Open Source Licenses

Last updated: March 13, 2026

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Built on Open Source

ToolZone is built using open source libraries created by developers around the world. We are grateful to every contributor. This page lists all third-party libraries used in production, their license types, and copyright holders.

MIT

MIT License

Permission is granted to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the software. The copyright notice and this permission notice shall be included in all copies or substantial portions of the software.

Astro

Copyright © 2021 Fred K. Schott

MIT
@astrojs/preact

Copyright © 2021 withastro contributors

MIT
@astrojs/sitemap

Copyright © 2021 withastro contributors

MIT
Preact

Copyright © 2015-present Jason Miller

MIT
nanostores

Copyright © 2021 Andrey Sitnik

MIT
@nanostores/preact

Copyright © 2021 Andrey Sitnik

MIT
@nanostores/persistent

Copyright © 2021 Andrey Sitnik

MIT
Tailwind CSS

Copyright © Tailwind Labs, Inc.

MIT
tailwind-merge

Copyright © Dany Castillo

MIT
clsx

Copyright © Luke Edwards

MIT
browser-image-compression

Copyright © 2017-2025 W.Y.

MIT
heic2any

Copyright © 2019 Alex Corvi

MIT
html-to-image

Copyright © 2017-2025 W.Y.

MIT
JsBarcode

Copyright © Johan Lindell

MIT
jsPDF

Copyright © 2010-2025 James Hall; 2015-2025 yWorks GmbH

MIT
pdf-lib

Copyright © 2019 Andrew Dillon

MIT
shiki

Copyright © 2021 Pine Wu

MIT
sonner

Copyright © 2023 Emil Kowalski

MIT
QRCode.js

Copyright © Sangmin, Shim

MIT
ISC

ISC License

Functionally equivalent to the MIT license. Permission is granted to use, copy, modify, and distribute the software. The copyright notice and this permission notice shall be included in all copies.

lucide-preact

Copyright © 2013-2026 Cole Bemis (Feather); 2026 Lucide Contributors

ISC
lucide-astro

Copyright © 2013-2026 Cole Bemis (Feather); 2026 Lucide Contributors

ISC
Apache 2.0

Apache License 2.0

Licensed under the Apache License, Version 2.0. You may obtain a copy of the License at 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.

Apache-2.0
class-variance-authority

Copyright © Joe Bell

Apache-2.0
OFL 1.1

SIL Open Font License 1.1

The fonts are licensed under the SIL Open Font License, Version 1.1. This license allows the fonts to be used, studied, modified, and redistributed freely as long as they are not sold by themselves. See scripts.sil.org/OFL for details.

Inter

Copyright © 2016 The Inter Project Authors (Rasmus Andersson)

OFL-1.1

MIT License Text

MIT License

Copyright (c) [year] [copyright holders]

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.