Image Upscale — Enlarge Photos Without Blocky Pixels
Enlarge a small image to 2×, 3× or 4× its original size using bicubic interpolation — smoother than the nearest-neighbor scaling browsers do by default, giving you a larger image that looks reasonable at a distance.
Bicubic, not AI
This is classic interpolation, not AI upscaling. Great for logos and simple graphics where you need a bigger file. AI upscalers do better on photos of faces and scenes — those need dedicated services.
What you can expect
A 500×500 image at 2× becomes 1000×1000 with smooth edges. It won't magically add detail that isn't there; it will look better than a browser stretch.
Frequently Asked Questions
Is this AI upscaling?
No, it's deterministic bicubic — fast, private, and predictable. AI upscalers can invent detail but require huge models and often uploads.
Which format is best?
Upscale before compressing. PNG in, PNG out preserves the most quality.
Can I upscale beyond 4×?
Run the tool twice — 4× then 2× gives 8×. Quality degrades with each pass.