Restore.Media vs Untrunc

Restore.Media repairs damaged or unplayable video and audio files through a browser. It scans media tracks and recreates missing or damaged headers, metadata and indexes. Listed formats include MP4, MOV, M4A, M4V, MXF, 3GP, INSV, RSV and MP3. The service says its processing is adapted to particular cameras and supports hundreds of camera models, encoders and recording applications. Files up to 128GB can be uploaded, and users can view a full-length low-resolution preview before paying for an original-quality download. Automatic recovery costs $4.99, paid once per file; the price varies with file size, and there is no subscription. Manual recovery by engineers is also available, with a negotiable quote based on order volume and complexity. The service says uploads are processed automatically and are not viewed unless manual recovery is requested. Users can delete tasks and files; inactive tasks and files are automatically deleted after 7 days. Restore.Media does not repair distortions, freezes or artifacts in video that otherwise plays, and recovery may fail if source video data is corrupted.

Untrunc repairs corrupted or truncated MPEG-4 video files by using a healthy reference clip to rebuild missing or damaged index metadata. It supports MP4, MOV, M4V, and 3GP containers, and leaves raw media data unmodified rather than re-encoding it. The reference must come from the same camera and use the same recording settings as the damaged file. Repairs run offline on local files, with no video uploads or telemetry. There is no file-size limit; streaming mode can handle files larger than available RAM. Windows downloads include a graphical interface and a command-line tool, while other platforms have a command-line workflow. The site describes support for GoPro footage and Sony XAVC, with the anthwlock fork adding compatibility and performance improvements. Optional stretch mode can adjust audio duration to match recovered video. Untrunc is free for personal and commercial use under GPL-2.0. It cannot repair empty files, corrupted raw video data, or non-MPEG-4 containers such as AVI and MKV.