RunConvert

CR3 Converter

Convert files to and from CR3 online for free. Fast, secure, and high-quality file conversion with no sign-up or software required.

Free to useNo file stored beyond 1 hourEncrypted over TLS 1.2/1.3No watermarks

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How it works

Three steps to your converted file

Everything happens in your browser tab - upload, pick a format, download. The heavy lifting runs on our servers.

01

Upload your file

Drag and drop, click to browse, or paste a URL. Batches take up to 20 files at once - 230+ input formats across video, audio, image, document, and archive types.

02

Choose an output format

Pick from over a hundred output formats. Filter by category or search by name - every option is open to everyone, no account needed.

03

Convert & download

Hit Convert and grab your download link moments later. Originals are erased when the job completes; results are cleared within about an hour.

What is a CR3 file?

The CR3 format is the third-generation raw image container developed by Canon Inc., introduced in 2018 with the EOS M50. It utilizes the ISO Base Media File Format (ISO/IEC 14496-12), replacing the TIFF-based structure of its predecessor, CR2. CR3 files store unprocessed sensor data and support C-RAW (Compact RAW) compression, which reduces file size by approximately 40% compared to standard RAW without significant degradation in dynamic range. The format encapsulates distinct metadata tags, EXIF data, and a full-resolution JPEG preview within a CIFF (Camera Image File Format) hierarchy.

How to open a CR3 file

Windows and macOS require the installation of the Canon RAW Codec or specific OS-level extensions (such as the Microsoft Raw Image Extension) to view CR3 thumbnails natively. For editing and full processing, Canon provides the Digital Photo Professional (DPP) software. Third-party post-production suites like Adobe Lightroom Classic (version 8.0+), Capture One, and DxO PhotoLab offer comprehensive support for CR3 demosaicing and color grading.

CR3 Technical Info

Full Name
Canon Raw 3
Developed By
Canon Inc.
Initial Release
2018
MIME Type
image/x-canon-cr3

Why RunConvert

The fastest way to convert any file

Purpose-built for speed, privacy, and breadth of format support.

3,000+ conversions supported

Every popular and niche format covered - video, audio, image, document, archive and more. New formats added regularly.

Fast, cloud-powered

No queue, no waiting. Files are processed on high-performance servers and returned in seconds, even for large files.

Secure & private

Encrypted in transit and never shared with anyone. Uploads are erased the moment your job completes, and results shortly after.

Free - no account needed

Convert without creating an account - no credit card, no trial clock. Sign in only if you want history and higher daily limits.