100% Free No Upload Bulk Conversion

Bulk HDR to ICO Converter — Free, No Upload

Convert multiple HDR files to ICO instantly — all in your browser. No file limits, no watermarks, and completely private.

HDR ICO  ·  ZIP
Bulk HDR → ICO Converter
Select files, convert, download ZIP — all locally
HDR Support is coming soon — we are working on it.

Drop HDR files here or click to browse

Supports batch selection — convert hundreds of files

HDR → ICO ZIP
0 files
Converting 0 / 0
✓ Conversion completed! All files converted successfully. Click Download ZIP to save them.

Why convert HDR to ICO?

convert.dynamic_reason.template_5 convert.dynamic_reason_closing.closing_5

Technical comparison: HDR vs ICO

PropertyHDRICO
Full nameHigh Dynamic Range ImageIcon Image Format
Compression Lossless Lossless
Color depth32-bit float32-bit
Transparency No Yes
Web support No Yes
Developed byRadiance / Greg Ward (1989)Microsoft (1985)
Max colorsfloating point16.7M
MIME typeimage/vnd.radianceimage/x-icon
Category Raster image Raster image
Year gap 4 years apart in technical development
Best for High dynamic range photography Website favicons and app icons
Estimated size change Typically 10%-20% smaller

How to use — 3 simple steps

1
Select your HDR files
Drag & drop or click to choose multiple HDR images. No file size restrictions.
2
Start the conversion
Click "Convert to :to" — your files are processed locally using WebAssembly. No upload, no waiting.
3
Download ZIP archive
All converted ICO files are bundled into a single ZIP. One click, everything saved.

Popular use cases for HDR → ICO

convert.usecases_groups.group_7.0

convert.usecases_groups.group_7.1

convert.usecases_groups.group_7.2

convert.usecases_groups.group_7.3

💡 Pro tips

  • Use the ZIP download to get all converted files in a single click
  • All processing is private — files are never uploaded to any server

Frequently Asked Questions

convert.faq_groups.group_11.0.a
convert.faq_groups.group_11.1.a
convert.faq_groups.group_11.2.a
convert.faq_groups.group_11.3.a
Applicazione offline!