Guides, comparisons and upscaling craft
Practical writing about AI image upscaling — how the models actually work, which tool suits which job, and how to get more out of the images you already have.
Best Free AI Image Upscaler 2026 — Tested & Compared
Six upscalers, four deliberately awkward test images, and what actually held up.
12 min read
GuideHow to Upscale Images to 4K Without Losing Quality
Why traditional resizing fails, what AI reconstruction does instead, and the settings that matter per use case.
10 min read
Head to headImageUpg vs LetsEnhance — Which AI Upscaler Is Better?
Architecture, pricing and output quality compared — including where LetsEnhance wins.
9 min read
Upscale images to 4K
Take any photo up to 3840px on the long edge.
Use caseRestore old photos
Scans, grain and faded faces rebuilt.
Use caseUpscale AI art
Midjourney, DALL·E and Stable Diffusion output.
Use caseUpscale for print
Hit 300 DPI at the size you actually need.
Use caseAnime & manga upscaler
Line art and flat colour without the mush.
Start upscaling free
Three images without an account. Seven tokens a month once you register.
Try ImageUpg Free — No Signup Required 7 free tokens every month · no card required