Shrink MP4 videos in seconds, right in your browser — no upload, no signup.
MP4 Compressor shrinks your .mp4 files down to a smaller size while keeping them playable everywhere — on any phone, camera app or streaming service, with no format change needed. A quality slider lets you trade a bit of sharpness for a smaller file, so you decide how far to push it. The compressed file is also optimized to start playing immediately once it's downloaded or shared, instead of making the viewer wait for it to load first. Everything happens right here in your browser — your device does the work instead of a server, so your footage is never uploaded anywhere.
Drag and drop your .mp4 files, or click to browse. You can add several at once.
Use the slider or a quick preset, then click Compress. A progress bar shows you how it's going — everything happens on your device, so it can take a few minutes for a longer clip.
Save each file individually, or download every compressed file at once as a .zip.
Your videos are processed locally and never leave your device.
Works straight in your browser — no software, no account, no email.
Compressed files are optimized so playback begins right away, instead of buffering the whole download first.
Compress as many videos as you like, with no limits or hidden fees.
Shrink MOV videos in seconds, right in your browser — no upload, no signup.
Shrink WebM videos in seconds, right in your browser — no upload, no signup.
Shrink AVI videos in seconds, right in your browser — no upload, no signup.
Shrink MKV videos in seconds, right in your browser — no upload, no signup.
Shrink MP4, MOV, WebM, AVI and MKV videos in your browser — no upload, no signup.