AI upscaler · 12 free credits on sign-up

Upscale any image to 4K

Small phone photos, screenshots, web images and old files. PixelUp enlarges them with real detail so they print, crop and display cleanly.

Choose an image or drop it here
JPG, PNG, WEBP or HEIC up to 20 MB · 6 credits per run · Deleted after 24 hours
4.4 on the App Store, 64 ratings Never used for AI training About 15 seconds per photo
Hot air balloon upscaled with sharp detail Small, soft hot air balloon photo before upscaling BeforeAfter

Phone photo, 4x zoom, upscaled in one run. Drag to compare.

Bigger, and actually sharper

Ordinary resizing makes a bigger blur. The upscaler rebuilds texture and edges at the new size.

Real detail at 2K and 4K

Edges, textures and fine structure are reconstructed rather than stretched. A 1,000-pixel image becomes a 4K file that holds up when you zoom in.

  • Up to about 4096 pixels on the long edge
  • Noise and compression artifacts removed on the way
Upscaled balloon with crisp detail Small source image before upscaling BeforeAfter

Faces rebuilt, not smeared

A face model restores eyes, skin and hair at the larger size, so portraits enlarge without the plastic look of generic upscalers.

  • Every face in the frame
  • Identity and expression unchanged
Upscaled portrait with restored facial detail Low-resolution portrait before BeforeAfter

Made for printing and cropping

Print a small snapshot at A3, crop a group photo down to one person, or use a web image as a wallpaper. Export as JPG or PNG.

  • 1K preview free, 2K is 10 credits, 4K is 16
  • JPG or PNG output, no watermark on HD downloads
4K portrait ready for print 800 pixel source image 800 px4K

How to upscale an image

Three steps, no software to install.

Upload the image

JPG, PNG, WEBP or HEIC up to 20 MB. Small files are fine; that is the point.

See the result

About 15 seconds later you see the upscaled image next to the original. Drag the handle to check edges and faces.

Pick 2K or 4K and download

The download is included. 2K and 4K are extra runs at 10 and 16 credits; a 4K run takes about 20 seconds.

Questions people ask before uploading

Is the upscaler free?

Sign in with your email and get 12 free credits, enough for two runs. After that each run costs 6 credits at 1K, 10 at 2K, 16 at 4K, with the download included.

How much bigger can it go?

Up to 4K on the long edge, about 4096 pixels, from any input. Very small inputs, under 300 pixels, upscale but with less recoverable detail.

Does it invent detail?

It reconstructs plausible texture from what is there. Faces are constrained to stay the same person. Text and logos sharpen well when they are at least partly legible in the source.

Is 4K enough for printing?

Yes for A3 and smaller. 4K at 300 dpi is about 35 centimeters wide.

Can I upscale screenshots and web images?

Yes. Compression artifacts and JPEG blocks are removed as part of the pass.

What is the difference from Enhance?

Enhance runs the same engine with sharpening, denoising and light correction at the size you choose. Upscale is Enhance focused on the output size; pick either, both let you choose 1K, 2K or 4K.

PixelUp for iPhoneFree on the App Store · 4.4 ★

Upscale straight from your camera roll

Same AI, same credits. The iPhone app adds the tools that need a finger on the screen:

  • Color room: manual edits, LUTs, curves and filters
  • AI backgrounds from a text prompt
  • Save back to Photos in one tap
Download on theApp Store iOS 15 or later
Lake scene with the balloon erased in the PixelUp app Lake scene with a hot air balloon before erasing BeforeErased

Upscale your first image

Sign in with your email, get 12 free credits, see the result in about 15 seconds.

Upscale an image