How to Convert HDR to PNG — Quick & Free
Fast, instant HDR to PNG conversion. No signup required. Just drop your .hdr file and get .png in seconds.
Batch Settings
HDR data will be tone-mapped
Your HDR file may contain HDR (High Dynamic Range) data. PNG only supports standard dynamic range (SDR). Highlights and shadows will be compressed to fit the 8-bit range — subtle detail in very bright or dark areas may be lost.
La conversion de fichiers HDR (High Dynamic Range) en PNG (Portable Network Graphics) est une opération courante mais essentielle pour de nombreux professionnels et passionnés. Alors que le format HDR excelle dans la capture d'une vaste gamme de lumières et de couleurs, offrant une fidélité visuelle inégalée pour l'édition et l'archivage, le PNG se distingue par sa compatibilité universelle, sa compression sans perte et sa capacité à gérer la transparence. Cette transition est souvent nécessaire pour l'intégration web, le partage sur des plateformes grand public ou l'inclusion dans des documents bureautiques, où les spécificités du HDR pourraient poser des problèmes de lecture ou de performance. Notre outil vous permet de réaliser cette conversion avec précision, en préservant au mieux la qualité de votre image tout en l'adaptant aux exigences d'un format plus polyvalent et largement supporté.
- Présentations architecturales (France)
- Publications scientifiques (Suisse)
- Catalogues d'art numérique (Québec)
Dans les industries créatives francophones, notamment le design graphique et la post-production au Benelux, le passage du HDR au PNG est fréquemment utilisé pour la diffusion de maquettes clients ou l'intégration dans des chaînes de production standardisées, où la légèreté du PNG est appréciée.
About HDR to PNG Conversion
Short answer: yes, you can convert HDR to PNG online for free, and some quality differences may occur depending on the format types. Just upload your .hdr file to CocoConvert, pick PNG as the output, and click Convert. The whole process takes seconds.
Now for the details. HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. PNG uses lossless compression and supports transparency, making it perfect for graphics, logos, and screenshots. Converting between these two formats lets you improve file compatibility across devices.
Full Name: HDR uses Radiance HDR Image, while PNG uses Portable Network Graphics. Compression: HDR uses Lossless, while PNG uses Lossless. Transparency: HDR uses No, while PNG uses Yes.
Your HDR file is decoded and re-encoded as PNG. Your HDR file may contain HDR (High Dynamic Range) data. PNG only supports standard dynamic range (SDR). Highlights and shadows will be compressed to fit the 8-bit range — subtle detail in very bright or dark areas may be lost.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert HDR to PNG
- 1
1. Upload HDR
Drop your .hdr file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select PNG
Choose .png from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .png file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert HDR to PNG
Your HDR image is decoded into raw pixel data, then re-encoded as PNG. No quality loss — pixel data is preserved exactly.
Your HDR file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
HDR data is tone-mapped to standard dynamic range (8-bit per channel)
Pixels are re-encoded using Portable Network Graphics's lossless compression
Metadata (EXIF, ICC profiles) is transferred where PNG supports it
The PNG file is saved and ready for download
HDR vs PNG — Detailed Comparison
| Feature | .HDR | .PNG |
|---|---|---|
| Full Name | Radiance HDR Image | Portable Network Graphics |
| Compression | Lossless | Lossless |
| Transparency | No | Yes |
| Animation | No | No |
| Color Depth | 32-bit float (RGBE encoding) | 8 or 16 bits/channel (up to 48-bit color) |
| HDR Support | Yes | No |
| Typical File Size | 5–50 MB | 5–20 MB per photo, <1 MB for graphics |
| Platform Support | Very Limited | Universal |
| Browser Support | none | Universal |
| Year Created | 1985 | 1996 |
| Open Standard | Yes | Yes |
Should You Convert HDR to PNG?
When to Convert
- ✓Your HDR file won't open on a recipient's device or in an application
- ✓A website, service, or platform only accepts PNG uploads
- ✓You need a file that works in web browsers
- ✓You need maximum device and software compatibility
When NOT to Convert
- ✗You want to preserve HDR information — PNG only supports standard dynamic range
Frequently Asked Questions
Is HDR to PNG conversion free?
Yes. CocoConvert offers free HDR to PNG conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is HDR to PNG conversion?
Most files convert in 2–10 seconds depending on size. Large image files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded HDR file and the converted PNG file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting HDR to PNG lose quality?
Your HDR file may contain HDR (High Dynamic Range) data. PNG only supports standard dynamic range (SDR). Highlights and shadows will be compressed to fit the 8-bit range — subtle detail in very bright or dark areas may be lost.
Can I convert PNG back to HDR?
Yes, CocoConvert supports PNG to HDR conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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