ToolboxKit

Image Upscaler

Upload a small image and get a 2x larger, sharper version using an on-device AI model.

Your files never leave your device — everything runs in your browser.

Runs fully on your device with an on-browser AI model, so images up to 512px per side are supported to keep it fast. The first run downloads the model.

How to Use

  1. 1Drag and drop a small image, or select it.
  2. 2Wait while the AI enlarges it — a progress bar shows the status.
  3. 3Download the 2x upscaled PNG.

Frequently Asked Questions

Why is there a size limit?

AI upscaling is compute-heavy and runs in your browser, so inputs are limited to 512px per side to keep it responsive on ordinary devices.

Is my image uploaded anywhere?

No. The AI model runs locally in your browser; your image never leaves your device.

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