Big Video Logo
BigVideo

Video Size Increaser

Increase your video file size instantly from MB to GB or KB to MB.

Click to upload or drag video here

Supports MP4, AVI, MKV, MOV (Max 1GB output recommended)

filename.mp4

Original Size: 0 MB
100 MB
Original Max Safe (2GB)
Error message here

Success! File Ready.

Your video has been increased to 100 MB.

Download File

Why Increase a Video’s File Size?

In the digital age, we usually strive to compress files to save space. However, there are unique scenarios where you might need to do the exact opposite: take a small video file and make it appear significantly larger, effectively "increasing" its file size without altering the visual content. Whether you are testing storage systems, checking upload limits on a server, or performing a harmless prank, our Video Size Increaser Tool is the perfect solution.


  1. Testing storage systems and disk space behavior
  2. Checking or simulating upload size limits on servers
  3. Validating platform or application file-size restrictions
  4. Performing harmless pranks or demonstrations
  5. Running experiments with video handling workflows

What is Video Size Increasing?

Video size increasing is the process of adding "dummy data" to a video file. This tool appends empty bytes (zeros) to the end of your original file. Since video players (like VLC, Windows Media Player, or QuickTime) typically read the file header and index located at the start of the file, they simply ignore the extra data at the end. The result? A video that plays perfectly fine but reports a massive file size in your operating system.

Step-by-Step Guide to Using the Tool

  1. Upload Your Video: Drag and drop any video file (MP4, AVI, MKV, etc.) into the upload box above. We recommend starting with a small file for faster processing.
  2. Select Target Size: Use the intuitive slider to choose your desired output size. You can increase a 5MB video to 100MB, 500MB, or even 1GB.
  3. Process: Click the "Increase Video Size Now" button. Our advanced browser-based engine calculates the necessary padding.
  4. Download: Once complete, download your new file. It will look identical to the original but will occupy the exact amount of space you specified.

Important Considerations

  • No Quality Improvement: It is crucial to understand that increasing the file size does not improve the video resolution or quality. A 360p video will remain 360p, even if it is increased to 1GB.
  • Compatibility: While most desktop players handle increased files well, some strict uploading platforms (like YouTube or social media) might re-process the video and strip away the empty data, returning it to its original size.
  • Browser Limits: Since this tool runs entirely in your browser to ensure privacy, we cap the increase at 2GB to prevent your browser tab from crashing due to memory limits.