Open Source Licenses & Notices
Standing on the Shoulders of Giants
BookHaven is made possible by open-source libraries published by passionate developers across the global Flutter ecosystem. We gratefully acknowledge and credit these projects below.
1. Open Source Heritage
BookHaven is developed as free, open-source software under permissive licensing. We believe in software transparency, privacy verification, and community-driven longevity.
2. Key Third-Party Packages & Authors
| Package Name | Role in BookHaven | License Type |
|---|---|---|
| pdfx | High-performance native PDF rasterization & rendering engine | Apache-2.0 / MIT |
| epubx | EPUB 2 / EPUB 3 document parser and metadata extractor | MIT License |
| flutter_widget_from_html_core | Rich HTML chapter rendering with custom styling support | MIT License |
| sqflite | Reliable local SQLite database engine for notes & library items | BSD-2-Clause |
| provider | State management framework | MIT License |
| flutter_tts | Bridge to native text-to-speech audio synthesis | MIT License |
| flutter_secure_storage | Hardware-backed key encryption for BYOK AI credentials | BSD-3-Clause |
| audioplayers & record | Audio recording and playback for reading voice notes | MIT / Apache-2.0 |
3. Typical MIT License Notice
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.
4. In-App Complete License Viewer
You can also review the complete, compiled legal notice and full license text for every bundled dependency directly within the application by navigating to Settings → Legal & Privacy → Open Source Licenses → View Full License Notices, which opens Flutter's built-in platform LicensePage.