CRW to JPEG Converter
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Need help?CRW to JPEG Converter
CRW is Canon's first-generation RAW format — the unprocessed sensor data written by EOS DSLRs up to the 10D and by early PowerShot cameras. Because it predates the modern CR2/CR3 standard, many photo viewers and phones can no longer open it, so converting an old CRW to JPEG renders the RAW into a standard 8-bit image that opens anywhere. This page explains both formats and walks through the conversion.
What is the CRW Format?
A CRW file holds the raw, demosaiced-on-render sensor readout from a Canon camera — not a finished picture. It is stored in the Camera Image File Format (CIFF), a container Canon published in 1997 that organizes data in a hierarchical directory structure (data-before-directories, relative offsets) distinct from the TIFF layout its successors use. Rendering a CRW applies white balance, demosaicing, and tone curve to turn that sensor data into viewable pixels — and that is exactly what this converter does on the server before encoding to JPEG.
| Property | Value |
|---|---|
| Standard | Camera Image File Format (CIFF), proprietary Canon |
| Released | CIFF spec 1997; CRW used ~1998–2004 |
| Payload | Unprocessed Canon RAW sensor data (typically 12-bit) |
| Container | CIFF (hierarchical, not TIFF-based) |
| Cameras | EOS D30, D60, 10D, 300D/Digital Rebel; PowerShot G1–G6, S30–S70, Pro1 |
| Native OS/browser support | None — no browser or default phone gallery renders CRW |
| Best for | Archival access to early-2000s Canon RAW originals |
| Superseded by | CR2 (TIFF-based, 2004), then CR3 (QuickTime-based, 2018) |
What is the JPEG Format?
JPEG (identical to JPG — same format, two spellings) is the universal lossy photo format. It applies discrete cosine transform compression to 8-bit-per-channel color, carries Exif metadata, and is decoded natively by every browser, operating system, and phone gallery. Converting CRW to JPEG trades the RAW's editing latitude for a small, portable file that needs no special software.
| Property | Value |
|---|---|
| Standard | ISO/IEC 10918 (JPEG); JFIF/Exif interchange |
| Released | JPEG standard 1992 |
| Compression | Lossy (DCT); 8-bit per channel |
| Container | JFIF / Exif |
| Native OS/browser support | Universal — every browser and OS |
| Best for | Sharing, printing, web, and long-term portability |
| Trade-off vs RAW | Loses the 12-bit headroom and re-edit latitude of the original CRW |
How to Convert CRW to JPEG
- Upload Your CRW File: Drag and drop or click "+ Add Files" to load one or more CRW files. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion.
- Set the Quality Preset: Under Advanced Options, choose a Quality Preset (defaults to Very High) to balance image fidelity against file size, or switch to a specific file size target if you need the output under a set limit.
- Adjust Resolution (Optional): Use Resolution Percentage or a Preset Resolution to downscale, or set an exact Width or Height (aspect ratio is kept). Leave it on Keep Original to match the camera's native pixel dimensions.
- Convert and Download: Pick the File Extension (JPEG or JPG — same format) and click "Convert." No sign-up, no watermark.
Frequently Asked Questions
Will converting CRW to JPEG lose image quality?
The JPEG you get is excellent for viewing, printing, and sharing, but it is a one-way render. The RAW holds roughly 12-bit-per-channel sensor data with wide latitude to recover highlights, shadows, and white balance; JPEG bakes those decisions in at 8 bits and adds lossy compression. Keep the original CRW if you ever want to re-edit; use the JPEG for everything else.
Why won't my CRW file open on my computer or phone?
CRW predates Canon's current RAW formats and the CIFF container it uses was never widely adopted, so modern phone galleries, web browsers, and many default photo apps simply don't decode it. Converting to JPEG produces a file that every device opens without extra software.
How is CRW different from CR2 and CR3?
CRW is the original CIFF-based format from Canon's early DSLRs and PowerShots (up to around the EOS 10D). Canon replaced it with CR2 in 2004, switching to a TIFF-based container, and then CR3 in 2018, which is QuickTime/ISO-BMFF-based. If your files are newer, use the CR2 to JPG converter instead — CRW specifically means the older generation.
Which Canon cameras produced CRW files?
CRW came from Canon's DSLRs up to the EOS 10D (including the D30, D60, and 300D/Digital Rebel) and from PowerShot models such as the G1–G6, S30–S70, and Pro1. If your camera is from roughly 1998–2004, its RAW files are likely CRW.
Does the JPEG keep the date and camera metadata from the CRW?
In our testing, the shooting date, camera model, and core Exif tags embedded in the CRW carry through to the JPEG's Exif block, so the photo still sorts correctly by capture date. Some Canon-proprietary maker-note fields that have no JPEG equivalent are not preserved.
Should I convert CRW to JPEG or to TIFF?
Choose JPEG for small, shareable, universally-readable files. Choose CRW to TIFF when you want a lossless 16-bit-capable render for archiving or further editing, since TIFF avoids the generation loss JPEG introduces. JPEG is the right pick for almost everyone who just needs to view or share the photo.