / License Reference
faster-whisper is the default local ASR backend for this app. It runs Whisper-compatible models through CTranslate2 and depends on several runtime libraries such as CTranslate2, Hugging Face Hub, Tokenizers, ONNX Runtime, PyAV, and tqdm. Preserve notices for faster-whisper and its runtime dependencies, and review PyAV/FFmpeg binary linkage separately.
CTranslate2
Inference engine used by faster-whisper
- Project: https://github.com/OpenNMT/CTranslate2
- Used for: Inference engine used by faster-whisper
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
Hugging Face Hub / Tokenizers
Model download and tokenization runtime used by faster-whisper
- Project: https://github.com/huggingface
- Used for: Model download and tokenization runtime used by faster-whisper
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
ONNX Runtime
Runtime dependency used by faster-whisper
- Project: https://onnxruntime.ai/
- Used for: Runtime dependency used by faster-whisper
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
PyAV
FFmpeg library bindings used by faster-whisper media decoding
- Project: https://github.com/PyAV-Org/PyAV
- Used for: FFmpeg library bindings used by faster-whisper media decoding
Notice / License Reference
PyAV is a Python binding layer around FFmpeg libraries. Preserve PyAV notices and review the linked FFmpeg libraries/build flags separately.
tqdm
Progress helper dependency used by faster-whisper
- Project: https://tqdm.github.io/
- Used for: Progress helper dependency used by faster-whisper
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
OpenAI Whisper
Speech-to-text transcription fallback backend
- Project: https://github.com/openai/whisper
- Used for: Speech-to-text transcription fallback backend
Notice / License Reference
MIT License Copyright (c) 2022 OpenAI Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
PyTorch
Model runtime for OpenAI Whisper fallback inference
- Project: https://pytorch.org/
- Used for: Model runtime for OpenAI Whisper fallback inference
Notice / License Reference
BSD-3-Clause style licenses generally allow commercial use, modification, and redistribution. The main obligations are: - keep the copyright notice - keep the license/disclaimer text - do not use contributor names to endorse derived products without permission
NumPy
Numerical array operations in the ML/audio stack
- Project: https://numpy.org/
- Used for: Numerical array operations in the ML/audio stack
Notice / License Reference
NumPy is distributed under a BSD-style license and is commonly used in commercial software. Some binary distributions bundle additional runtime libraries with their own notices. If you distribute binaries, keep those bundled notices available. For hosted SaaS use, this is usually a notice/attribution issue, not a blocker to selling the product.
Numba
JIT acceleration used by the local transcription stack
- Project: https://numba.pydata.org/
- Used for: JIT acceleration used by the local transcription stack
Notice / License Reference
BSD-3-Clause style licenses generally allow commercial use, modification, and redistribution. The main obligations are: - keep the copyright notice - keep the license/disclaimer text - do not use contributor names to endorse derived products without permission
FFmpeg
Audio extraction, waveform generation, preview rendering, exports
- Project: https://ffmpeg.org/
- Used for: Audio extraction, waveform generation, preview rendering, exports
Notice / License Reference
FFmpeg is generally available under LGPL-2.1-or-later. If FFmpeg is built with --enable-gpl (or linked with GPL-only components), that FFmpeg build is GPL-2.0-or-later instead. See: https://ffmpeg.org/legal.html
SubtitlesOctopus / libass WebAssembly
Browser ASS subtitle preview rendering
- Project: https://github.com/libass/JavascriptSubtitlesOctopus
- Used for: Browser ASS subtitle preview rendering
Notice / License Reference
The bundled browser ASS preview renderer includes SubtitlesOctopus/libass WebAssembly assets and embedded notices for LGPL-2.1, BSD-2-Clause, ISC, MIT-style, and related permissive components. Preserve the bundled notice text and verify the exact packaged build before making final redistribution or compliance statements.
FastAPI
Python web application framework
- Project: https://fastapi.tiangolo.com/
- Used for: Python web application framework
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
Uvicorn
ASGI server for the FastAPI app
- Project: https://www.uvicorn.org/
- Used for: ASGI server for the FastAPI app
Notice / License Reference
BSD-3-Clause style licenses generally allow commercial use, modification, and redistribution. The main obligations are: - keep the copyright notice - keep the license/disclaimer text - do not use contributor names to endorse derived products without permission
Jinja2
Server-rendered HTML templates
- Project: https://jinja.palletsprojects.com/
- Used for: Server-rendered HTML templates
Notice / License Reference
BSD-3-Clause style licenses generally allow commercial use, modification, and redistribution. The main obligations are: - keep the copyright notice - keep the license/disclaimer text - do not use contributor names to endorse derived products without permission
Pillow
Image processing helpers for media and font workflows
- Project: https://python-pillow.org/
- Used for: Image processing helpers for media and font workflows
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
fontTools
Font metadata inspection and static font instance generation
- Project: https://fonttools.readthedocs.io/
- Used for: Font metadata inspection and static font instance generation
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
Redis Python Client
Redis queue connectivity
- Project: https://github.com/redis/redis-py
- Used for: Redis queue connectivity
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
RQ
Redis-backed background job queue
- Project: https://python-rq.org/
- Used for: Redis-backed background job queue
Notice / License Reference
BSD-3-Clause style licenses generally allow commercial use, modification, and redistribution. The main obligations are: - keep the copyright notice - keep the license/disclaimer text - do not use contributor names to endorse derived products without permission
argon2-cffi
Password hash verification and migration
- Project: https://argon2-cffi.readthedocs.io/
- Used for: Password hash verification and migration
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
Sentry SDK
Optional backend error monitoring
- Project: https://github.com/getsentry/sentry-python
- Used for: Optional backend error monitoring
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.
Tailwind CSS / PostCSS / Autoprefixer
CSS build tooling
- Project: https://tailwindcss.com/
- Used for: CSS build tooling
Notice / License Reference
This component is distributed under a permissive open-source license. The practical obligation is to preserve the copyright notice, license text, and disclaimer where required by that license.