Image Upscaler
AI 2× and 4× upscaling
Image Upscaler is on the roadmap. In the meantime, explore the other image tools.
What is Image Upscaler?
Upscale photos to 2× or 4× their original resolution using an in-browser AI super-resolution model. Adds plausible detail rather than just stretching pixels — small portraits become usable for prints, low-res screenshots become legible, scanned documents get sharper. The model loads on first use (~30 MB) and is cached for future runs. Larger images take longer; expect 5-20 seconds per megapixel on a modern laptop.
How do I use Image Upscaler?
- Drop a small or low-resolution image onto the upload zone.
- Pick the upscale factor (2× or 4×).
- Wait while the model processes the image — progress is shown in the panel.
- Click Download to save the upscaled image.
When should I use Image Upscaler?
Image Upscaler is for genuine detail enhancement. To downscale or just hit specific dimensions, use Image Resizer. To sharpen an already high-res image without resizing, use Blur / Sharpen. For changing only the DPI metadata, use DPI Changer.
How is AI upscaling different from a normal resize?
A normal resize stretches existing pixels — outputs look soft. AI upscaling generates plausible new detail by predicting what the high-resolution version would have looked like. Faces, edges, and text get sharper rather than blurrier.
How long does it take?
About 5-20 seconds per megapixel on a modern laptop, longer on older devices or mobile. The model loads once (~30 MB) and is cached, so subsequent runs start faster.
Will every image upscale cleanly?
Photos and screenshots usually do. Logos and line art may produce odd artefacts because the model was trained on natural images — vector formats are a better choice for those.
Is my file uploaded anywhere?
No. Everything runs in your browser. Your files never leave your device, and there is no server component for this tool.