Free Online Video Compressor
Shrink videos up to 80% for WhatsApp, email and social media — right in your browser. No upload, no watermark, no signup.
Drop a video here or click to upload
MP4, WebM, MOV · Never leaves your device
100% private — compression happens in your browser, videos are never uploaded to a server
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How it works
Upload your video
Drop an MP4, WebM or MOV file into the box — it stays on your device.
Choose a preset
WhatsApp/Social for smallest size, Balanced, or High Quality.
Compress & save
The video plays through once while compressing, then downloads.
No upload
Compression runs in your browser — videos never touch a server.
WhatsApp-ready
The social preset gets most clips under messaging size limits.
Keeps the audio
Sound is preserved and re-encoded alongside the video.
No watermark
Your compressed video is clean — no logos, no branding.
Compress videos without uploading them anywhere
Every other "online video compressor" makes you upload your file to their server, wait in a queue, and trust a stranger with your footage. This tool re-encodes the video locally in your browser using the same MediaRecorder engine your browser uses for screen recording — private, free, and with no file ever leaving your device.
When you need it
- WhatsApp — videos over 16MB get refused or brutally re-compressed; shrink them yourself first and keep control of the quality.
- Email — fit under Gmail's 25MB attachment cap.
- Status updates & stories — faster uploads on slow connections.
- Saving storage — archive old clips at a fraction of the size.
Pairs perfectly with the downloader
Downloaded a clip with our free video downloader that's too heavy to forward? Run it through this compressor and it's WhatsApp-ready in one pass. Images too big as well? The image compressor works the same private, in-browser way.
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Frequently asked questions
How do I compress a video for WhatsApp?+
Upload your video, choose the “WhatsApp / Social” preset and press Compress. It targets a small file size that fits WhatsApp’s 16MB document-free sharing sweet spot.
Is my video uploaded to a server?+
No. Compression happens entirely in your browser using the MediaRecorder API — your video never leaves your device.
How much smaller will the video get?+
Typically 50–80% smaller depending on the preset. The WhatsApp preset compresses hardest; High Quality keeps more detail.
Why does the video play while compressing?+
The browser re-records the video in real time at a lower bitrate — that playback is the compression. Keep the tab open until it finishes.
What format is the output?+
WebM (VP9/VP8), which plays on Android, Windows, Mac and every modern browser. Sound is preserved.
Is there a length or size limit?+
No hard limit, but because compression runs in real time, a 5-minute video takes about 5 minutes. For long videos, desktop browsers work best.
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Step-by-step guides
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