Image Upscaler · 2x / 3x / 4x with optional sharpening
Upscale images 2×, 3×, or 4× using progressive bicubic resampling and optional unsharp mask. No 50MB AI model download, no upload, instant.
Drop your image
Drop an image, pick 2x / 3x / 4x, download the upscaled version. Uses progressive bicubic resampling + optional unsharp-mask. Browser-only.
Questions
- Is Image Upscaler free?
- Yes. Image Upscaler is completely free, with no account, no sign-up, and no usage limits. It runs entirely in your browser.
- Do my files get uploaded?
- No. Image Upscaler processes everything on your device, so your files never leave your browser. You can verify it yourself: open your browser's DevTools, watch the Network tab, and you'll see nothing gets sent.
- How do I use Image Upscaler?
- Upscale images 2×, 3×, or 4× using progressive bicubic resampling and optional unsharp mask. Just drop your image in above, everything happens locally in your browser, so it's instant and private.
- Is there a file size limit?
- There's no hard limit. Because Image Upscaler works locally, the only ceiling is your device's memory, larger files simply use more RAM. Nothing is capped by a server.
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