PNG to HDR Converter (.png to .hdr)

Convert Portable Network Graphics (.png) files to Radiance RGBE High Dynamic Range Image (.hdr) directly on your device. PNG is commonly used for ui graphics, logos, screenshots, transparent overlays, and sharp digital illustrations, 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 PNG to HDR Locally?

Screenshots, design mockups, and confidential documents stay 100% inside your device's RAM. Unlike cloud converters that upload your .png files to remote servers, Artoons processes your files directly on your device.

How to Convert PNG to HDR

  1. Download the free Artoons Desktop App to enable the native PNG conversion engine.
  2. Drop your .png 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 PNG 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 PNG to HDR look or sound worse?

Quick heads-up: PNG 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 .png file can I convert here?

Decoded and encoded natively via hardware-accelerated HTML5 Canvas up to 200 MB in the browser, or unlimited size in the Desktop App.

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