Free online ICO→Radiance HDR converter. Fast, private, no sign-up.
Going from ICO to Radiance HDR takes a couple of clicks: drop the file in, download the result. Drop in your ICO file (a .ico) and download a ready-to-use Radiance HDR file (a .hdr) — no software to install, no account to create, and no watermark on the output.
ICO is the Windows icon format — it packs several small sizes into one file and is what browsers request as a favicon.
Radiance HDR is an image format. Converting to or from it lets you use the same picture in apps and on platforms that expect a different format.
You'll reach for a ICO to Radiance HDR conversion whenever the other end expects Radiance HDR specifically — uploading somewhere, importing into software, or sharing with someone whose device prefers it. Under the hood the conversion runs on libvips and ImageMagick — the same libraries that power image pipelines across the web — so colour, transparency and metadata are handled correctly wherever the target format supports them.
Radiance HDR has no alpha channel, so any transparent areas in your ICO are flattened onto a solid background during conversion.
It comes up when publishing online, submitting to a service with strict format rules, or archiving a collection in a single consistent format.
Privacy is the default here. Your ICO file is uploaded over an encrypted connection, converted, downloaded the moment it's ready, and then deleted automatically a short time afterwards. We never keep your files, never build a library of your content, and never make you sign up to download the result.
Ready? Use the converter above, or explore related conversions: turn ICO into a different format, or convert another format into Radiance HDR. Everything on Convert Me Pls is free, unlimited and watermark-free.
Yes. Convert Me Pls is completely free with no sign-up, no file-count limits and no watermarks added to your output.
Your files are uploaded over an encrypted connection, converted, and then deleted automatically a short time afterwards. We never keep your files and never build a library of your content.
We use the best available encoders (libvips, ImageMagick and ffmpeg) at high-quality settings for the cleanest possible result.
Conversions run on our servers and support large files comfortably; very large media is processed in a streaming pipeline.