Choose a file format to upscale
Every image format stores pixels differently, so each one benefits from slightly different settings. These guides explain what to expect from each format and how to get the cleanest enlargement with ClarityUp 4K.
Guides
JPG
Upscale JPG photos to 4K in your browser. Reduce JPEG blocking, sharpen soft edges and download a larger JPG or PNG — free, private and without uploading.
PNG
Enlarge PNG images and graphics up to 4K for free. Keeps transparency with Lanczos or bicubic, runs entirely in your browser, with no upload or sign-up.
WebP
Upscale WebP images from websites to 4K for free. Browser-based enlargement with sharpening and denoise, then download as PNG or JPG with no upload needed.
GIF
Want to upscale a GIF? Learn how to enlarge a still GIF frame for free by converting it to PNG first, then upscaling to 4K privately in your browser.
Need a sharper image from a PDF? Export the page or picture as PNG, then upscale it to 4K free in your browser. Private, no upload, no account required.