Use 8MB as a target, not a promise
A short low-motion clip may fit under 8MB after compression, while a long high-motion recording may need trimming or much lower resolution.
Some chat and upload workflows need very small video files. LessMB can help reduce supported videos locally, but exact 8MB output depends on the clip duration, motion, resolution and compression settings.
Compress your video below, then compare the final size against your upload limit.
Compress MP4, MOV, and WebM inputs to stable MP4 output up to 2GB without installing software.
A short low-motion clip may fit under 8MB after compression, while a long high-motion recording may need trimming or much lower resolution.
Try 720p or 480p output for sharing. Resolution has a major impact on final size and is usually easier to tune than codec details.
LessMB shows the final file size after compression, so you can decide whether the result fits your limit or needs another pass.
Short answers for the most common questions about this workflow and LessMB's local browser compression.
No. The final size depends on duration, resolution, motion and bitrate. LessMB helps reduce size and compare the result.
Lower resolution, lower bitrate and shorter duration help the most. For very large videos, trimming may be necessary.
Yes. Many users search for 8MB video compression because of Discord-style upload limits, but you should always check your current account limit.