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Enlarge and Upscale Images in Your Browser

Increase image pixel dimensions up to 4× with smooth canvas interpolation without uploading files.

2x and 4x EnlargementHigh-Quality ResamplingZero Server UploadsFree & Private

Drop your image here

or choose a file from your device

PNG, JPEG, or WebP · Up to 40 MB
A practical guide

Use Upscaler with confidence

Increases pixel dimensions of images up to 4× using smooth browser canvas interpolation to prepare larger working copies for displays and layouts.

When this tool is useful

Enlarging small graphics, preparing avatars for higher-density screens, and scaling images for presentations.

What to check before downloading

Upscaling increases pixel count but cannot invent missing photographic detail. Choose 2× for the most natural result.

A simple workflow

  1. Upload the image you want to enlarge.
  2. Select an enlargement factor (2× or 4×).
  3. Preview the upscaled result and download the enlarged copy.

Common questions

How does in-browser upscaling work?

ImageDock renders the image onto an expanded HTML5 canvas using high-quality image smoothing algorithms.