What happens when you convert RW2 to JPG
- The RW2 is developed by LibRaw, the open-source camera RAW decoder, on our conversion server: the sensor data is turned into a full-colour picture with the white balance the camera recorded, AHD demosaicing and standard sRGB colour.
- ImageMagick then saves it as a JPG at 92 percent quality, at the camera's full resolution, 8 bits per channel. The photo is turned the way the camera was held.
- This is a neutral, straight development, much like the camera's own JPG settings switched off: no lens corrections, noise reduction or creative styles are applied, so it can look flatter than an edited version.
- This conversion runs on our server: the file is uploaded, converted, and deleted together with the result as soon as the result has been sent back to you. Nothing is kept. Files up to 25 MB are accepted.
How to convert RW2 to JPG online
- Press "Choose RW2 files" and select one or more files, or drag them onto the box. Files up to 25 MB each can be converted.
- There are no settings to choose: the converter keeps everything the target format can hold.
- Press "Convert to JPG". The file is uploaded to our conversion server, converted in a few seconds, and deleted together with the result as soon as the result is sent back.
- Save each JPG with its download button. Our server has already deleted both your RW2 and the JPG by then.
Why convert RW2 to JPG?
RW2 files usually come from Panasonic Lumix cameras since the G1. People convert them to JPG because JPG opens everywhere and keeps photos small, which is why upload forms and email favour it.
In short, RW2 is good at what it was made for, and JPG is the more practical choice when the file has to open, upload or print somewhere else. RW2 does not open in browsers; macOS Photos and Preview, Lightroom and SILKYPIX open it, while JPG opens in every browser and image viewer.
How to convert RW2 to JPG on Windows, Mac, iPhone and Android
On Windows
Open this page in Chrome, Edge or Firefox, drag your RW2 files in from File Explorer, and press Convert. Each JPG is saved to your Downloads folder.
On a Mac
Safari, Chrome and Firefox all work. Drag the RW2 files from Finder onto the drop zone and the JPG files land in Downloads. Preview can do single images too: open the file, choose File, then Export, and pick JPEG.
On iPhone and iPad
Open the page in Safari and tap Choose RW2 files. You can pick from Photos or from the Files app. The converted JPG appears in Files, in the Downloads folder; to put it in your photo library, open it there, tap Share and choose Save Image.
On Android
Open the page in Chrome, tap Choose RW2 files and pick them from Files or your gallery. The JPG is saved to the Download folder, where any file manager can find it.
Best settings for RW2 to JPG
There are no settings: camera white balance, sRGB colour and the full sensor resolution, up to 16,384 pixels a side.
For exposure, colour and lens corrections, develop the RW2 in Lightroom, darktable or RawTherapee instead; this converter gives a quick, faithful result without edits.
RW2 vs JPG: the differences
| RW2 | JPG | |
|---|---|---|
| Full name | Panasonic raw image | Joint Photographic Experts Group image |
| Type | image | image |
| Created by | Panasonic | the Joint Photographic Experts Group |
| First released | 2008 | 1992 |
| Compression | Lossy or lossless | Lossy |
| Transparency | No | No |
| Animation | No | No |
| Vector or raster | Raster | Raster |
| Colour | raw sensor data, usually 12 or 14 bits per pixel | 24-bit colour, 16.7 million colours |
| In a browser | does not open in browsers; macOS Photos and Preview, Lightroom and SILKYPIX open it | opens in every browser and image viewer |
| Common uses | Panasonic Lumix cameras since the G1 | camera photos, web images and email attachments |
| MIME type | image/x-panasonic-rw2 | image/jpeg |
About RW2 and JPG files
What is a RW2 file?
RW2 is the raw format of Panasonic Lumix cameras since the G1 in 2008; earlier Lumix models wrote .RAW files. Leica compacts made with Panasonic write the same format under the .RWL extension.
What is a JPG file?
JPG discards fine detail the eye is least sensitive to, which is why a photo shrinks to a tenth of its raw size but text and sharp edges pick up blocky artefacts. Every re-save at a lossy setting throws away a little more.
RW2 to JPG not working? Common problems
- "Files up to 25 MB can be converted." Server conversions have a size limit, and raw files from high-resolution cameras can pass it. Switch the camera to its compressed raw setting, or develop very large files in a desktop raw editor.
- "This file is not really in RW2 format." The converter checks every file before it runs anything, so a file of another format renamed to .rw2 is refused. Choose the page for its real format.
- "The photo could not be read." The decoder on our server, LibRaw 0.20, knows cameras released up to about 2020. Raw files from newer models, and Canon CR3 and Sigma X3F files, may not open.
- The colours look flat. The photo is developed neutrally, without the contrast and styles a camera adds to its own JPGs. Adjust it in a photo editor.
Convert RW2 to JPG from the command line
LibRaw and ImageMagick do the same on your own computer:
dcraw_emu -w -o 1 -q 3 -T input.rw2
magick input.rw2.tiff -quality 92 output.jpgConverting on your own computer keeps the file entirely local, which is worth it for very large or very sensitive documents. For everything else, the converter on this page does it without installing anything.
RW2 to JPG converter FAQ
Will I lose quality converting RW2 to JPG?
The JPG is 8 bits per channel, while the RW2 held 12 or 14 bits of sensor data, so the extra room for adjusting exposure and colour is gone. Keep the RW2 for editing.
Why is the JPG a different size from the RW2?
Usually smaller than the RW2, because JPEG compression is much more compact than raw sensor data.
Are my RW2 files uploaded?
Yes, for this conversion. A faithful RW2 to JPG conversion needs LibRaw and ImageMagick, two open-source tools, which cannot run in a browser. The file travels over an encrypted connection, is converted in a private temporary folder, and is deleted together with the JPG as soon as the result has been sent back to you. We do not keep, read or share it.
Can I convert several RW2 files to JPG at once?
Yes. Select or drop as many files as you like; they are converted one after another and each gets its own download button.
How do I open a JPG file?
JPG opens in every browser and image viewer. JPG is common for camera photos, web images and email attachments.
Is this RW2 to JPG converter free?
Yes. There is no sign-up and no watermark. Because this conversion uses our server, there is a fair-use limit of 25 MB per file and a number of files per hour, which stops the service being overloaded.
Can I convert RW2 to JPG on my phone?
Yes. It works in Safari on iPhone and iPad and in Chrome on Android. The conversion happens on our server, so it is as fast on a phone as on a computer; the JPG is saved to your Downloads folder.