Enlarge an image to 2x or 4x size - fast classic resampling, optionally AI-enhanced on WebGPU devices. No upload.
Running locally on your device ...
Running locally on your device ...
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Your files never left your device
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No re-upload neededThese tools accept .PNG - your file is handed over directly.
No. Everything runs in your browser - your file never leaves your device. How this is verifiable
Making a too-small image bigger without it turning mushy is a common task before printing, for a larger display, or to give an old photo new life. This tool offers two real methods in one: a fast classic upscale that works instantly on any device, and optionally an AI model that delivers sharper results on devices with suitable graphics-chip support (WebGPU).
By default the fast classic method runs: a high-quality enlargement right in the browser, typically in under a second. Turn on "AI quality" and the tool automatically checks whether your device genuinely supports WebGPU. If it does, a real AI model (Real-ESRGAN, open source, BSD-3-Clause licensed) upscales the image in small tiles and reassembles it - depending on image size that can take a few seconds to a couple of minutes. Without WebGPU available, the tool honestly keeps using the classic method automatically instead of forcing a painfully slow AI computation on a single processor core.
The result's filename tells you which path actually ran: a result with the "-ai" suffix was computed by the AI, one without it came from the classic method. Very large images also use the classic method for time reasons, even with "AI quality" turned on. Everything happens locally in your browser - your image is never uploaded, and it even works offline after your first visit.
| Input formats | JPG, JPEG, PNG, WEBP |
|---|---|
| Auto-conversion | GIF, BMP, TIFF, ICO, SVG, HEIC, PDF, DOCX, DDS, HDR, PCX, WBMP |
| Output formats | PNG, JPG, WebP |
| Batch processing | No |
| Processing | Locally in your browser (WebAssembly) |
| File upload | None |
Limitations: The classic method is always instantly available. AI quality only runs on devices with genuine WebGPU graphics-chip access in the browser; without it, the classic method is used automatically with no error shown. Very large images (roughly more than 40 tile sections) also use the classic method for time reasons. The "-ai" filename suffix tells you which path ran. Without WebGPU, AI computation over a single processor core is impractically slow for a normal photo (several minutes) - so it is deliberately not attempted automatically there.
No. Both methods run entirely locally in the browser - even in airplane mode. Your image never leaves your device.
Classic is a fast, high-quality standard enlargement that runs instantly on any device. AI quality uses a real AI model for potentially sharper detail, but needs a WebGPU-capable graphics chip and more time.
By the filename: an "-ai" suffix means the AI computed it; without that suffix, the classic method was used.
If your device does not support WebGPU or the image is very large, the tool honestly and automatically switches to the classic method instead of forcing a painfully slow computation.
Yes, completely free, no account and no limit on how often you use it.
Remove background · Circle Crop · Watermark image · Round Image Corners