FantyzoFantyzo is Copyright (c) 2026 Imagine Foundry and is licensed under the Fantyzo End User License and Usage Agreement (EULA.txt). Fantyzo includes or uses the following third-party software, each under its own license. Nothing in the Fantyzo EULA restricts your rights under these licenses.
Qt 6 and PySide6 (Qt for Python)
Copyright (c) The Qt Company Ltd. and other contributors. License: GNU Lesser General Public License v3 (LGPL-3.0). Fantyzo uses the Qt and PySide6 libraries unmodified, as separate shared library files in the Fantyzo program folder. You may replace them with your own compatible versions. Source code: https://download.qt.io/official_releases/ https://code.qt.io/cgit/pyside/pyside-setup.git/ License text: https://www.gnu.org/licenses/lgpl-3.0.txt
Python
Copyright (c) Python Software Foundation.
License: Python Software Foundation License. https://docs.python.org/3/license.html
requests, urllib3, idna, charset-normalizer
requests: Apache License 2.0. urllib3: MIT License. idna: BSD 3-Clause License. charset-normalizer: MIT License. Source code and license texts: https://pypi.org/
certifi
License: Mozilla Public License 2.0 (MPL-2.0).
Source code: https://github.com/certifi/python-certifi
PyInstaller bootloader
License: GNU General Public License v2 with the PyInstaller bootloader exception, which permits its use in programs under any license.
Source code: https://github.com/pyinstaller/pyinstaller
FFmpeg (Windows version of Fantyzo only)
The Windows version of Fantyzo includes an unmodified FFmpeg program (ffmpeg\ffmpeg.exe), built by gyan.dev, that Fantyzo runs as a separate program to record video. This FFmpeg build includes the x264 encoder and is licensed under the GNU General Public License v3 (GPL-3.0). See
FFmpeg-LICENSE.txt in this folder.
Source code: https://ffmpeg.org/download.html
Build details: https://www.gyan.dev/ffmpeg/builds/ The corresponding source code for the included FFmpeg build is also available from Imagine Foundry on request.
The Linux version of Fantyzo does not include FFmpeg; it uses the FFmpeg package supplied by your Linux distribution.