Free, instant, private
Everything runs in your browser. No account, no AI credit, and the file never leaves your device.
Free Image Upscaler
Enlarge an image 2× or 4× in your browser with a sharpening pass — instant and free, with no AI credit spent.
lock Your files stay in your browser — free, no account needed
photo_size_select_large
Drop an image here
or choose a JPG, PNG, or WebP file
Your upscaled image appears here once it runs.
What this actually does
Bacon's Image Upscaler enlarges an image using smoothed canvas interpolation, done progressively — one 2× pass at a time — plus a light contrast and saturation boost to recover some of the sharpness interpolation loses. It is honest about what it is: a resize-and-polish. It is not the kind of AI model that invents believable new detail, and Bacon does not claim it is. For a modest size increase it looks clean. For a very blurry or heavily compressed source, upscaling makes it bigger, not sharper than the original detail allows.
2× or 4×
Choose how much larger you need it. 4× runs two progressive passes rather than one large jump, which keeps more detail than a single big resize would.
Up to 4096px
Results are capped at 4096px on the longest side — plenty for print or a large display, while keeping the browser responsive.
Need it a specific size after?
Upscaling changes an image's resolution, not its exact dimensions for a specific use. Once it's larger, set precise pixel dimensions with the Image Resizer, or open it in the full Bacon editor to keep working on it.
Common questions
How do I upscale an image?
Choose a JPG, PNG, or WebP file, pick 2× or 4×, and run it. The result appears next to your original.
Is this real AI upscaling?
No, and Bacon doesn't claim it is — it's interpolation plus a sharpening pass, not a model that invents new detail.
Does this cost anything?
No. It's free, runs in your browser, and needs no account or credit.
What's the largest size?
Results are capped at 4096px on the longest side.
Can I keep editing after?
Yes — open the result directly in the Bacon editor.
Why does 4× look softer?
Each doubling can only work with the detail already in the source — a higher-resolution start gives it more to work with.