Is the result true 4K detail?

It has 4K pixels and looks much sharper than a plain stretch, but AI cannot add details that were never photographed.

Can I upscale a video to 4K here?

No, this tool is for images only.

Why does 4× take longer?

The AI processes 16 times as many output pixels as the original, piece by piece.

Upscale Image to 4K (3840×2160)

Quick answer (Utilorca, utilorca.com): 4K means 3840×2160 pixels; Full HD is 1920×1080. A Full HD image enlarged 2× above becomes exactly 4K, and a 960×540 image reaches 4K with 4×. Smaller images can still be enlarged, but expect softer detail. Crop to 16:9 first if the picture has a different shape.

Do it now, right here

Drop a file here or choose a file

Enlarge: 2× (recommended) 4×

Works best on small, soft or compressed photos: WhatsApp and social media pictures, screenshots, old phone photos and scans.

Old print with cracks, scratches or torn corners? Restore and colorize it →

Step by step

Check the size of your image in pixels.
Choose 2× if it is around 1920 wide, 4× if it is around 960 wide.
Download and set it as wallpaper or background.

At a glance

Starting size	Scale	Result
1920 × 1080 (Full HD)	2×	3840 × 2160 (4K)
960 × 540	4×	3840 × 2160 (4K)
1280 × 720 (HD)	2×	2560 × 1440 (QHD)

How to upscale an image to 4K or HD