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Open Source Licenses & Attributions

LEGAL NOTICE

This page provides complete attribution and license information for all open-source software components used in Subtitle Studio, ensuring full compliance with all applicable licenses.

Subtitle Studio

Copyright (c) 2026 Subtitle Studio. All Rights Reserved.

This product includes software developed by third parties, including:

WHISPER.CPP

This software uses whisper.cpp (https://github.com/ggerganov/whisper.cpp)

  • Copyright (c) 2022-2024 Georgi Gerganov
  • License: MIT License

whisper.cpp is a high-performance inference of OpenAI's Whisper automatic speech recognition (ASR) model.

OPENAI WHISPER MODEL

This software uses the Whisper model developed by OpenAI.

  • Copyright (c) 2022 OpenAI
  • License: MIT License

Whisper is a general-purpose speech recognition model trained on a large dataset of diverse audio and is also a multi-lingual speech recognition model.

Paper:

"Robust Speech Recognition via Large-Scale Weak Supervision"

Authors: Alec Radford, Jong Wook Kim, Tao Xu, Greg Brockman, Christine McLeavey, Ilya Sutskever

Citation:

@article{radford2022whisper,
  title={Robust Speech Recognition via Large-Scale Weak Supervision},
  author={Radford, Alec and Kim, Jong Wook and Xu, Tao and Brockman, Greg and 
          McLeavey, Christine and Sutskever, Ilya},
  journal={arXiv preprint arXiv:2212.04356},
  year={2022}
}

GGML

This software uses GGML (https://github.com/ggerganov/ggml)

  • Copyright (c) 2023-2024 Georgi Gerganov
  • License: MIT License

GGML is a tensor library for machine learning to enable large models and high performance on commodity hardware.

FFMPEG

This software uses FFmpeg (https://ffmpeg.org/)

  • Copyright (c) FFmpeg team and contributors
  • License: LGPL v2.1 or later / GPL v2.0 or later (depending on build configuration)

FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. FFmpeg binaries are downloaded at runtime and are not statically linked with this software.

Users can replace the FFmpeg binaries with their own builds. See THIRD_PARTY_LICENSES.md for more information.

NODE.JS RUNTIME DEPENDENCIES

This software includes the following npm packages:

FRONTEND FRAMEWORK

React (v19.2.0)

Next.js (v16.0.3)

DESKTOP APPLICATION FRAMEWORK

Electron (v39.2.3)

UI COMPONENTS AND STYLING

Radix UI - React Tooltip (v1.2.8)

Heroicons React (v2.2.0)

Tailwind CSS (v4)

Tailwind Merge (v3.4.0)

TailwindCSS Animate (v1.0.7)

clsx (v2.1.1)

UTILITIES

fluent-ffmpeg (v2.1.3)

opencc-js (v1.0.5)

OpenCC-JS provides Chinese text conversion between Traditional and Simplified Chinese using OpenCC dictionaries.

DEVELOPMENT DEPENDENCIES

TypeScript (v5)

ESLint (v9)

electron-builder (v26.0.12)

concurrently (v9.2.1)

cross-env (v10.1.0)

wait-on (v9.0.3)

esbuild (v0.27.0)

baseline-browser-mapping (v2.9.11)

IMAGE PROCESSING

libvips (via Sharp)

Package: @img/sharp-libvips-darwin-arm64

Used by Next.js for image optimization. Dynamically linked; users can replace with modified versions.

DATA AND RESOURCES

caniuse-lite

Browser compatibility data based on caniuse.com data, created by Alexis Deveria and contributors. (https://caniuse.com/)

FONTS

This software may include the following fonts in the fonts/ directory:

ChillDuanHeiSong

License: Please refer to font file metadata

GenJyuuGothic

GenSekiGothic

GenSenRounded

NaniFont

License: Please refer to font file metadata

Source Han Serif

TYPE DEFINITIONS

This software uses TypeScript type definitions from DefinitelyTyped:

  • @types/node
  • @types/react
  • @types/react-dom
  • @types/fluent-ffmpeg

ADDITIONAL DEPENDENCIES

For a complete list of all dependencies and their licenses, please run:

yarn licenses list

Or refer to the THIRD_PARTY_LICENSES.md file included with this software.

LICENSE COMPLIANCE

This software complies with all applicable open-source licenses:

1. MIT License:

The majority of dependencies use the MIT License, which permits use, modification, and distribution with attribution.

2. LGPL Compliance:

LGPL-licensed components (FFmpeg, libvips) are either:

  • Downloaded at runtime and not statically linked
  • Dynamically linked with the ability for users to replace with their own versions

3. Attribution:

Proper attribution is provided for CC-BY licensed components and all other third-party software.

4. Source Availability:

Source code for all open-source components is available from their respective upstream projects.

ACKNOWLEDGMENTS

We are deeply grateful to all the maintainers and contributors of the open-source projects listed above. Their work has made this software possible.

Special thanks to:

  • Georgi Gerganov for whisper.cpp and GGML
  • OpenAI for the Whisper model
  • The FFmpeg team for their multimedia framework
  • The React, Next.js, and Electron communities
  • All contributors to the npm packages we depend on

CONTACT

For questions about licensing or attribution, please contact: info@articue.io

For more information about third-party licenses, see:

  • THIRD_PARTY_LICENSES.md (detailed license information)
  • LICENSE.md (Subtitle Studio proprietary license)

FULL LICENSE TEXTS

The following section contains the complete text of all open-source licenses used by components in Subtitle Studio. This ensures full legal compliance with attribution requirements.

MIT License

Used by: React, Next.js, Electron, Radix UI, Heroicons, Tailwind CSS, clsx, fluent-ffmpeg, opencc-js, ESLint, electron-builder, concurrently, cross-env, wait-on, esbuild, baseline-browser-mapping, and DefinitelyTyped type definitions.

MIT License

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.

Apache License 2.0

Used by: TypeScript

Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/

TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

1. Definitions.

"License" shall mean the terms and conditions for use, reproduction, and
distribution as defined by Sections 1 through 9 of this document.

"Licensor" shall mean the copyright owner or entity authorized by the copyright
owner that is granting the License.

"Legal Entity" shall mean the union of the acting entity and all other entities
that control, are controlled by, or are under common control with that entity.

"You" (or "Your") shall mean an individual or Legal Entity exercising
permissions granted by this License.

"Source" form shall mean the preferred form for making modifications, including
but not limited to software source code, documentation source, and configuration
files.

"Object" form shall mean any form resulting from mechanical transformation or
translation of a Source form, including but not limited to compiled object code,
generated documentation, and conversions to other media types.

"Work" shall mean the work of authorship, whether in Source or Object form, made
available under the License.

"Derivative Works" shall mean any work, whether in Source or Object form, that
is based on (or derived from) the Work and for which the editorial revisions,
annotations, elaborations, or other modifications represent, as a whole, an
original work of authorship.

"Contribution" shall mean any work of authorship, including the original version
of the Work and any modifications or additions to that Work or Derivative Works
thereof.

2. Grant of Copyright License. Subject to the terms and conditions of this
License, each Contributor hereby grants to You a perpetual, worldwide,
non-exclusive, no-charge, royalty-free, irrevocable copyright license to
reproduce, prepare Derivative Works of, publicly display, publicly perform,
sublicense, and distribute the Work and such Derivative Works in Source or
Object form.

3. Grant of Patent License. Subject to the terms and conditions of this License,
each Contributor hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section) patent
license to make, have made, use, offer to sell, sell, import, and otherwise
transfer the Work.

4. Redistribution. You may reproduce and distribute copies of the Work or
Derivative Works thereof in any medium, with or without modifications, and in
Source or Object form, provided that You meet the following conditions:

(a) You must give any other recipients of the Work or Derivative Works a copy of
    this License; and
(b) You must cause any modified files to carry prominent notices stating that
    You changed the files; and
(c) You must retain, in the Source form of any Derivative Works that You
    distribute, all copyright, patent, trademark, and attribution notices from
    the Source form of the Work; and
(d) If the Work includes a "NOTICE" text file as part of its distribution, then
    any Derivative Works that You distribute must include a readable copy of the
    attribution notices contained within such NOTICE file.

5. Submission of Contributions. Unless You explicitly state otherwise, any
Contribution intentionally submitted for inclusion in the Work by You to the
Licensor shall be under the terms and conditions of this License.

6. Trademarks. This License does not grant permission to use the trade names,
trademarks, service marks, or product names of the Licensor.

7. Disclaimer of Warranty. Unless required by applicable law or agreed to in
writing, Licensor provides the Work on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND.

8. Limitation of Liability. In no event and under no legal theory shall any
Contributor be liable to You for damages, including any direct, indirect,
special, incidental, or consequential damages.

9. Accepting Warranty or Additional Liability. While redistributing the Work or
Derivative Works thereof, You may choose to offer acceptance of support,
warranty, indemnity, or other liability obligations.

END OF TERMS AND CONDITIONS

GNU Lesser General Public License (LGPL)

Used by: FFmpeg, libvips

LGPL Compliance Notice:

Subtitle Studio uses FFmpeg and libvips, which are licensed under the GNU Lesser General Public License (LGPL). In compliance with the LGPL:

  • FFmpeg binaries are downloaded separately at runtime and are NOT statically linked with Subtitle Studio
  • libvips is dynamically linked through the Sharp image processing library
  • Users can replace these components with their own LGPL-compliant builds
  • Complete source code is available from the upstream projects

Creative Commons Attribution 4.0 International (CC BY 4.0)

Used by: caniuse-lite (browser compatibility data)

Attribution:

Browser compatibility data based on caniuse.com data, created by Alexis Deveria and contributors. Licensed under CC BY 4.0.

SIL Open Font License 1.1

Used by: GenJyuuGothic, GenSekiGothic, GenSenRounded, Source Han Serif fonts

SIL OPEN FONT LICENSE Version 1.1

PREAMBLE
The goals of the Open Font License (OFL) are to stimulate worldwide development
of collaborative font projects, to support the font creation efforts of academic
and linguistic communities, and to provide a free and open framework in which
fonts may be shared and improved in partnership with others.

PERMISSION & CONDITIONS
Permission is hereby granted, free of charge, to any person obtaining a copy of
the Font Software, to use, study, copy, merge, embed, modify, redistribute, and
sell modified and unmodified copies of the Font Software, subject to the
following conditions:

1) Neither the Font Software nor any of its individual components, in Original
   or Modified Versions, may be sold by itself.

2) Original or Modified Versions of the Font Software may be bundled,
   redistributed and/or sold with any software, provided that each copy contains
   the above copyright notice and this license.

3) No Modified Version of the Font Software may use the Reserved Font Name(s)
   unless explicit written permission is granted by the corresponding Copyright
   Holder.

4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font Software
   shall not be used to promote, endorse or advertise any Modified Version.

5) The Font Software, modified or unmodified, in part or in whole, must be
   distributed entirely under this license, and must not be distributed under
   any other license.

TERMINATION
This license becomes null and void if any of the above conditions are not met.

DISCLAIMER
THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT, TRADEMARK, OR
OTHER RIGHT. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES.

Last Updated: January 7, 2026

This page is provided to ensure full compliance with all open-source license requirements.