CR2 vs JPG
A detailed comparison of Canon RAW CR2 and JPEG Image — file size, quality, compatibility, and which format to choose for your workflow.
Canon RAW CR2
Raster & Vector ImagesCR2 is Canon camera RAW format containing unprocessed sensor data.
About CR2 filesJPEG Image
Raster & Vector ImagesJPEG is the most widely used lossy image format on the web. It achieves small file sizes through adjustable compression, making it ideal for photographs and complex images where some quality loss is acceptable.
About JPG filesStrengths Comparison
CR2 Strengths
- Mature — 13 years of camera bodies and tooling.
- Preserves every bit of Canon sensor data for post-processing.
- Embedded JPEG preview makes browsing fast.
- Supported by every major raw processor.
JPG Strengths
- Excellent compression ratio for photographs (10:1 or better without visible quality loss).
- Universal support — every camera, phone, OS, and browser reads JPEG natively.
- Adjustable quality setting balances file size against visual fidelity.
- Embeds EXIF metadata (camera model, GPS, exposure) automatically.
- Progressive rendering for graceful loading over slow networks.
Limitations
CR2 Limitations
- Proprietary — no official spec, tool support depends on reverse engineering.
- Canon-only tags (Picture Styles, DPP adjustments) are lost when processed outside DPP.
- Superseded by CR3 in 2018 — format is frozen.
- File sizes are large (20-40 MB typical).
JPG Limitations
- Lossy — every save degrades the image further (generation loss).
- No transparency channel (use PNG or WebP for that).
- Visible compression artifacts on text, sharp edges, and flat colors.
- Limited to 8 bits per channel — poor for HDR or print work.
- Baseline JPEG tops out at 65,535 × 65,535 pixels.
Technical Specifications
| Specification | CR2 | JPG |
|---|---|---|
| MIME type | image/x-canon-cr2 | image/jpeg |
| Extension | .cr2 | — |
| Container | TIFF/EP with Canon private tags | — |
| Bit depth | 14-bit (most bodies); 12-bit (some) | — |
| Successor | .cr3 (EOS M50 onward, 2018) | — |
| Compression | — | Lossy — Discrete Cosine Transform + quantization + Huffman coding |
| Color depth | — | 8 bits per channel (24-bit RGB or 8-bit grayscale) |
| Max dimensions | — | 65,535 × 65,535 pixels (baseline) |
| Transparency | — | Not supported |
| Typical quality | — | 75–90 for web, 95+ for print |
Typical File Sizes
CR2
- 22 MP CR2 (5D Mark III) 25-35 MB
- 50 MP CR2 (5DS/5DS R) 55-75 MB
JPG
- Phone photo (12 MP, quality 85) 2–5 MB
- Web thumbnail (400px) 20–60 KB
- Full-page magazine photo 500 KB – 2 MB
- Social-media square (1080×1080) 100–400 KB
Ready to convert?
Convert between CR2 and JPG online, free, and without installing anything. Encrypted upload, automatic deletion after 2 hours.
Frequently Asked Questions
CR2 (Canon RAW CR2) is an image format used to store raster graphics — a two-dimensional grid of pixels describing a picture. It is part of the raster & vector images family and designed around a specific trade-off between file size, visual fidelity, and feature support (transparency, colour depth, compression type). Photographers, web designers, and content creators choose CR2 when its particular strengths match the publishing target.
JPG (JPEG) is the most widely used image format, developed by the Joint Photographic Experts Group in 1992. It uses lossy compression to achieve small file sizes, making it the standard for digital photography, web images, and social media.
Most desktop photo viewers (Windows Photos, macOS Preview, GIMP, Photoshop, Affinity Photo) open CR2 natively. On mobile, iOS Photos and Google Photos display CR2 in the gallery when supported by the OS. If the format is rare or new, convert to JPG or PNG first — both are universally readable — using our CR2 to JPG or CR2 to PNG converter.
JPG files can be opened by virtually any image viewer or editor, including Windows Photos, macOS Preview, Adobe Photoshop, GIMP, and all web browsers.
Upload the CR2 to KaijuConverter and pick a target format (JPG, PNG, WebP, HEIC, TIFF, BMP, SVG, PDF). The conversion runs in the browser via ImageMagick and returns a download in seconds. No account or installation required; both input and output delete automatically within two hours.
It depends on the task. JPG is the smallest file size for photographs; PNG is lossless with transparency; CR2 has its own niche that may favour colour depth, animation, or encoding efficiency over one or both of those. For the final web publish, test all three and measure file size plus visible quality on real content.