About Video Compressor
Video files are large because they store a lot of information per second, and phone cameras keep raising both resolution and bitrate. If a clip is too heavy for email, a chat app or a form upload, the two levers that matter are resolution and encoder quality: dropping 1080p to 720p removes more than half of the pixels, and a more aggressive quality setting discards detail the eye is unlikely to notice on a small screen.
This compressor exposes both levers in plain language. You pick a level from light to strong and, optionally, a maximum height. The server then re-encodes the video so the frame never gets larger than the source, and it reports exactly how many bytes you saved compared with the original upload. Audio is converted to 128 kbps AAC, which keeps speech and music clear at a small cost.
What this tool does
Two controls, understandable names
A compression level and an optional output resolution replace bitrate maths. Light keeps detail, strong shrinks hardest, and resolution limits cap the frame height.
Never upscales
If you choose a maximum height larger than the source, the original frame size is kept. The compressor only ever removes pixels, never invents them.
Real size comparison
The result panel shows the original size, the new size and the percentage saved, so you can see whether the settings actually helped.
Compatible MP4 output
Every compressed file is H.264 video with AAC audio in an MP4 container, ready for email, chat apps, websites and social uploads.
Faststart metadata
The MP4 index is written at the front of the file so players can start before the download finishes, which matters for clips embedded on a page.
Temporary files only
The original video and the compressed copy are held in a temporary directory during the job and deleted automatically once you download.
How to use Video Compressor
- 01
Upload the video you want to shrink
Drop a file into the workspace or browse for one. MP4, MOV, MKV, WebM, AVI and several other common containers are accepted up to 100 MB.
- 02
Pick a compression level
Start with balanced. Move to light if the video has fine detail you want to protect, or strong if size is the priority.
- 03
Set a resolution ceiling if needed
Choosing 720p or 480p usually saves far more space than the quality setting alone, and it is often invisible on phones.
- 04
Compress and compare
Click Compress video, wait for the job to finish, then read the size comparison in the result panel.
- 05
Download or retry with stronger settings
Save the MP4, or press Start over and run the same clip again with a lower resolution or a stronger level if the first result was not small enough.
Supported formats and limits
- Input
- MP4MOVMKVWebMAVIWMVMPEGM4V3GP
- Output
- MP4
- Processing
- Server-side FFmpeg job in a temporary directory, deleted after download.
- Maximum size
- Up to 100 MB
- Requirements
- Chrome, Edge, Firefox or Safari · Server-side FFmpeg conversion
Limitations worth knowing
- Video compression is lossy: detail is discarded and cannot be recovered from the result.
- One file at a time, 100 MB maximum, three-minute job cap.
- Audio is always re-encoded to 128 kbps AAC; there is no separate audio bitrate control.
- Already-compressed clips can stay the same size or even grow when re-encoded at a higher quality target.
Privacy and file handling
The video you upload is written to a temporary working directory on our server, compressed with FFmpeg, and streamed back to your browser as a download. The original and the compressed file are deleted automatically when the download finishes; there is no permanent storage, no content logging and no account.
Read the full privacy policy