ToolForgeby ForgeSparse

Upscale Image

Enlarge images 2×, 3× or 4× with sharp, high-quality scaling.

Upload an image

Drop an image here, or click to browse

JPG, PNG, WebP, GIF or HEIC · you can also paste with Ctrl+V

Processed in your browser — nothing is uploaded.

Upscale images to 2× or 4×

Enlarge small images with high-quality stepwise interpolation and adjustable sharpening, so they print and display bigger without looking blocky. This is not generative AI — it won't invent detail — but it gives clean, sharp enlargements instantly and privately.

Why use this tool

2×, 3× or 4× enlargement

Scaled in doubling steps with high-quality smoothing to avoid blocky pixels.

Adjustable sharpening

Restore crispness lost in enlargement with an unsharp-mask filter.

Instant results

No queue and no model download — it runs straight away in your browser.

Private by design

Your images are processed in your browser and never uploaded to a server.

How it works

  1. 1Upload an image.
  2. 2Pick 2×, 3× or 4× and set sharpening.
  3. 3Download the larger image.

Frequently asked questions

Good to know

  • Best for logos, illustrations and fairly sharp photos.
  • This is high-quality interpolation, not generative AI — it can't invent missing detail.
  • Keep sharpening moderate to avoid halos around edges.