CR2 to WebP Converter
Convert CR2 to WebP in your browser. The large JPEG preview in the first directory is what gets converted; it carries the Picture Style that was active when you shot. No raw development happens here. You get a lossy WebP at the quality you choose (lossless under More options), keeping transparency. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
RAW expected · other image formats also work
How to use CR2 to WebP
- 1
Add your CR2 files: drop them here, choose them, or paste from the clipboard.
- 2
Set the quality. 80 to 85 is visually close to the original for most photos.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .webp files one at a time or together as a ZIP.
Why use Aback Images for cr2 to webp
Where the WebP goes next
WebP opens in every current browser, Windows, macOS, Android, and recent Photoshop, GIMP and Affinity.
WebP next to CR2
The WebP is made from the camera's 8-bit preview, so it is a small fraction of a 20 to 50 MB raw file.
A second JPEG generation
The pixels come from the JPEG preview the camera embedded in the CR2, so they have been compressed once already; keep the quality at or above the default.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
CR2 vs WebP
What changes from CR2 to WebP
Encoding: the CR2 uses lossless JPEG-compressed sensor data, cut into vertical slices; WebP uses lossy VP8 coding or lossless VP8L, and the download is a lossy WebP at the quality you choose (lossless under More options), keeping transparency.
Bit depth: 12 or 14 bits per channel in the CR2; WebP allows 8 bits per channel, and the WebP written here has 8 bits per channel. The sensor's 14 bits are not used: the 8-bit camera preview is converted.
Colour: camera RGB from a Bayer mosaic, with the Picture Style recorded in the maker notes in the CR2; WebP supports RGB; lossy WebP stores colour at half resolution (4:2:0), written here as 8-bit sRGB.
Metadata: the CR2 can carry EXIF, Canon maker notes (Picture Style, lens, focus points) and the embedded previews; WebP can carry EXIF, XMP and ICC chunks, but nothing is copied across.
About CR2
CR2 is the raw format of Canon EOS cameras from 2004 until CR3 replaced it in 2018. It holds the sensor's 12 or 14-bit readings, losslessly compressed, plus a large JPEG preview rendered with the camera's Picture Style.
CR2 is TIFF-based: the TIFF header is followed by the letters 'CR' and version 2.0, then four image directories: a large JPEG preview with the EXIF block, a 160×120 thumbnail, a small uncompressed RGB image, and the sensor data as lossless JPEG cut into vertical slices.
CR2 files usually come from Canon EOS DSLRs made from 2004 to 2018, such as the 5D Mark II and III, 6D, 7D and the Rebel series.
About WebP
WebP is Google's web image format. It supports lossy and lossless compression, transparency and animation, and is typically 25 to 35 percent smaller than JPEG at the same visual quality.
A WebP is a RIFF file: 'RIFF', a length, 'WEBP', then chunks. A simple lossy file is one VP8 chunk and a lossless one is VP8L; the extended VP8X header announces alpha, animation, ICC, EXIF or XMP chunks.
When converting CR2 to WebP makes sense
WebP is the better choice for images on websites and in apps, while CR2 suits editing Canon photos in a raw developer.
WebP strengths: 25-35% smaller than JPEG; Transparency and animation in one format; Supported by every modern browser. Drawbacks to weigh: Some older desktop apps and photo printers cannot open it; Max 16383 px per side.
Limitations
- The 14-bit sensor data, with its highlight and shadow latitude, is not developed here; use a raw editor when you need to recover detail.
- A few older desktop apps, print services and upload forms still reject WebP; keep a JPG or PNG copy for those.
- WebP images are limited to 16383 pixels on each side.
More conversions
Related tools
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Frequently asked questions
Does converting CR2 to WebP lose quality?
WebP is lossy, so detail the eye barely notices is discarded to save space. The CR2's preview is a camera JPEG already, so keep the quality high to avoid stacking artefacts. The sensor's 14 bits are not used: the 8-bit camera preview is converted.
What quality should I choose for WebP?
80 to 85 is visually close to the original for most photos. Go lower for thumbnails, or switch on Lossless under More options for screenshots and graphics.
Which apps open WebP files?
Every current browser, Windows, macOS, Android, and recent Photoshop, GIMP and Affinity.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.