Video Compressor

Shrinks large video files. You can drop resolution, change format and tune the compression strength.

What it does

Use this to shrink 4K phone videos for WhatsApp, make drone footage shareable, or cut the disk usage of a training-video archive. Size can drop by up to 90%.

How to use

  1. Drag video files into the list.
  2. Pick a Resolution (720p is the default and a good all-rounder).
  3. Pick an Output Format (MP4 recommended).
  4. Set the Compression Strength (default 28).
  5. Click Run.

You get one compressed copy per video.

Resolution options

ResolutionWhat for
OriginalKeep the resolution, just compress.
1080p (Full HD)High quality for TV/PC.
720p (HD)The right balance for most uses.
480p (SD)Email, WhatsApp sharing.
360pPreview, mobile-data viewing.

Output formats

  • MP4: Most universal, plays everywhere. Recommended.
  • MKV: Open standard, flexible.
  • MOV: Apple devices.
  • AVI: Legacy systems.
  • WEBM: Modern web.

Compression strength (CRF)

  • 20-24 (High Quality): Light compression, quality first, files stay big.
  • 25-30 (Efficient): Balanced. The default 28 works in most cases.
  • 31-40 (Extreme): Max savings, visible quality loss.

Examples

4K phone videos for WhatsApp: Add the videos, 720p, MP4, CRF 28, run. Size drops by around 85%.

Drone videos for social media: Add the videos, 1080p, MP4, CRF 23, run. Quality kept, size still cut.

Lighten a training archive: Add the videos, 720p, MP4, CRF 30, run. Fits more videos on the same disk.

Quick preview for email: Add the video, 480p, MP4, CRF 32, run. Very small file.

Watch out

  • Very high CRF (35+) shows block artefacts.
  • Picking a resolution higher than the original does not upscale, the file keeps its resolution.
  • High-motion content (sports, gameplay) compresses less efficiently.
  • The audio codec is preserved, audio is not re-encoded separately.
  • Long videos can take hours, the job is RAM and CPU heavy.

License

Free tier has a monthly compression cap. Office plan removes it.