MORE ROOM FOR DETAIL
Free AI Image Upscaler – Upscale Images Online
Upscale photos with AI to a 2K or 4K long edge. Preserve aspect ratio, inspect the detail, and download the result. Free to use, no sign-up.
Every photo has a next chapter.
Drop your image here to begin.
JPG · PNG · WebP · up to 20 MBUpscale Image Online
Upload a photo, choose 2K or 4K, run the upscaler, and download the result after comparing it with the original.
Enhance Image Quality with AI
AI can infer additional detail as it increases resolution. It can also change small features, so review faces, text, and fine patterns.
Increase resolution up to 4K
2K means a 2,048-pixel long edge; 4K means a 4,096-pixel long edge. The other edge follows the original aspect ratio.
Sharpen blurry photos
Try the enhancer for softness and the upscaler for a larger output. Neither can guarantee recovery of detail that was never present.
A LITTLE MORE CLARITY
Frequently asked questions
How to upscale an image to 4K?
Upload the image, choose 4K, and run the tool. Downloaded output uses a 4,096-pixel long edge while preserving its aspect ratio.
Is this AI image upscaler free?
Yes. AI upscaling is free within the shared daily site allowance. No account or payment is required.
What is the best free image upscaler?
Choose one that gives usable results on your actual images. Compare faces, lettering, textures, and output dimensions rather than only the preview size.
Can I upscale an image that is already larger than 4K?
Check the original and target dimensions shown in the workspace. A 4K target is not an instruction to multiply every input by four.