Bulk ICO to HDR Converter — Free, No Upload
Convert multiple ICO files to HDR instantly — all in your browser. No file limits, no watermarks, and completely private.
Drop ICO files here or click to browse
Supports batch selection — convert hundreds of files
Why convert ICO to HDR?
Have you ever tried using a ICO image on a platform that doesn't support it? That's frustrating. By converting to HDR, you get a universally compatible lossless file that works everywhere. This conversion processes your files entirely in your browser using WebAssembly – no upload, no server, no privacy concerns. Perfect for sensitive or large batches.
Technical comparison: ICO vs HDR
How to use — 3 simple steps
Popular use cases for ICO → HDR
When you need transparency support – convert from ICO to HDR
To reduce image file size by up to 80% without visible quality loss (ICO → HDR)
For archiving old ICO images in a future-proof, well-supported format (HDR)
Bulk processing an entire folder of ICO screenshots to HDR for documentation
💡 Pro tips
- If your image has transparency, consider converting to PNG instead to preserve it
- Use the ZIP download to get all converted files in a single click
- All processing is private — files are never uploaded to any server