License

Cinder is free and open-source software, released under the MIT License. You are free to use, copy, modify, and redistribute it, including for commercial purposes, as long as the copyright notice and license below are preserved.

Attribution

Cinder is a fork of OpenScreen by Siddharth Vaddem, also MIT licensed. The original recording and editor experience is upstream’s work; Cinder adds a hardware-accelerated export pipeline, auto-zoom on clicks, a keystroke overlay, and smooth-cursor interpolation. Both copyright lines are preserved below and in the NOTICE file.

Bundled components

Cinder bundles ffmpeg and other open-source libraries for recording and encoding. Each of those components is distributed under its own license, which remains in effect.

MIT License

MIT License

Copyright (c) 2025 Siddharth Vaddem (OpenScreen — original work)
Copyright (c) 2026 Anderson Victor (Cinder — modifications and additions)

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.

See the canonical LICENSE file in the repository for the authoritative copy.