Compress a video to send on WhatsApp without losing quality. Free, no upload, no signup. SammaPix shrinks your MP4 under WhatsApp's 16 MB limit right in your browser.
WhatsApp rejects videos larger than 16 MB and compresses the rest into a blurry mess. Compress it yourself first to stay sharp and under the limit.
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MP4, MOV, WebM, MKV, AVI — shrink files by up to 80%
100% in your browser — your video never leaves your device · up to 500 MB
WhatsApp limits videos to 16 MB for most accounts, which is roughly 90 seconds to 3 minutes depending on quality. Anything larger is rejected or heavily re-compressed by WhatsApp itself, which is what causes blurry sends. Compressing to 1080p with a small or balanced preset usually lands well under 16 MB.
Use the target-size mode set to 16 MB and keep the 1080p downscale on. SammaPix re-encodes the video in your browser with WebCodecs and shows the estimated size live, so you can confirm it fits before downloading. Audio is kept untouched.
No. The entire compression happens locally in your browser. Your video is never sent to a server, which is faster and private. Nothing is stored.
When a video is over the limit, WhatsApp applies its own aggressive compression with no quality control. By compressing it yourself first, you decide the trade-off and keep it sharp.