CR3 to AVI Converter

CR3 to AVI: One Canon Raw, One Silent Frame in a RIFF File

CR3 is Canon's current raw format, built on the ISO Base Media File Format around the crx codec and first shipped on the EOS M50 in April 2018. AVI is a great deal older: Microsoft's own reference describes it as "a RIFF file specification used with applications that capture, edit, and play back audio-video sequences", a container of hdrl, movi and optional idx1 chunks that has been part of Windows since the Video for Windows era. Converting between them is a narrow job with a specific result — the raw is developed into one ordinary frame, that frame is held on screen for a duration you set, and the whole thing is packaged as a silent AVI. There is no motion to find in a photograph, and the conversion does not pretend otherwise.

How to Convert CR3 to AVI

1. Upload Your CR3 File: Drag the .cr3 onto the page or click "+ Add Files". Queue several and Merge strategy decides between one combined file ("Merge images") and a separate AVI per photograph ("Video per image").
2. Set the Image Duration: Image Duration holds the still for anything from 1/60 of a second — effectively a single freeze frame — up to 10 seconds per frame, opening on 5 seconds. From one photograph that setting is the entire length of the file.
3. Choose the Codec, Quality and Frame Size: Video Codec opens on MPEG-4, the classic AVI payload, with Xvid, DivX, MJPEG and H.264 among the alternatives. File Compression starts on the "Very High (Recommended)" Quality Preset, and Constant Quality exposes a quality scale that runs 1 to 31 for MPEG-4. Video resolution starts on "Keep original", and Background Color — white by default — fills any bars a different frame shape creates.
4. Convert and Download: Click Convert and save the .avi. The file is uploaded over an encrypted connection, encoded on our servers and deleted automatically a few hours later — no sign-up, no watermark.

What the AVI Contains

Which Codec to Put Inside the AVI

Frequently Asked Questions

Why does the AVI have no sound?

Because there is nothing to record. A still photograph carries no audio, so no audio stream is written rather than an empty one being padded in — which is also why no Audio Codec control appears for this conversion. This is entirely legitimate AVI: Microsoft's reference states directly that a simple variation of an AVI sequence uses video data and does not require an audio stream. Add music or narration afterwards in an editor if the clip needs it.

Why is the video only one frame per second?

Because a single photograph gives the encoder nothing to sample more often. The developed frame is looped and cut off after the duration you chose, so a five-second file is five identical frames. It costs almost nothing to encode and any editor will re-time it if a downstream tool insists on 24, 25 or 30 fps.

Which codec does the AVI use, and should I change it?

MPEG-4 Part 2 unless you change it — the ASP-family codec that AVI files have carried for two decades, and the safest default for anything that expects a traditional .avi. Change it when something specific asks you to: Xvid and DivX are alternative implementations of the same family, MJPEG stores each frame as a plain JPEG for easy decoding, and H.264 gives a much smaller file at the cost of being an unusual thing to find inside an AVI.

Why is my full-resolution Canon photo smaller in the video than I expected?

Two ceilings apply in sequence. The raw is first developed to a clean image at no more than 4096 pixels on its long edge so the encoder receives something it can handle, and then MPEG-4 and Xvid impose their own 2048-pixel limit on each axis, with the result rounded down to a multiple of four. A 40-megapixel frame therefore arrives in the AVI considerably reduced. Switch to H.264 if you want to keep more of it, or accept the reduction — a static frame at 2048 pixels is already far more than most AVI-era playback needs.

Do I lose the raw editing latitude by converting to AVI?

Yes, completely. A CR3 holds roughly 12 to 14 bits per channel of unprocessed sensor data behind the crx codec, which is exactly what lets you recover a blown highlight or re-judge white balance weeks later. Making a video frame means demosaicing that into ordinary 8-bit pixels and fixing the interpretation permanently. Develop the raw the way you want it first and keep the .cr3 as your master file.

Does this handle Canon's compressed C-RAW files too?

Yes. C-RAW is not a separate format — it is the lossy compression option inside the same .cr3 container, still using Canon's crx codec, and the file is read the same way either way. The difference between a lossless raw and a C-RAW capture lives in how much sensor detail was kept at the moment of the shot; once either is developed and encoded into a video frame, that distinction is no longer expressed in the output.

The photo has white bars around it. How do I stop that?

Those bars are padding, not a fault. When the frame you asked for is a different shape from the photograph, the image is centred at its correct proportions and the leftover area is filled with the Background Color rather than the picture being stretched or cropped. Pick a Fixed Resolution with the same orientation as your photo, or set the padding colour to white or a brand colour so it reads as intentional.

Is AVI the right target at all, or should I use something else?

Choose AVI only when something specifically expects it. Microsoft's AVI documentation now sits within DirectShow, which Microsoft itself flags as a legacy feature superseded by Media Foundation, and the container carries more per-frame overhead than modern alternatives. If you want a clip that plays on phones, browsers and editors without thought, CR3 to MP4 is the honest default. If what you actually wanted was a viewable picture rather than a video at all, CR3 to JPG is far smaller and opens anywhere, and an AVI you already have converts onward with AVI to MP4.