UseTool

Upscale Video

Enlarge a video locally, sharpen the edges and fix the colours - with a small AI model that works frame by frame.

Drop a photo, GIF or video hereJPG · PNG · WebP · GIF · MP4 · MOV · WebM

🔒 Your files never leave your device.

How it works

How it works

  1. 1

    Add what goes in

    Drop your MP4, MOV, WebM, MKV and GIF here, or pick it from your device.

  2. 2

    Start it

    Set the scale factor, then start. Everything runs in this browser — no upload, no queue, no account.

  3. 3

    Take the result

    The MP4 · WebM is ready the moment the run finishes. Save it straight to your device.

What this tool does

Upscale Video
Scales a video up with a local model, frame by frame. That is slow — a minute of footage takes minutes, not seconds — and it cannot invent detail that was never recorded.

When you need this

  • An old 480p family clip looks blurry on a modern TV.
  • A small screen recording has to be shown larger in a presentation.

Supported formats

JPGPNGWebPGIFMP4MOVWebM

Good to know

Frequently asked questions

What files can I use here?

Reads MP4, MOV, WebM, MKV and GIF. As many files at once as you like.

What do I get back?

You get MP4 · WebM.

Does the file lose quality?

Every frame is decoded and encoded again. That is what makes the file smaller or different — and it costs some detail, most visibly in fast motion and fine texture.

When does it not work?

The first run downloads a small model to your device. After that it works offline. Which video codecs work depends on your browser. Chrome and Edge read the most, including H.265 on many machines; Safari and Firefox refuse some. A file that will not open here usually opens in Chrome. A long or high-resolution video is limited by your device's memory. Phones give up earlier than laptops — half an hour of 4K can be too much.

Does the video lose quality?

Only when it has to be re-encoded. Cutting, joining and removing the sound track copy the picture data unchanged, so those are lossless. Compressing and adding a watermark do re-encode, which is why they take longer.

How long may a video be?

There is no fixed limit. What decides is the memory of your device: a phone manages a few minutes comfortably, a computer handles far more. If a long video fails, splitting it first and working on the parts usually helps.

Private by design

Your files stay on your device

Your files never leave your device.

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Ready-made

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