OpenTween is an open source Twitter client with settings that offer many features and flexibility. In 2011 when Tween became closed source, it was created by forking. For the current development status, please refer to OpenTween-dev ML.
This project can also be found on GitHub.
The pre-built binary is available on GitHub.
https://github.com/opentween/OpenTween/releases/tag/OpenTween_v3.7.1
ビルド済みバイナリのリリースは GitHub にて公開しています
https://github.com/opentween/OpenTween/releases/tag/OpenTween_v3.7.1