4DDiG Video Repair vs IntactFile

4DDiG Video Repair is desktop software for Windows and macOS that repairs corrupted, damaged, choppy, jerky, grainy, distorted, fuzzy, or unplayable videos. It supports batch repair across formats including MP4, MKV, AVI, MOV, M4V, WMV, 3G2, 3GP, FLV, MPEG, MTS, MXF, RMVB, and SWF, and users can preview repaired videos before saving. A reference file is required for repair. Its AI enhancer can upscale SD video to HD, HD to 4K, and up to 8K; output above 8K will fail. It can also colorize black-and-white video, with general, anime, and face enhancement models described. AI enhancement or colorization may take 2 to 10 hours depending on the video and computer hardware. Supported sources include cameras, drones, dash cams, hard drives, SD cards, USB devices, PCs, and laptops. A separate free online flow offers upload, automatic repair, preview, and save. Desktop plans start at $35.95/mo, and Windows and Mac purchase pages advertise a 7-day trial with all features.

IntactFile repairs corrupted videos, PDFs, ZIP, RAR and 7z archives, Office documents, JPG and PNG photos, and SQLite databases in a browser tab. Its repair engines rebuild damaged file structures around data that remains, such as indexes or headers, and run on the user's device; the maker says files are not uploaded. Diagnosis is free for each file, so users can see the problem before choosing a repair. Repairs are checked against format rules, and failed repairs are not charged. The Free plan allows 3 repairs per day, with video files up to 50 MB and documents, archives, and photos up to 10 MB. Paid choices include a single repair for €5.90 per once, credit packs, and annual plans: Pro is €4.92 per year and Business is €16.58 per year. Business adds CLI, SDK, and MCP server access; developer repairs require an active Business subscription and Node 22 or later. IntactFile cannot recover overwritten data, video never written to disk, or files containing only zero bytes.