How is it possible without a RAW developer?

Canon CR2/CR3 files embed a full-resolution JPEG preview alongside the raw sensor data. This tool finds and extracts that preview — no de-mosaic step is needed.

Will it work for NEF, ARW, RAF, DNG?

Often yes — most modern RAW formats embed a JPEG preview. The extractor scans the file for the largest embedded JPEG so it works on many RAW formats even though it is tuned for CR2/CR3.

Are my photos uploaded?

No. Bytes are scanned in the browser via the File API. Nothing leaves your device.

Is this the same quality as a developed RAW?

No — the embedded preview is what the camera produced at capture time. It's good enough to publish, but it doesn't reflect any edits you'd make in a RAW developer.

Why is the result smaller than the sensor resolution?

Some Canon bodies embed a slightly downsized preview to save space. Most recent bodies (5D Mk IV, R-series) embed a full-resolution JPEG.

It says "no JPEG found"?

Either the body wrote a non-standard preview or the file was renamed but is not actually a CR2/CR3. Confirm with the EXIF Viewer.

CR2 轉 JPG 轉換器

從 Canon CR2/CR3 原始檔中擷取全解析度 JPEG 預覽,直接在瀏覽器執行。

100% in your browser. Your file never leaves your device.

Canon RAW file (.cr2, .cr3, .crw)

Drop a Canon RAW file to begin.

How CR2 to JPG works

Pick one or more .cr2 or .cr3 files.
The browser scans each file for the largest embedded JPEG (the full-resolution preview).
Press Extract JPG preview and download the resulting JPEG.

Common use cases

Quick photo sharing: get a usable JPEG straight from a RAW shoot without booting Lightroom.
Triaging RAWs: generate previews you can scroll through on a phone or tablet.
Recovering lost JPEGs: when the dual-format setting failed, the in-RAW preview is still there.

常見問題

How is it possible without a RAW developer?: Canon CR2/CR3 files embed a full-resolution JPEG preview alongside the raw sensor data. This tool finds and extracts that preview — no de-mosaic step is needed.
Will it work for NEF, ARW, RAF, DNG?: Often yes — most modern RAW formats embed a JPEG preview. The extractor scans the file for the largest embedded JPEG so it works on many RAW formats even though it is tuned for CR2/CR3.
Are my photos uploaded?: No. Bytes are scanned in the browser via the File API. Nothing leaves your device.
Is this the same quality as a developed RAW?: No — the embedded preview is what the camera produced at capture time. It's good enough to publish, but it doesn't reflect any edits you'd make in a RAW developer.
Why is the result smaller than the sensor resolution?: Some Canon bodies embed a slightly downsized preview to save space. Most recent bodies (5D Mk IV, R-series) embed a full-resolution JPEG.
It says "no JPEG found"?: Either the body wrote a non-standard preview or the file was renamed but is not actually a CR2/CR3. Confirm with the EXIF Viewer.

Last updated: 2026-05-20 By jarvisbox