RAW files are original, uncompressed image data captured directly from your camera’s sensor. They preserve maximum detail for post-processing but often can’t be opened with default tools. Below are proven ways to open RAW files on different devices.
What Is a RAW File (and Why It Won’t Open)
A RAW file is a container with unprocessed sensor data (Canon CR2/CR3, Nikon NEF, Sony ARW, etc.).
Unlike JPG, RAW requires a decoder (codec) to render the image.
A file may fail to open if:
- your system lacks the proper RAW codec;
- your OS or image viewer is outdated;
- the file is corrupted or uses an unsupported format.
Source: Adobe, “Understanding RAW Files”, 2025.
🪟 How to Open RAW Files on Windows 10/11
✅ Method 1: Install the Raw Image Extension
Microsoft provides a free extension:
- Open Microsoft Store.
- Search for “Raw Image Extension”.
- Install and restart File Explorer.
Thumbnails and previews for RAW images will now appear directly in the Photos app.
📖 Source: Microsoft Support — “Install the Raw Image Extension”, 2025.
✅ Method 2: Use Free RAW Viewers
- FastStone Image Viewer — lightweight, supports CR2, NEF, ARW.
- IrfanView + RAW plugin — handles most camera brands.
- XnView MP — cross-platform and fast.
✅ Method 3: View and Convert RAW Online
If the extension doesn’t help, you can open and convert RAW online:
👉 Convert RAW to JPG online
🍏 How to Open RAW Files on macOS
macOS has built-in RAW support in Preview and Photos.
- Double-click the file → it opens in Preview.
- If you get an error, update macOS (Apple frequently adds new camera models).
- For advanced editing, use Adobe Lightroom, Capture One, or Affinity Photo.
📖 Source: Apple Support — “Supported RAW camera formats in macOS”, updated 2025.
💡 Tip: If Preview doesn’t support your camera, use an online converter to export to JPG or DNG.
📱 How to Open RAW on Mobile (iPhone and Android)
iPhone (iOS 14+)
- The Photos and Files apps natively support RAW.
- For editing, try Darkroom, Halide, or Lightroom Mobile.
Android (Android 10+)
- The default Gallery app often doesn’t open RAW.
- Install Snapseed or Adobe Lightroom Mobile.
- Or simply open the file in your browser at
👉 pic-convert.com/raw-formats — quick and installation-free.
🔍 Best RAW File Viewers for Windows and Mac
| Software | Platform | Key Features |
|---|---|---|
| Adobe Lightroom | Windows/Mac | Professional editing and cataloging |
| FastStone Viewer | Windows | Free, lightweight RAW viewer |
| Apple Photos | Mac | Integrated, updates with macOS |
| RawTherapee | All OS | Open-source Lightroom alternative |
📖 Source: DPReview Labs, “Top RAW Viewers 2025”.
🧩 What to Do If a RAW File Still Won’t Open
- Check if the file is corrupted.
- Make sure your OS is up to date.
- Try a different viewer (FastStone, RawTherapee).
- If nothing helps — convert RAW → JPG online.
🎯 Conclusion
RAW files require specialized tools, but you can open or convert them easily and for free:
- Install the correct codec (Windows/macOS),
- Use mobile photo apps,
- Or just convert RAW files to JPG online at
