Legal & Licenses

Open Source Licenses

This application uses the following open source software and libraries. We are grateful to the developers and communities who have contributed to these projects.

cdgraphics (v7.0.0)

License: ISC

Description: A fast, flexible CD+Graphics (CD+G) renderer for karaoke graphics. Handles the obscure CD+G bitwise instruction set.

Repository: https://github.com/bhj/cdgraphics

Copyright: © radrootllc

idb (v8.0.3)

License: ISC

Description: A small wrapper that makes IndexedDB usable with promises. Used for storing large blobs (songs) in the browser.

Repository: https://github.com/jakearchibald/idb

Copyright: © 2016-2020 Jake Archibald

JSZip (v3.10.1)

License: MIT OR GPL-3.0-or-later

Description: A JavaScript library for creating, reading and editing .zip files. Used for standard, reliable client-side unzipping of karaoke files.

Repository: https://github.com/Stuk/jszip

Copyright: © 2009-2016 Stuart Knightley

Next.js (v16.0.0)

License: MIT

Description: The React Framework for Production.

Repository: https://github.com/vercel/next.js

Copyright: © 2024 Vercel, Inc.

React (v19.2.0)

License: MIT

Description: A JavaScript library for building user interfaces.

Repository: https://github.com/facebook/react

Copyright: © 2024 Meta Platforms, Inc. and affiliates

Firebase (v11.10.0)

License: Apache-2.0

Description: Firebase JavaScript SDK for web applications.

Repository: https://github.com/firebase/firebase-js-sdk

Copyright: © Google LLC

Stripe (v18.1.0)

License: MIT

Description: Stripe API library for Node.js and browser environments.

Repository: https://github.com/stripe/stripe-node

Copyright: © Stripe, Inc.

Material-UI (@mui/material v7.2.0)

License: MIT

Description: React components for faster and easier web development.

Repository: https://github.com/mui/material-ui

Copyright: © 2014-2024 MUI

Framer Motion (v12.6.1)

License: MIT

Description: A production-ready motion library for React.

Repository: https://github.com/framer/motion

Copyright: © Framer BV

Axios (v1.9.0)

License: MIT

Description: Promise based HTTP client for the browser and node.js.

Repository: https://github.com/axios/axios

Copyright: © 2024 Matt Zabriskie & Collaborators

Leaflet (v1.9.4)

License: BSD-2-Clause

Description: An open-source JavaScript library for mobile-friendly interactive maps.

Repository: https://github.com/Leaflet/Leaflet

Copyright: © 2010-2024, Vladimir Agafonkin, © 2010-2011, CloudMade

date-fns (v4.1.0)

License: MIT

Description: Modern JavaScript date utility library.

Repository: https://github.com/date-fns/date-fns

Copyright: © 2024 Sasha Koss and Lesha Koss

Zod (v4.1.4)

License: MIT

Description: TypeScript-first schema validation with static type inference.

Repository: https://github.com/colinhacks/zod

Copyright: © 2020 Colin McDonnell

Sentry (@sentry/nextjs v10.30.0)

License: MIT

Description: Sentry SDK for Next.js applications.

Repository: https://github.com/getsentry/sentry-javascript

Copyright: © Sentry

Tailwind CSS (v3.4.3)

License: MIT

Description: A utility-first CSS framework for rapidly building custom user interfaces.

Repository: https://github.com/tailwindlabs/tailwindcss

Copyright: © 2024 Tailwind Labs, Inc.

ESLint (v9)

License: MIT

Description: A tool for identifying and reporting on patterns found in ECMAScript/JavaScript code.

Repository: https://github.com/eslint/eslint

Copyright: © OpenJS Foundation

License Information

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.

ISC License

Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Apache License 2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

BSD 2-Clause License

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Web Audio API

License: Browser API (W3C Standard)

Description: A high-level JavaScript API for processing and synthesizing audio in web applications. Provides low latency, precise timing, and mixing capabilities for audio playback.

Specification: https://www.w3.org/TR/webaudio/

Copyright: © W3C (World Wide Web Consortium)

Additional Dependencies

This application uses many additional open source libraries and dependencies. The libraries listed above represent the major dependencies. For a complete list of all dependencies and their licenses, please refer to the package.json file in the project repository or use tools like `npm list` or `license-checker`.

All dependencies are typically licensed under MIT, ISC, Apache-2.0, or BSD licenses, which are permissive open source licenses. If you have questions about specific dependencies not listed here, please contact us.

Application License

This karaoke web player application is provided as-is. Please refer to the individual library licenses above for their respective terms and conditions.