CR2 to MJPEG Converter

CR2 to MJPEG Converter

CR2 is a Canon RAW photo — a single still image straight off the sensor. A raw MJPEG (.mjpeg) is a bare video stream where every frame is an independent JPEG, with no container and no audio. This conversion renders your RAW photo, JPEG-compresses it, and repeats that one image as identical frames in a Motion JPEG stream — the result is silent, motionless, and barely playable outside FFmpeg-class tooling. It exists for a narrow niche: feeding a single test image into machine-vision or capture pipelines that consume MJPEG. If you simply want a normal picture from your CR2, convert CR2 to JPG instead — that produces a single ordinary JPEG. If you want the photo as a short, playable video clip, convert CR2 to MP4 gives you an H.264 file that opens on phones, browsers, and everyday players.

CR2 (Canon RAW v2) Format at a Glance

MJPEG (Motion JPEG) Format at a Glance

What You Actually Get From This Conversion

Be clear about the output before you run it. A CR2 holds one photograph. Turning it into a raw MJPEG does three things in sequence: it renders the RAW (demosaics the sensor data into a viewable image), compresses that image as a JPEG, and then repeats that identical JPEG as a run of frames to make a stream. There is no motion — every frame is the same picture — and there is no sound, because raw MJPEG carries no audio track. Because each frame is a fresh JPEG, the result is lossy, and a stream of full-frame JPEGs is far larger than the single JPEG you would get from CR2 to JPG.

For almost everyone, this is the wrong target. The honest use case is narrow: simulating a frame feed for a machine-vision or test-harness pipeline that specifically ingests Motion JPEG, where you need a known still repeated as MJPEG frames. If that is not exactly your job, a single JPEG (CR2 to JPG) or a playable clip (CR2 to MP4) will serve you better.

How to Convert CR2 to MJPEG

1. Upload Your CR2 File: Drag and drop your .cr2 photo onto the page, or click "+ Add Files" to pick it from your computer. Multiple files use the same settings.
2. Set the Quality Preset: Open Advanced Options and choose a Preset under Quality Preset — "Very High (Recommended)" keeps the rendered frame sharp; lower presets shrink the per-frame JPEG and the overall stream.
3. Set Image Duration and Resolution (Optional): Use Image Duration to control how long the still is held (seconds per frame), and under Video resolution pick "Keep original", a Preset Resolution, or a custom Width × Height to downscale and tame MJPEG's large size. Leaving resolution on "Keep original" preserves the full rendered dimensions.
4. Convert and Download: Click "Convert" and download your .mjpeg stream. No sign-up, no watermark.

Frequently Asked Questions

Why would I convert a CR2 photo to MJPEG instead of JPG?

For almost no everyday reason. A normal picture from a CR2 is a single JPEG — use CR2 to JPG for that. MJPEG only makes sense when a downstream system specifically consumes a Motion JPEG stream, such as a machine-vision or capture pipeline that expects frames in MJPEG and you need to feed it a known still image repeated as frames.

Will the MJPEG show any motion?

No. A CR2 is one photograph, so the stream is your single rendered image repeated as identical frames. Nothing moves and there is no audio — a raw .mjpeg carries no sound track. If you want the photo presented as a real, playable clip, convert CR2 to MP4 instead.

Will I lose quality going from CR2 to MJPEG?

Yes, some. CR2 holds the full RAW sensor data, but MJPEG stores each frame as a lossy JPEG, so rendering the RAW and JPEG-compressing it discards detail RAW preserves. A high Quality Preset keeps the loss small, but MJPEG is not lossless and cannot retain RAW's full latitude for later editing.

Is there a single official MJPEG specification this outputs?

No — there is no document universally recognized as a complete Motion JPEG specification. Microsoft defines a variant for AVI, Apple defines MJPEG-A and MJPEG-B for QuickTime, and RFC 2435 defines MJPEG over RTP. This tool outputs a raw .mjpeg elementary stream — a plain sequence of JPEG frames — which is the most portable form for editing and machine-vision tools that read frames directly.

What software plays a raw .mjpeg file?

Frame-oriented players and editors handle it: VLC, FFmpeg/ffplay, and most non-linear editors open raw MJPEG, and many machine-vision libraries decode it directly. General-purpose consumer players and browsers often will not, because a raw .mjpeg has no container or audio. In our testing, a single CR2 rendered to a raw .mjpeg stream opened cleanly in ffplay but would not preview as a normal video file in a stock OS media player — expected behavior for a bare elementary stream. For broad playback, use CR2 to MP4.

Does the MJPEG keep the 14-bit color from my CR2?

No. CR2 records up to 14 bits per channel, but JPEG — and therefore every MJPEG frame — is 8-bit per channel. The conversion renders the RAW down to 8-bit and JPEG-compresses each frame, so the extra tonal headroom in the RAW is not preserved. Keep the original .cr2 if you need that latitude for editing.

How are my uploaded files handled?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.