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ZeroToolbox

AI Photo Enhancer

Enhance photos for free with AI. Sharper detail, cleaner colours and less noise, set automatically for each photo, and up to 4× larger. Runs in your browser, so your photos are never uploaded.

  • Free
  • No sign-up
  • Nothing is uploaded

Related tools

Key Features

  • Rebuilds fine detail with Real-ESRGAN, so soft and low-resolution photos look sharp
  • Corrects dull colours and flat light only as much as the photo needs, so sunsets stay warm and night shots stay dark
  • Cleans up phone camera noise and the blocks left by WhatsApp and social media compression
  • Redraws blurry faces with GFPGAN, with a slider to keep more of the original face
  • Saves at the original size, 2× or 4× larger
  • No upload, no sign-up, no watermark and no daily limit

How to Use

  1. 1Add a photo: drop it on the box, choose it, or paste it with Ctrl+V.
  2. 2Wait while the photo is enhanced. The first time, the tool downloads its AI models once (about 20 to 30 MB, plus 85 MB if the photo has faces).
  3. 3Drag across the photo to compare before and after. Open "Fine-tune" to change sharpness, colour or light.
  4. 4Choose a size and click "Download enhanced photo".

Your privacy

Most photo enhancer sites upload your photos to their servers. Here the AI runs inside your browser, on your own computer or phone, so your photos never leave your device.

Frequently Asked Questions

How do I improve the quality of a photo for free?

Add the photo above. The tool measures it and fixes what it finds: blur, noise, compression blocks, dull colours and faces. Compare the result with the original, then click "Download enhanced photo". There is no watermark.

Will it change the colours of my photo?

Only when the photo looks washed out or tinted, and only part of the way. A photo with good colours keeps them. "Colour correction" under "Fine-tune" lets you go further or undo it.

Can it make a photo HD?

It enlarges a photo 2× or 4× and rebuilds the detail at the new size, which works well for small photos and photos saved from chats. It cannot add detail that was never in the photo, such as text too small to read.

Does it work on screenshots and drawings?

Yes. For screenshots, logos and drawings the image upscaler is a better fit, because it leaves colours exactly as they are.

Is my photo uploaded?

No. Everything happens on your device, and your photos never leave it.