Summary
sympathy is free software, released under the gnu lesser general public license, version 3 or any later version (lgpl-3.0-or-later).
- it costs nothing and needs no key.
- you can use it on any number of computers, for any purpose, including commercial work.
- the source code is public.
License
copyright © 2026 ashen one.
this program is free software: you can redistribute it and/or modify it under the terms of the gnu lesser general public license as published by the free software foundation, either version 3 of the license, or (at your option) any later version.
the lgpl is a set of additional permissions on top of the gnu general public license, version 3. the installer places both texts next to the plugin: "sympathy license.txt" and "gpl license.txt". they are also at gnu.org/licenses.
Source
the source code, the build script and the pinned versions of every dependency are at github.com/balt1kaa/sympathy.
if you distribute sympathy, modified or not, you must pass on the same freedoms: keep the license notices, and make the source of your version available under the same license.
Components
sympathy ships with libraries made by others, each under its own license. their texts are installed next to the plugin.
- ffmpeg the lgpl build, as separate dlls that can be replaced with your own build of the same version. "ffmpeg license.txt", "ffmpeg notice.txt".
- cineform sdk by gopro, under the mit license. "cineform license.txt".
Warranty
this program is distributed in the hope that it will be useful, but without any warranty; without even the implied warranty of merchantability or fitness for a particular purpose. see the gnu general public license for more details.
problems and questions go to the issues page on github.