Free Tool
Image Upscaler & Enhancer
Upscale images up to 4x with sharpening enhancement. Before/after comparison slider. Fully browser-based — no upload required.
Drop your image here or click to upload
Supports JPG, PNG, WebP · Max 25MB · All processing is 100% local
Frequently Asked Questions
How does the upscaler work?
It uses bilinear interpolation for scaling combined with an unsharp mask algorithm applied directly in your browser. No files leave your device.
How much can I upscale an image?
Up to 4x the original resolution. 2x is ideal for most images; 4x works best for simple graphics or text-based images.
What image formats are supported?
JPG, PNG, WebP, and GIF (first frame). Output is always PNG for maximum quality.
Why does the upscaled image look blurry?
If the original image is very low resolution, the upscaling algorithm has limited information to work with. Increase the Sharpness setting to compensate.
Is this the same as professional AI upscaling tools?
Our tool uses client-side algorithms which are fast and private. Professional tools like Topaz Gigapixel use neural networks for superior results, but require payment or accounts.
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