Upscale
Enlarge images to any size with AI super-resolution
Drop an image or click to browse
PNG, JPEG, WebP up to 20MB. You can also paste from clipboard.
Frequently Asked Questions
What happens if I close the browser or it crashes during upscaling?+
Nothing is saved to your device during processing. All image data stays in your browser's temporary memory (RAM) — no files are written to disk. If the browser closes or crashes, the operating system automatically reclaims all that memory. There are no leftover temporary files to clean up.
Is there a maximum image size I can upscale?+
The AI processes your image in small tiles, so very large outputs are handled efficiently. However, your browser imposes canvas dimension and area limits (typically ~32,000 px per side and ~268 MP on Chrome, ~16,384 px on Safari). The tool detects these limits automatically and shows a warning if your target size exceeds them. Within those limits, processing time scales with the number of output pixels.
Does my image get uploaded to a server?+
No. Everything happens 100% in your browser using on-device AI. Your photos never leave your computer — there is no server, no cloud, and no network requests during processing.
Why does the second half of processing take much longer than the first?+
Multi-pass upscaling processes the image in two rounds. The second pass works on the already-enlarged output of the first pass, which has 4x more pixels. The progress bar is weighted to reflect this — it moves proportionally to actual work done, not the number of passes.
Can I cancel an upscale that's taking too long?+
Yes. Click the Cancel button at any time during processing. It immediately stops the AI worker and frees all memory. You can then start a new upscale with different settings.