ICO to HDR Converter (.ico to .hdr)

Convert Windows & Website Favicon Icon (.ico) files to Radiance RGBE High Dynamic Range Image (.hdr) directly on your device. ICO is commonly used for website favicons, windows `.exe` application icons, and desktop shortcut emblems, while HDR is ideal for 3d rendering environment maps in blender, cinema 4d, unreal engine, and maya. Every conversion runs locally in your browser with zero server uploads.

100% On-Device Processing • Files Never Leave Your Browser (0 KB Uploaded)

Why Convert ICO to HDR Locally?

Generate favicons and app icons for unreleased brands without leaking logos to external icon generators. Unlike cloud converters that upload your .ico files to remote servers, Artoons processes your files directly on your device.

How to Convert ICO to HDR

  1. Download the free Artoons Desktop App to enable the native ICO conversion engine.
  2. Drop your .ico files or folders into the queue and select HDR (.hdr).
  3. Click Convert to save your .hdr files locally with no file size limits.

Frequently Asked Questions

Do my ICO files ever get uploaded anywhere?

Never — 100% of the conversion runs locally inside your own device memory with 0 KB sent over the network.

Will ICO to HDR look or sound worse?

Quick heads-up: ICO keeps see-through backgrounds, whereas HDR doesn't — transparent areas get filled with a clean solid backdrop. You can also tweak output quality in Preferences anytime.

How big of a .ico file can I convert here?

Automatically resizes and packages crisp PNG/BMP icon frames directly in your browser.

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