How to Convert ARW to HDR — Quick & Free
Fast, instant ARW (SONY) to HDR conversion. No signup required. Just drop your .arw file and get .hdr in seconds.
Batch Settings
Some metadata may not survive
Your ARW file may contain EXIF, MakerNote, XMP metadata. HDR has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
Dans l'univers exigeant de l'imagerie numérique, la conversion de fichiers est une étape courante, voire indispensable, pour de nombreux professionnels et passionnés. Si vous travaillez avec des fichiers ARW, le format RAW propriétaire de Sony, vous savez que leur richesse en données offre une flexibilité incroyable en post-production. Cependant, pour des applications spécifiques nécessitant une plage dynamique étendue au-delà de ce qu'un fichier RAW standard peut offrir, la conversion en HDR (High Dynamic Range) devient essentielle. Cette transformation permet de fusionner plusieurs expositions d'une même scène, révélant des détails subtils dans les zones les plus claires comme les plus sombres. Que ce soit pour sublimer un cliché architectural, optimiser une image pour l'impression ou préparer un visuel pour le web, maîtriser cette conversion vous ouvre de nouvelles perspectives créatives et techniques. Découvrez comment passer efficacement de l'ARW au HDR pour des rendus d'une qualité et d'un réalisme saisissants.
- Expertises immobilières (suivi de chantier, valorisation)
- Publications scientifiques (imagerie médicale, photographie de spécimens)
- Rendus 3D et visualisations architecturales
En France, en Belgique et en Suisse, le HDR gagne en popularité dans la production de contenu pour les écrans de nouvelle génération, notamment pour les expositions et le secteur du luxe, où la fidélité des couleurs et la profondeur des détails sont primordiales. Au Québec, l'intégration du HDR dans les outils de modélisation du patrimoine est également en croissance, permettant une meilleure documentation visuelle.
About ARW (SONY) to HDR Conversion
Short answer: yes, you can convert ARW to HDR online for free, and quality is well preserved with the right settings. Just upload your .arw file to CocoConvert, pick HDR as the output, and click Convert. The whole process takes seconds.
Now for the details. ARW is Sony's RAW photo format preserving the full dynamic range captured by the sensor. HDR (Radiance) is a high-dynamic-range image format used in lighting and rendering. Converting between these two formats lets you convert between formats quickly.
Full Name: ARW uses Sony Alpha RAW, while HDR uses Radiance HDR Image. Compression: ARW uses Lossless, while HDR uses Lossless. Transparency: ARW uses No, while HDR uses No.
Your ARW file is decoded and re-encoded as HDR. Converting ARW to HDR maintains high quality with CocoConvert's optimised encoder settings.
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 ARW (SONY) to HDR
- 1
1. Upload ARW
Drop your .arw file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select HDR
Choose .hdr 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 .hdr file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert ARW (SONY) to HDR
Your ARW image is decoded into raw pixel data, then re-encoded as HDR. No quality loss — pixel data is preserved exactly.
Your ARW file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using Radiance HDR Image's lossless compression
Metadata (EXIF, ICC profiles) is transferred where HDR supports it
The HDR file is saved and ready for download
ARW (SONY) vs HDR — Detailed Comparison
| Feature | .ARW | .HDR |
|---|---|---|
| Full Name | Sony Alpha RAW | Radiance HDR Image |
| Compression | Lossless | Lossless |
| Transparency | No | No |
| Animation | No | No |
| Color Depth | 14 bits/channel | 32-bit float (RGBE encoding) |
| HDR Support | Yes | Yes |
| Typical File Size | 25–50 MB per photo | 5–50 MB |
| Platform Support | Limited | Very Limited |
| Browser Support | none | none |
| Year Created | 2006 | 1985 |
| Open Standard | No | Yes |
Should You Convert ARW (SONY) to HDR?
When to Convert
- ✓When you specifically need a HDR file for your workflow
Frequently Asked Questions
Is ARW to HDR conversion free?
Yes. CocoConvert offers free ARW to HDR 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 ARW to HDR 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 ARW file and the converted HDR file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting ARW to HDR lose quality?
Converting ARW to HDR maintains high quality with CocoConvert's optimised encoder settings.
Can I convert HDR back to ARW?
Yes, CocoConvert supports HDR to ARW conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.