Compress video
Shrink MP4, MOV, WebM or MKV videos by up to 90% with no upload: everything runs in your browser. Free, no sign-up, no watermark.
Accepted: MP4, MOV, M4V, WEBM, MKV, AVI, 3GP, WMV, FLV, MPEG · Max 1 GB per file
Processed on your device — nothing is uploaded.
How to compress a video
Drop your video above.
Pick the level, resolution, or a maximum size in MB.
Click Compress, wait a moment, then download the smaller MP4.
How it works
- Videos (MP4, MOV, WebM, MKV, AVI)
- The video is re-encoded to H.264 at a suitable bitrate and scaled to 1080p or 720p if needed. A phone video often loses 60–90% of its size. With a target size, the bitrate is computed from the duration.
Everything happens in your browser: your files are never uploaded to a server.
Other compression tools
- Compress a fileShrink your photos, videos, PDFs and audio files in one go.
- Compress imageReduce the size of JPG, PNG, WebP, AVIF and HEIC images with no visible loss.
- Compress JPGShrink JPG photos with MozJPEG: often 50% smaller with no visible difference.
- Compress PNGReduce PNG file size: lossless optimization (OxiPNG) or reduction to 256 colors, transparency preserved.
- Compress WebPReduce the size of WebP images by adjusting quality or resolution.
- Compress HEIC photoShrink iPhone HEIC photos by saving them as compressed JPG, WebP or AVIF that open everywhere.
- Compress image to 100KBGet a photo under 100KB for a form, job application or website: quality is adjusted automatically.
- Compress image to 200KBGet a photo under 200KB while keeping the best possible quality, e.g. for an official application.
- Compress MP4Shrink MP4 videos with no watermark or sign-up, right in your browser. Pick a level or a maximum size.
- Compress MOVShrink iPhone MOV videos by converting them to a compressed MP4 that plays everywhere.
- Compress video for DiscordGet your video under Discord's 10MB limit without Nitro: bitrate and resolution computed automatically.
- Compress video for emailGet a video under 20MB to attach it to a Gmail or Outlook email (20–25MB limit).
- Compress audioShrink WAV, FLAC, M4A or MP3 audio files into a lighter MP3.
- Compress MP3Shrink MP3 files by lowering the bitrate, or aim for a maximum size.
- Compress PDFMake your PDF lighter by recompressing its images while keeping text sharp.