Free browser tool
Upscale images with AI
Enlarge small or pixelated photos with a fast canvas resampler or an AI super-resolution model that rebuilds detail. Both run on your own device — your image is never uploaded, and the result has no watermark.
Upscale an image No upload · no sign-up
Nothing uploads No account No watermark
Drop a file to start
Runs right here in your browser
0
bytes uploaded
€0
forever
Private by design
Your image never leaves your device — no upload, no tracking. Ever.
Instant, in-browser
Runs on your own machine with no server round-trip. Most edits finish in seconds.
Free, no catch
No account, no watermark, no usage caps. Free forever.
How it works
Three steps, no setup
Drop your image.
Pick Fast (multi-pass resample) or AI (Swin2SR super-resolution), and a 2×/3×/4× factor.
Download the enlarged image.
Good to know
Frequently asked
- Does the AI upscaler run on a server?
- No. The Swin2SR model runs in your browser. The first AI upscale downloads a ~21 MB model once, then it is cached and nothing is uploaded.
- When should I use AI instead of Fast mode?
- Use AI for pixelated, low-resolution, or JPEG-degraded photos — it reconstructs detail. Fast mode is instant and fine for a clean image that just needs to be bigger.
- How much can I enlarge an image?
- Up to 4×. AI mode caps the input at 512 px on the long side to stay within browser memory, producing up to a 2048 px result.