Edit CR2 Files Online
Open Canon RAW version 2 (CR2) files from Canon cameras right in your browser — decode, color grade and export JPEG in minutes. Free, no upload, no software to install.
What is a CR2 file?
CR2 is the RAW format produced by Canon EOS 5D Mark IV, 6D, 80D, 7D Mark II, 700D/Rebel T5i and other DSLR-era EOS cameras. CR2 was Canon’s RAW format for over a decade of DSLRs, so hundreds of millions of these files exist — and they open here instantly, no Canon software needed.
Because CR2is a RAW format, most image viewers and web tools can't open it. OpticRaw decodes it with LibRaw — the same engine used by professional desktop software — compiled to WebAssembly so it runs locally in your browser.
How to edit a CR2 file online
- Open OpticRaw and drag your CR2 file into the window.
- Wait a few seconds while the RAW is decoded (your camera's white balance is applied as the starting point).
- Edit with Lightroom-style tools: exposure, tone curve, HSL color mixer, color grading wheels, masking brush, crop & straighten.
- Click Export to save a full-resolution JPEG or PNG.
Why edit CR2 instead of JPEG?
RAW keeps the full sensor data: highlights you can pull back, shadows you can lift cleanly, and white balance you can change after the fact. Editing the CR2 file gives dramatically better results than editing the camera JPEG — especially for exposure mistakes and tricky light.
Just need a JPEG? You can also convert CR2 to JPG in one click — full resolution, many files at once.
Also works with other RAW formats
ARW (Sony) · CR3 (Canon) · ORF (Olympus / OM System) · PEF (Pentax) · NEF (Nikon) · DNG (Adobe (universal)) · RAF (Fujifilm) · RW2 (Panasonic) — plus SRW, NRW, SR2, 3FR, IIQ and more.
Frequently asked questions
Can I open CR2 files online for free?
Yes. OpticRaw decodes CR2 files directly in your browser using LibRaw (WebAssembly) — free, no watermark, no account.
Is my CR2 file uploaded to a server?
No. The file is decoded and edited entirely on your device. It never leaves your computer.
How do I convert CR2 to JPEG?
Open the CR2 file, make any adjustments you want (or none), then click Export and choose JPEG. You get a full-resolution JPEG in seconds.
Do I need Lightroom or Photoshop to edit CR2?
No. This editor gives you Lightroom-style tools — tone curve, HSL mixer, color grading wheels, masking, crop — right in the browser.
Does editing change my original CR2 file?
Never. Editing is non-destructive: the original RAW file stays untouched and you export a separate JPEG or PNG.
Works in Chrome, Edge, Firefox and Safari. Your photos are processed on your device and never uploaded.