Image Upscaler

Upscale images 2×, 3×, or 4× using bilinear interpolation - no AI required, runs entirely in your browser.

🖼️

Drop an image or click to browse

PNG · JPEG · WebP

About this tool

Upscale any image 2×, 3×, or 4× using bilinear interpolation - no AI subscription needed, no uploads. The tool runs entirely in your browser, making it ideal for enlarging pixel art, icons, diagrams, and simple illustrations while preserving clean edges. Outputs a full-resolution PNG you can download immediately.

How to Upscale an Image Online

1Drop your image onto the upload area or click to browse for a file.
2Select the scale factor: 2×, 3×, or 4×.
3Check the 'Output will be X × Y px' preview to confirm the expected size.
4Click 'Upscale' and wait for processing to finish.
5Click 'Download PNG' to save the enlarged image.

Frequently Asked Questions

What upscale factors are available?+

2×, 3×, and 4×. Select your target scale before clicking 'Upscale'.

Will it work on photos?+

Yes, but bilinear interpolation produces softer results on photos than AI-based upscalers. For photos, tools like Topaz Gigapixel or Upscayl give sharper results.

Is there a file size limit?+

There is no enforced limit, but very large images (over 10 MP) may take several seconds as processing happens on your CPU in the browser.

What file formats are supported?+

You can upload any image format the browser supports (PNG, JPEG, WebP). The result is always exported as a PNG.

Looking for a deeper guide on this topic? Browse the Searchlight blog.

Visit the blog →

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