Enlarge an illustrated avatar
Try a larger version of an older line-art avatar for a profile layout. Check hair lines and facial contours rather than assuming new detail is original.
Upscale images 2× online, free and private
Enlarge one small JPG, PNG, or WebP on this device with an open-source 2× AI model. Review the result closely: generated detail can change the source.
Upscale one image 2× on this device
Files stay in your browser. SugarCube does not receive or store them.
1 · Choose a file
JPG, PNG, or WebP · up to 8 MB · 2 megapixels · 2,048 px longest edge
Drop one image here
or choose a JPG, PNG, or WebP from this device
2 · Set your output
Fixed local setting: 2× AI upscale
Choose a file to see its dimensions and prepare your output.
3 · Compare before downloading
Check the visible detail and actual file size. Your original stays unchanged.
Original
2× result
- Free to use No account and zero credits.
- Processed locally Your image stays in this browser.
- Fixed 2× output One JPG, PNG, or WebP up to 8 MB, 2 MP, and 2,048 px.
How to use this tool
Select a small image
Choose a small image within the displayed limits. It stays on this device.
Run the fixed 2× enlargement
Start the fixed 2× enlargement and keep the page open.
Inspect details before downloading
Compare faces, letters and lines, then download; added details can be inaccurate.
Where a larger image can help
A real 2× enlargement
A 160 × 90 test image, downsampled from the illustration, was processed with the bundled UpscalerJS model. The 320 × 180 output adds pixels; it is not proof that lost details were recovered.
Review a larger illustration
Enlarge a flower-shop picture-book image for a print-layout preview. Inspect pencil edges and paper texture; check final print dimensions separately.
Inspect a product detail crop
Make a jewelry crop larger for a design discussion. Compare metal edges and gem texture with the source; the output cannot reveal previously unrecorded product facts.
Prepare an architectural review image
Enlarge a small concept-board image for a presentation. Check window grids and line work before discussing it; the result is not a measured technical drawing.
Continue with a related tool
Swipe to explore related tools
Frequently asked questions
Is this AI image upscaler free?
Yes. This page is free to use, does not require an account, and uses zero SugarCube credits.
Do you upload my image for AI upscaling?
No. The selected file and result stay in your browser. The page does not submit the image to SugarCube or create a server-side history.
How much does this tool upscale an image?
It runs a fixed 2× AI upscale. The actual output dimensions are shown after the browser finishes processing the image.
Does AI upscaling restore the true original detail?
No. The model can invent or change details, including text, faces, and thin lines. It is not suitable for forensic, identity, document, or medical restoration.
Which images can I upscale?
This tool accepts one JPG, PNG, or WebP image up to 8 MB, 2 megapixels, and a 2,048 px longest edge. It does not accept SVG, remote URLs, folders, or batches.
Output format and quality
The local 2× model uses a fixed processing recipe. It returns a browser-generated PNG or JPEG when supported; transparent input defaults to PNG when that output is available. Review the observed MIME type and preview because browser support can differ.
Choose an image to enlarge 2×
Your file stays on this device. Return to the tool to choose it and review the result.
Choose a file