Upscale Image

Enlarge an image with high-quality on-device resampling.

Open Upscale Image

What this tool accepts

.JPG, .JPEG, .PNG input · .JPG, .PNG output

Local safeguards

Up to 10 JPG/PNG files · 20 MB each · 60 MB combined. 12 MP / 6,000 px per image · 60 MP per batch · 16 MP / 8,192 px max output · animated PNG: first frame only · 48 MB per generated file · 128 MB generated files combined · 128 MB max result

Private and offline-capable

Processing happens in this browser. Files are not uploaded, and generated results remain in memory until downloaded or the tab is closed. After the first successful production load, the app shell and local processing engines can work offline.

Related tools

Free and open source

Inspect how Local File Studio processes your files, run your own copy, or help improve the tools. Application code is available under Apache License 2.0; bundled libraries and assets retain their own licenses.

View source on GitHub · Contribute · Apache 2.0 license · Third-party notices

Links open in a new tab. GitHub requires a connection; the license and notices are included in the offline app.