Free online tool
Make MP4 and MOV files smaller for sharing and uploads.
Click-Compress is a free video compressor for MP4, MOV, MKV, AVI, and WebM. Upload a clip from your phone or camera and download a smaller file that still plays everywhere.
Our FFmpeg pipeline uses bitrate targeting and resolution caps so already-compressed clips (like WhatsApp videos) never get larger. High-bitrate originals can shrink 20–40% or more.
Supported formats
MP4, MOV, MKV, AVI, WebM, M4V
Typical savings
20–40% typical (up to 80% on high-bitrate sources)
Step 01
Choose MP4, MOV, or another supported format. Videos up to 25 MB use the GCP compression worker with FFmpeg.
Step 02
We analyze duration, resolution, and bitrate, then encode at a target size — or keep the original if it is already optimized.
Step 03
Get a smaller MP4 with fast-start enabled for smooth playback on phones and browsers.
Click-Compress uses bitrate targeting based on your file's existing quality. Heavily compressed clips are passed through unchanged; high-bitrate videos are re-encoded at a lower but still watchable bitrate.
Yes. Upload your MP4 and download a smaller version. If your video is already WhatsApp-compressed, we keep the original size instead of making it bigger.
MP4, MOV, MKV, AVI, WebM, and M4V. Output is typically MP4 (H.264 + AAC) for maximum compatibility.
Re-encoding with fixed quality settings (CRF) can inflate already-compressed phone videos. Click-Compress caps bitrate and never returns a file larger than the upload.
Open the workbench, upload your file, and download a smaller version in minutes.
Start compressing free