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Free Video Upscaler - Enhance Video to 4K Online

Upscale video free online - enlarge and sharpen clips up to 4K in your browser. No sign-up.

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Video Upscaler
Enlarge & sharpen video up to 4K quality, in your browser.
Video & Media
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Result (click to download)
Re-renders your video at 2x to 4x size for HD and 4K displays. Your original audio is carried through and the result is a standard MP4 you can upload anywhere. Long videos take a while, and you can press Stop at any point. Runs fully in your browser.
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Voice & AudioVideo & MediaDocs & PDFAI Image & PhotoText & WritingSocial & ContentDeveloper ToolsCalculators & FactsFun & UtilityVideo Studio (CapCut Alt)
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How to use

Video Upscaler - how it works

Four simple steps, under ten seconds.

  1. Open the Video Upscaler page and drag your file into the upload box, or tap it to browse your device.
  2. Adjust the options if you want to: quality, size, format, speed or colors.
  3. Press the button to run it - results appear in seconds, processed right in your browser.
  4. Download your result. It saves straight to your device, free and with no watermark.
FAQ

Video Upscaler - quick answers

Everything you need to know.

What does Video Upscaler do?

Enlarge & sharpen video up to 4K quality, in your browser. It is part of the Streams8K free AI toolbox - no sign-up, no watermark, unlimited use.

Is Video Upscaler really free to use?

Yes. Video Upscaler is 100% free with unlimited uses: no account, no credit card, no hidden limits and no watermark on your downloads.

Do I need to install anything to use Video Upscaler?

No. Video Upscaler runs right in your browser - just open this page and start. It works on any modern browser (Chrome, Edge, Firefox, Safari) on desktop or mobile.

Do my files leave my device when I use Video Upscaler?

No. Video Upscaler processes your files locally, inside your browser - they never get uploaded to a server, so nothing is stored or tracked.

What video formats does Video Upscaler handle?

Any clip your browser can play - MP4, WebM, MOV and more. No codecs, no installs.

How do I use Video Upscaler?

Follow the four steps above - most jobs take under ten seconds from start to download.