If you are on Linux, you can use the distribution-agnostic AppImage for a portable-like experience. Key Feature: Remuxing (Lossless Rebuilding)
Unlike traditional video editors that "re-encode" video (which takes time and loses quality), MKVToolNix can rebuild a Matroska container almost instantly. This allows you to: Download mkvt00lnix64portable rar
Instantly strip away unwanted audio languages or subtitle tracks to save space. If you are on Linux, you can use
Matroska tools for Linux/Unix and ... - MKVToolNix Downloads If you are on Linux
Combine multiple video, audio, or subtitle files into a single MKV file without any quality loss.