MKV Optimizer

The MKV Optimizer takes a source MKV file and produces a smaller MKV by re-encoding or remuxing streams under user-defined constraints. It supports multi-track inputs, allows selective retention or removal of tracks, and applies bitrate or quality targets to balance size and quality. Conceptually, it allocates a bitrate budget across video and audio tracks, performs one- or two-pass encoding, and preserves timing and metadata when possible. The tool is valuable for content creators, post-production teams, and archival managers who need faster distribution, reduced storage, or bandwidth-friendly assets without re-authoring from scratch. Unique value lies in per-track bitrate control, advanced presets, batch processing, and compatibility with common codecs while maintaining essential streams. Core features include input validation, optional subtitle handling, metadata preservation, and an API-friendly batch queue. Typical use cases involve compressing a 1080p MKV with multiple audio tracks for streaming, or shrinking archives for long-term storage, while maintaining the ability to remap or disable tracks as needed.