As of 2025-05-29, this project can be found here. A GUI for mkvextract utility (part of MKVToolNix) which incorporates most (if not all) functionality of mkvextract and mkvinfo utilities.
mkvinfo allows one to get information about the tracks in Matroska & WebM files. mkvextract can extract tracks from Matroska & WebM files to other formats. mkvpropedit can edit properties such as header and chapter information or attachments witho
Download gMKVExtractGUI 2.11.1 - A mkvextract GUI in MKVToolnix that enables you to extract tracks, attachments or tags from MKV files and save them in various formats