License - FlyonUI

FlyonUI’s original code is licensed under the MIT License.

Bundled third-party components are governed by their respective licenses as detailed below.

FlyonUI bundles and redistributes components from Preline UI and daisyUI. These bundled components are essential to FlyonUI’s core JavaScript functionality and are distributed under explicit permission and their respective license terms.

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.

THIRD PARTY LICENSES

FlyonUI bundles and redistributes the following third-party open-source components as part of its core library:

Preline UI (Dual License: MIT and Preline UI Fair Use License)
IMPORTANT: Preline UI is distributed under dual license terms. Users must comply with BOTH the MIT License AND the Preline UI Fair Use License.
- Author: Preline Labs Ltd.
- Website: Preline
- Repository: Github
- Copyright: Copyright (c) 2026 Preline Labs Ltd.
- License Terms: Dual licensed under MIT License AND Preline UI Fair Use License
Scope of Bundled Preline UI Components:
FlyonUI bundles and redistributes the full Preline UI JavaScript source tree, including:
- src/js/plugins/ (entire directory, with modifications)
- preline.js and related build outputs
- preline.d.ts and related type definitions
- variants.css and related assets
- Build and configuration files, including:
  - dts-config.js
  - tsconfig.json
  - webpack.config.js
Usage Notice for Downstream Users:
If your intended use of FlyonUI (which includes bundled Preline UI components) falls outside the scope of Preline UI’s dual license terms, you must contact Preline Labs directly for clarification or permission via https://preline.co.
daisyUI (MIT License)
- Repository: Github
- License: MIT License
Scope of Bundled daisyUI Components:
The following files from daisyUI are bundled and redistributed:
- src/functions/
- src/src/
- src/build.js
- src/index.js

Preline UI MIT License

MIT License

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

Preline UI Fair Use License

Usage Restrictions:

Competing Products: The Software shall not be used to create any product or service that directly competes with Preline UI. A competing product is defined as any software or service that replicates the primary functionalities of Preline UI.
Misuse and Abuse: The Software shall not be used for any activities that are deemed harmful, abusive, or intended to deceive end-users. This includes, but is not limited to, creating malware, engaging in fraudulent activities, or infringing on the rights of others.

Commercial Derivative Works: Users are permitted to create and sell derivative works such as templates, themes, and page builders, provided that:

The derivative works must not be marketed as competing products.
Proper attribution must be given to the original author, including the name “Preline UI” and a link to the original repository.
A clear distinction must be made between the original work and the derivative work, ensuring that users understand the source of each.

Distribution and Sublicensing: Redistribution of the Software in its original or modified form is allowed under the MIT License, with the following additional conditions:

Redistributions must include this Fair Use License in addition to the MIT License.
Redistributions must not remove or alter any licensing information or notices.
Must include clear attribution with a link to the original repository.

Termination: The author reserves the right to terminate the rights granted under this Fair Use License if the user fails to comply with the terms. Upon termination, the user must cease all use and distribution of the Software, and destroy all copies in their possession.
Enforcement and Compliance:

Users who believe that the terms of this Fair Use License have been violated are encouraged to report the violation to the author.
The author reserves the right to take legal action to enforce compliance with this Fair Use License.

daisyUI License

MIT License

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

Summary

FlyonUI Original Code: MIT License (ThemeSelection)
Preline UI (Bundled): Dual License - MIT AND Preline UI Fair Use License (Preline Labs Ltd.)
daisyUI (Bundled): MIT License (Pouya Saadeghi)

Users of FlyonUI must comply with all applicable license terms for bundled components. For questions about Preline UI licensing or usage outside the defined scope, contact Preline Labs directly at https://preline.co.