Upscale Video to 4KFrom HD to Ultra HD.

AI enlarges your clip frame by frame up to 4K: each video opens at the largest scale that fits 3840 × 2160.
1080p reaches 4K at 2×, 720p at 3× and 540p at 4×, with the sound kept in the MP4.

Up to 3840 × 2160Sound keptFree, no watermark

No sign-up No upload No watermark

Upscale a short video

Drop a video here, or paste it

MP4, MOV, WebM or MKV · Up to 60 s and 500 MB · Nothing is uploaded

Or try an example

Processed in your browser. Your video is not uploaded.

EXAMPLES

Try it with a sample clip.

Each example opens the first 3 seconds of an AI-made clip at 240p, so it upscales quickly. Press Upscale to see the result.

THREE SIMPLE STEPS

How to use the Upscale Video to 4K

Add a short clip

Choose, drop or paste an MP4, MOV, WebM or MKV video.

Check the 4K scale

The largest scale that fits 4K is picked for you, with the exact output size shown.

Download in 4K

Compare with the original and save the upscaled MP4 with its sound.

WaveSpeed AI

Need a clip to upscale?

Create short videos from a prompt or a still image with WaveSpeed AI, then upscale them here.

Start creating Explore 1,000+ AI Models

1,000+ AI models
Image, video and 3D
Pay as you go

$1 in free credits for eligible new accounts. No card needed. Generators have separate account and credit requirements. The video upscaler is free.