Use low resolution
For a 5MB target, use 480p or 360p output. This is suitable for short clips, screen recordings and demonstration videos.
Target file size
Compress Video to 5MB
Strict upload limits of 5MB require aggressive compressionLessMB helps reduce video file size locally in your browser for forms, applications and messaging
compress video to 5mbreduce video to 5mb5mb video compressormake video 5mb
Select a short video, use 480p or lower, and check the output size below.
Drop your file here, or
Compress and convert MP4, MOV, MKV, AVI, and more locally without installing software.
Files stay on your device
MP4 · MOV · WebM · MKV · AVI
No upload required100% free foreverWorks in your browser
What to know before you start
Keep clips short
A 5MB limit means roughly 15-30 seconds at 480p or 10-15 seconds at 720p. Trim longer videos before compressing if possible.
Check and iterate
LessMB shows the final file size. If it is still over 5MB, try lower resolution or a shorter clip.
FAQ
Compress Video to 5MB FAQ
Short answers for the most common questions about this workflow and LessMB's local browser compression
No uploadFree toolBrowser-based
Can I compress a video to exactly 5MB?
Exact file size depends on duration, resolution and motion. LessMB helps reduce size, but very short or low-motion clips work best for strict targets.
What resolution should I use for 5MB?
Try 480p for clips under 30 seconds. For longer clips, use 360p or trim the video first.
Are videos uploaded?
No. LessMB processes videos locally in your browser session.