Best Free Tools to Repair Corrupted Videos Online
I. Introduction
Videos play a vital role in both personal and professional contexts. These capture moments and ideas from cherished family memories to professional presentations. However, video files are not immune to corruption. Video file corruption can occur due to various factors like unexpected interruptions during recording or even improper file transfer. It results in playback issues such as distorted visuals or an inability to open the file entirely. These problems can significantly disrupt important projects and business operations. Repairing corrupted video files has become easier with multiple accessible tools. This guide explores the best free methods on how to repair corrupted MP4 files. We will help you restore and recover your valuable files without spending a penny.
II. Typical Reasons for Video File Corruption
Video File Corruption can disrupt your overall video-watching experience. By understanding the common reasons, you can easily find the solution. Here are some typical reasons for video file corruption:
- Sudden Power Loss During Recording: An unexpected power outage or battery failure can interrupt the recording process. It results in incomplete or corrupted video files.
- Interruptions During File Transfer: Disconnecting a device or system crashes during file transfer can corrupt video files.
- Issues with Storage Media: Using damaged or faulty storage devices can cause video files to become unreadable.
- Software Glitches: Errors in recording or editing software can lead to incomplete or corrupted files. It is particularly important if the application crashes or encounters bugs.
- Malware Infections: Malicious software can alter or damage video files stored on your computer or storage device.
III. Methods to Repair Corrupted Video Files
A. Method 1: Using a Free Online Service
EaseUS Video Repair is an advanced tool designed to address a wide range of video file issues. It can efficiently repair any issue with corrupted videos. This tool is AI-powered and repairs video files corrupted during recording or editing. The tool includes AI Automatic Video Repair which employs advanced algorithms to fix issues. The repair process is secure and preserves the privacy and integrity of uploaded files. EaseUS also offers advanced repair options for users seeking enhanced features. You can repair larger file sizes and fix complex issues like metadata loss or blurry visuals. The free online tool ensures reliable and safe video restoration for cherished memories or professional content.
Features
- AI Automatic Video Repair: Utilizes advanced AI algorithms to repair corrupted videos efficiently without requiring manual intervention.
- Support for Multiple Video Formats: Repairs a wide range of popular video formats to ensure compatibility across various devices and platforms.
- Retention of Original Quality: Restores damaged videos without compromising their clarity, colors, or overall quality. It can preserve the original integrity of the file.
- Device and Brand Versatility: Fixes videos from leading camera brands (Canon, Nikon, GoPro, DJI), mobile devices, and other recording equipment. It serves as a versatile tool for all users.
Steps to Use
Follow these steps to repair corrupted video files using EaseUS Video Repair:
Step 1. Visit the EaseUS Free Online Video Repair webpage.
Step 2. Click the "Upload Video" button and select the video file. You can upload a sample video recorded with the same device and settings as the corrupted file.

Click-upload-video-EaseUS
Step 3. Enter your email to get the repaired video and select "Start Repairing."

Start-repairing-EaseUS
Step 4. After the repair process is completed, you can preview the fixed video to ensure the quality and resolution have been restored.

Preview-video-EaseUS-Video-Repair
Step 4. Once satisfied, download the repaired file to your device. Your video is now ready to use, free from glitches or errors.
These steps make the EaseUS Free Online Video Repair Tool accessible to anyone.
B. Method 2: VLC Media Player
VLC Media Player is a free multimedia player offering powerful features. It supports viewing and editing of all audio and video file formats. Its primary function is as a media player. VLC also offers advanced features like playing incomplete or partially downloaded videos and live streaming. One of VLC’s standout applications is its ability to repair corrupted video files. Its built-in video repair tools allow users to fix common issues such as playback errors or damaged codecs by converting videos into a different format. This functionality is especially beneficial for users dealing with videos that won’t play due to corruption during recording or processing.
Steps to Use:
Follow these steps to repair corrupted video files using VLC Media Player:
Step 1. Open VLC Media Player and click on "Media".
Step 2. Select the "Convert/Save" option. Go to the "Open Media" window.

Convert-button-VLC
Step 3. Click the "Add" button to browse and select your corrupted video file. Select the file and it will appear in the media list.
Add-button-VLC

Step 4. Click "Convert/Save" to proceed to the "Convert" window.

Open-convert-window
Step 5. Enter the desired file name and output location where the repaired video will be saved.

Enter-file-name-VLC
Step 6. Click the "Start" to start the process.

Start-repairing-video-VLC
C. Method 3: Untrunc Tool
MP4 Repair Untrunc GUI is an advanced tool designed to recover and repair damaged video files encoded with H.264. Its intuitive graphical user interface simplifies the process. The tool is on a reference file that is a similar and undamaged file from the same recording source. This makes it ideal for fixing files affected by unexpected interruptions. The tool also supports repairing M4A audio files and works seamlessly with Windows operating systems. MP4 Repair Untrunc GUI is free and open-source to ensure accessibility for all users. It can also salvage critical footage from drones and other devices that utilize MP4 formats.
Follow these steps to repair corrupted video files using MP4 Repair Untrunc GUI:
Step 1. Visit the developer’s site or a trusted source like VideoHelp to download the latest version of the MP4 Repair Untrunc GUI.

Download-Untrunc-GUI
Step 2. Unzip the downloaded file and open the `untrunc-gui.exe` file.
Step 3. Place the corrupted video file and a similar and unbroken reference file in the same folder.
Step 4. Browse and select the reference file and the corrupted file in their respective fields.

Select-reference-and-curropted-files-Untrunc
Step 5. Click the "Repair" button. The tool will process the files and attempt to reconstruct the damaged video. The repaired video will be saved in the same directory as the original files.
IV. Expert Analysis: Chances of Successful Repair
The process of repairing corrupted video files can vary depending on the specific corruption type. Below are overviews of different corruption scenarios, followed by an evaluation of how effective each repair method is in handling these situations.
Overview of Different Corruption Scenarios
Corruption Type
|
Description
|
File Header Corruption
|
Occurs when the file's metadata or header is damaged, making it unreadable.
|
File Structure Corruption
|
Involves damaged video data, resulting in playback issues or no video output.
|
Incomplete Download/Transfer
|
Happens when a video download or transfer is interrupted, leaving the file incomplete.
|
Bad Sectors on Disk
|
When parts of the hard drive are physically damaged, causing file corruption.
|
Codec Issues
|
Missing or corrupted codecs can prevent videos from being properly decoded.
|
Audio-Video Sync Issues
|
When video and audio are out of sync, usually due to corruption during recording.
|
File Format Errors
|
Occurs when the video file’s format is not supported or has been altered.
|
Effectiveness of Each Method in Various Situations
Corruption Type
|
EaseUS Video Repair Tool
|
VLC Media Player
|
Untrunc Tool
|
File Header Corruption
|
✅
|
❌
|
❌
|
File Structure Corruption
|
✅
|
❌
|
✅
|
Incomplete Download/Transfer
|
✅
|
✅
|
❌
|
Bad Sectors on Disk
|
❌
|
❌
|
❌
|
Codec Issues
|
✅
|
✅
|
❌
|
Audio-Video Sync Issues
|
✅
|
✅
|
❌
|
File Format Errors
|
✅
|
✅
|
❌
|
Summary of Repair Success Rates for Different Types of Corruption
Corruption Type
|
EaseUS Video Repair Tool
|
VLC Media Player
|
Untrunc Tool
|
File Header Corruption
|
High
|
Low
|
Low
|
File Structure Corruption
|
High
|
Low
|
High
|
Incomplete Download/Transfer
|
High
|
Medium
|
Low
|
Bad Sectors on Disk
|
Low
|
Low
|
Low
|
Codec Issues
|
High
|
Medium
|
Low
|
Audio-Video Sync Issues
|
High
|
Medium
|
Low
|
File Format Errors
|
High
|
Medium
|
Low
|
FAQ
Why Are Some Video Files Not Found After an Interrupted Recording?
Here are several reasons why a video file may not be found after an interrupted recording:
- If the recording process was stopped abruptly, the file may not have been finalized.
- The header of the video file that stores essential metadata may become corrupted during the interruption.
- Insufficient disk space or errors on the storage drive could prevent the video file from being saved properly.
- A crash in the recording software or operating system can cause the video file to be lost or improperly saved.
- The corrupted File Directory makes the files inaccessible.
- The recording software may not properly encode the file during an interruption.
- Some video recording programs create temporary files during recording.
2. What are the chances of recovering overwritten files?
Recovering overwritten files is extremely challenging and depends on the extent of the overwriting:
- Partially Overwritten Files: If only a portion of the original data has been replaced, some fragments may still be recoverable using specialized tools like EaseUS Data Recovery.
- Fully Overwritten Files: Recovery is nearly impossible for entirely replaced files as the original data no longer exists.
3. How to Repair Corrupted Videos Online for Free?
EaseUS Video Repair Tool is a highly recommended option to repair corrupted videos online for free. It offers a simple interface and effectively repairs various types of video corruption.
Step 1. Visit the EaseUS Video Repair Tool website.
Step 2. Click on "Upload Video" and select the corrupted video file.
Step 3. Click on "Add Sample" and choose a working version of the same video.
Step 4. Once the corrupted video and sample video are added, click the "Repair" button. The software will begin fixing the video file. You can preview the repaired video to ensure the issues have been resolved.
Step 5. Click "Save" to download the repaired video.
VI. Conclusion
Videos are essential in both personal and professional settings. However, corrupted video files can limit your access to important content. Repairing corrupted videos may seem impossible. It is possible to restore the corrupted files using the right tools. This article explored several free online tools designed to repair corrupted video files. Each tool offers a unique approach to video repair. EaseUS Video Repair stands out as the best option due to its advanced features and high success rate. It can fix a wide variety of video corruption problems and ensure your video files are restored with minimal hassle.
VII. Additional Resources
- https://www.easeus.com/video-repair-tips/online-video-file-repair.html
- https://www.easeus.com/video-repair-tips/free-video-repair-online.html
- https://www.easeus.com/video-repair-tips/repair-unplayable-video-files.html
- https://repairit.wondershare.com/video-repair/mp4-video-repair-tool.html
- https://medium.com/@best-software/how-can-i-repair-a-corrupted-mp4-file-for-free-c74bd9c19700