DNG to ICO Converter

Convert DNG images to ICO format instantly in your browser. 100% client-side — no uploads, no servers, no tracking.

Converter Media & Files
Input — DNG
Drop your DNG file here
Or click to browse
100% local. Nothing is uploaded.
Detected:
Dimensions
File Size
Loading decoder…
Output — ICO
DNG → ICO
Resize Options
Leave blank to keep original dimensions.
Download ICO
Drop a DNG file above, then click Convert.
Source
Output
Input Size
Output Size

FAQ

Is my DNG file uploaded anywhere?

No. All processing happens entirely in your browser using JavaScript and WebAssembly. Your file never leaves your device. Nothing is sent to any server.

What's the maximum file size?

There's no hard limit — it depends on your browser's available memory. Most files up to 50MB convert without issues. Very large files (100MB+) may be slow on older devices.

Why does the first conversion take longer?

DNG requires a WebAssembly decoder that's downloaded once on first use (~1-3MB). It's cached by your browser, so subsequent conversions are instant.

Can I convert multiple files at once?

This tool handles one file at a time. For batch conversions, use the Universal Converter.

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