Photo Editor

Adjust brightness, contrast, and saturation or add a text caption.

Open Photo Editor

What this tool accepts

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

Local safeguards

1 JPG/PNG/WEBP file · 30 MB. 16 MP / 8,192 px per image · animated PNG/WebP: first frame only · 500 characters max in caption · 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.