100MB video target
Compress video toward 100MB without upload.
Use target size mode for larger videos when you need a smaller MP4 but do not want to upload the source to a cloud converter.
Compress video to 100MB
Estimate a 100 MB MP4 output locally in the browser.
Your selected video is processed in this browser tab. It is not uploaded to a conversion server.
Ready.
100MB is a practical large-file target
The target size mode estimates a bitrate budget from video duration. It can be useful for large uploads, but browser memory and source length still matter.
Best settings and limits
Best first try
Switch Mode to Target size estimate, enter 100 MB, and use 720p first. Try 480p for long recordings.
When this may fail
Large files can be slow in a browser. Exact output size is not guaranteed, and some 4K or high-motion videos may need trimming first.
Privacy boundary
The selected video file stays on your device while the tool creates the output.
Frequently asked questions
Can I compress a large video to 100MB without uploading?
Often, yes, if the browser has enough memory. The source video stays local.
Why might the result miss 100MB?
Bitrate estimates can vary because video content, audio, duration, and codec behavior affect final size.
What if the browser fails?
Try a shorter clip, lower max height, or a desktop browser with more memory.