Stellar Repair for Video fixes broken MP4s by rebuilding the file structure, correcting indices, and repairing corrupted frames. You can fix your unplayable MP4 files using either the downloadable desktop software or the cloud-based web tool. Method 1: Using the Desktop Software
The desktop application is available for both Windows and Mac. It allows you to process multiple videos at the same time without any file size limits.
Download and Launch: Install the program from the Stellar Video Repair Product Page.
Add Corrupted Files: Click Add Videos on the main dashboard to select your broken MP4 files.
Execute Repair: Click the Repair button to let the software automatically fix the index and container issues.
Preview and Save: Double-click the file to review it, then select Save Repaired Files to export the working MP4 to your preferred directory. Method 2: Using the Online Web Tool
If you do not want to install software, you can fix files directly in your web browser.
Visit the Portal: Go to the Stellar Online Video Repair Tool.
Upload Video: Drag and drop your broken MP4 file (supports up to 5GB per file).
Process and Download: Wait for the AI-powered server to mend the stream, preview the playback, and download the finished clip. Fixing Severely Damaged Videos (Advance Repair)
If your MP4 file is deeply corrupted—such as a file from a crashed drone or dashcam—a standard scan might fail. You can use the Advance Repair feature to fix it:
Provide a Sample File: Upload a working, uncorrupted MP4 file.
Match the Source: The sample must be recorded on the same device with the same settings as the broken video.
Structure Matching: Stellar uses the working sample’s header metadata to reconstruct the missing data layout of the broken MP4. Free Video Repair Online: Fix Corrupt MP4, MOV, AVI Videos
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