Compress Video
Compress MP4, MOV, and WebM videos in your browser. Files never leave your device — free, private, no signup.
Compress Video
Compress MP4, MOV, and WebM videos in your browser. Files never leave your device — free, private, no signup.
Supports .mp4,.mov,.webm,.mkv,.avi files up to 200MB
Up to 80% smaller
Never uploaded — runs in your browser
No watermark
No signup
Why video files are so large
Video is by far the heaviest media type: one minute of phone footage at 1080p is typically 60-130 MB, and 4K triples that. Screen recorders and phone cameras prioritize speed over efficiency, encoding at bitrates far higher than needed for the content.
Most sharing destinations cannot take files that size — Gmail caps attachments at 25 MB, WhatsApp at 64 MB for many platforms, Discord at 10 MB on the free tier, and learning portals often reject anything over 100 MB.
Re-encoding with an efficient codec setting routinely cuts 50-80% of the size with no visible quality change, because the original simply wasted the bits.
Private by design: your video never leaves your device
This compressor runs entirely in your browser using WebAssembly. The video is decoded, re-encoded, and rebuilt locally — nothing is uploaded, stored, or processed on a server.
That matters for videos more than any other file type: meeting recordings, lecture captures, family footage, and unreleased content stay exactly where they are. It also means zero upload wait — a real time-saver when the input is hundreds of megabytes.
The trade-off is honest: encoding uses your device's own processor, so a long video takes a few minutes. A live progress percentage shows exactly where it is.
What the compressor does technically
Your video is re-encoded to H.264 — the most compatible codec there is — at a perceptually tuned quality level (CRF 28), with resolutions above 1280px wide downscaled to sharing-appropriate size while keeping the aspect ratio.
Audio is converted to 128 kbps AAC, and the file is packaged as a faststart MP4, meaning it starts playing immediately when streamed from chat apps, email previews, or web pages.
The result plays everywhere: every browser, every phone, WhatsApp, Discord, PowerPoint embeds, and LMS players. If your video is already efficiently encoded, the tool says so instead of returning a bigger file.