diff --git a/docs/src/details/xml/editor/license.rst b/docs/src/details/xml/editor/license.rst new file mode 100644 index 0000000000..3146dc0324 --- /dev/null +++ b/docs/src/details/xml/editor/license.rst @@ -0,0 +1,10 @@ +.. include:: external_links.txt +.. _editor_license: + +======= +License +======= + + +LVGL Pro Editor comes with a simple, scalable and royalty-free licensing model that works +for open-source projects, startups, and enterprises alike. `See all plans`_. diff --git a/docs/src/details/xml/xml/license.rst b/docs/src/details/xml/xml/license.rst new file mode 100644 index 0000000000..1d23d2e8a8 --- /dev/null +++ b/docs/src/details/xml/xml/license.rst @@ -0,0 +1,82 @@ +.. _lvgl_xml_license: + +=========== +XML License +=========== + +**Version 1.0 – June 2025** + +**Copyright (c) 2025 LVGL LLC** + + +1. Overview +=========== + +The LVGL XML Specification (the "Specification") defines an XML-based language for describing user interfaces within the LVGL ecosystem. + +This Specification is protected by copyright. It is provided with limited rights of use as outlined below. + +The purpose of this license is to ensure that the Specification remains freely usable for application developers working with LVGL, +while restricting its use in third-party UI editors or design tools. +This protects the long-term integrity and sustainability of the LVGL ecosystem by preventing unlicensed tools +from reusing or replicating the Specification in ways that compete with official LVGL offerings. + + +2. Permitted Usage +================== + +You are permitted to: + +- Use this Specification in **any firmware or embedded application** built on top of the official `LVGL library `_ (MIT-licensed). +- Use the LVGL XML loader freely in accordance with its MIT license. +- Use the Specification with the **LVGL UI editor** and **official LVGL tools such as the CLI or XML loader**. +- Write, load, edit, or generate user interfaces described in the LVGL XML Specification for **internal use** only, including automation or configuration tools used solely inside your organization. +- Create **internal scripts or plugins** that help your own developers use or manage this Specification, as long as these are **not shared outside your organization or made publicly available**. +- Share XML-based UI files within customer firmware or projects that target LVGL-based embedded systems. + + +3. Restrictions +=============== + +You are **not permitted** to: + +- Create, release, or distribute any **UI editor, visual builder, layout designer, code generator, or tool** that reads, writes, or interprets XML files using this Specification — **whether commercial, open-source, or intended for public use, use by customers or partners, or any use outside your own organization** — without written permission from LVGL LLC. +- Implement or extend this Specification in any **software or platform that provides UI creation, editing, or design capabilities similar to those in the LVGL UI Editor**. +- Build public APIs, plugins, converters, or SDKs based on this Specification. +- Share or publish internal tooling built around this Specification. +- Use this Specification into general-purpose design tools or frameworks outside the LVGL ecosystem. + +These restrictions apply regardless of whether the software is commercial, free, or open-source. + +4. Clarification for LVGL Users +=============================== + +You are **explicitly permitted** to: + +- Use XML files with this Specification in your own projects. +- Load XMLs at runtime using LVGL’s XML loader. +- Generate XMLs using the LVGL UI editor. +- Customize XMLs manually or with internal utilities. +- Share LVGL-based projects with XML files as part of a commercial product or firmware. + +If you are building embedded software using LVGL, **this license does not affect you**. +This license only applies to **UI development tools** that **read, generate, or process XML files using this Specification for UI development purposes** in a public or commercial manner. + +You may create **internal tools** to aid development using the Specification, but these must not be published, sold, or shared externally without a license. + + +5. Trademarks +============= + +This license does not grant any rights to use the LVGL name, logo, or trademarks. + + +6. Licensing and Permissions +============================ + +To request permission for broader use or commercial licensing (e.g. using this Specification in your own UI tool), contact: + +**lvgl@lvgl.io** + +All rights not expressly granted herein are reserved by LVGL LLC. +