Where the 5 MB limit comes from
Notion’s free plan accepts files up to 5 MB, and 5 MB is a frequent limit on job portals, online forms, forum attachments and helpdesk widgets. Short phone clips and screen recordings fit easily; longer ones need a lower resolution.
What fits into 5 MB
The compressor splits the size between picture and sound: about 96 kbit/s go to the sound, the rest to the picture. The longer the video, the fewer bits each second gets, so the resolution goes down to keep the picture clean rather than blocky:
| Length | Picture bitrate | Resolution |
|---|---|---|
| 15 seconds | 2.4 Mbit/s | 720p |
| 30 seconds | 1.1 Mbit/s | 720p |
| 1 minute | 525 kbit/s | 480p |
| 3 minutes | — | too low: trim it |
The target on this page is 4.8 MB — a little under 5 MB, because sites count megabytes differently and some add a few kilobytes on upload.
Tips
- For a screen recording keep Resolution: Original so text stays readable — still screens need very few bits.
- If the clip is longer than two or three minutes, trim it or split it into several 5 MB parts.
How it works
- Add one or more videos — or a whole folder.
- The size is already set to 4.8 MB. Every video is compressed to fit it; short clips that already fit keep their quality.
- Press Compress. Everything happens in your browser: the video is never uploaded, so there is no file size limit and no queue.
Questions
How long can a 5 MB video be?
About 30 seconds at 720p or a minute at 480p with sound — or several minutes of screen recording.
Does it add a watermark?
No. CompressLab is free and adds nothing to your video.
Can I compress several videos to 5 MB at once?
Yes. Add several files or a folder — each one is compressed to 5 MB.
Last updated: 2026-10-30