Skip to content
ZeroToolbox

Compress Video

Make videos smaller for WhatsApp, email or upload forms. Pick a quality or an exact size in MB. Compressed in your browser, so the video never leaves your device.

  • Free
  • No sign-up
  • Nothing is uploaded

Related tools

Key Features

  • Reduces MP4, MOV, WebM and MKV videos, often to a fraction of their size
  • Choose smallest, balanced or best quality, or type an exact size in MB (for example 25 MB for email)
  • Lower the resolution to 1080p, 720p or 480p for even smaller files
  • Saves an MP4 that plays on phones, computers and WhatsApp
  • Uses your device’s own video encoder, so long videos go fast
  • No upload, no sign-up and no watermark

How to Use

  1. 1Choose how much to compress: a quality level or an exact size.
  2. 2Drop a video onto the box or choose one.
  3. 3Click "Compress video" and wait for the progress bar.
  4. 4Check the result, then click "Download video".

Your privacy

Video compressors usually upload your file, which is slow for big videos and gives a copy to someone else’s server. Here the video is compressed by your own browser and never leaves your device.

Frequently Asked Questions

How do I compress a video for WhatsApp or email?

Choose "Exact size" and type the limit, for example 25 MB for Gmail. The tool works out the quality that fits and lowers the resolution if needed.

Will the video lose quality?

A little, in exchange for a much smaller file. "Balanced" is hard to tell apart from the original on a phone screen. Use "Best quality" if details matter.

Is there a file size limit?

There is no fixed limit. Very long videos need enough free memory on your device; on phones, videos up to a few hundred MB work well.

Which browsers work?

Recent versions of Chrome, Edge, Safari and Firefox, on computers and phones. They include the video encoders the tool needs.