Stellar Repair for Photo vs Untrunc

Stellar Repair for Photo is a desktop application for repairing corrupt or damaged JPEG/JPG and other photo files on Windows and macOS. It repairs files locally and can process multiple photos in one operation. The Windows format list includes JPEG, RAW, TIFF, HEIC, MxPEG, and numerous camera formats. For severely corrupt JPEG files, Advanced Repair uses a sample JPEG from the same camera as the damaged file. The free evaluation download lets users preview repaired photos, but registration is required to save them. The product FAQ describes the software as read-only, so it does not edit or modify JPEG files. It also states that the Windows software cannot repair compressed JPEG files and may fail if a JPEG marker is missing. Listed plans are Standard at $39.99 a year, Professional at $59.99 a year, and Premium at $69.99 a year. The listed license is for a single system, and the FAQ states that purchases have a 30-day money-back guarantee.

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.