Free online PNG→Radiance HDR converter. Fast, private, no sign-up.
Need to turn a PNG file into a Radiance HDR file? This converter does it in seconds and downloads the result automatically. Drop in your PNG file (a .png) 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.
PNG is a lossless format that preserves every pixel and supports full alpha transparency — the standard for logos, icons, screenshots and any graphic with crisp edges or text. The trade-off is larger files than lossy formats for photographs.
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 PNG 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 PNG are flattened onto a solid background during conversion.
Typical uses: preparing assets for a website, attaching a file someone else can definitely open, or standardising a folder of mixed files into one format.
Privacy is the default here. Your PNG 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 PNG 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.