RW2 to ICO Converter

RW2 to ICO Converter

RW2 is the raw photo format written by Panasonic Lumix cameras — full-resolution, high-bit-depth sensor data straight off the chip. ICO is the Windows icon container, where each image is at most 256×256 pixels. This converter renders the raw photo and downscales it into an icon you can use as a Windows application icon or a website favicon. It is a deliberate one-way trip: a multi-megapixel raw becomes a tiny, standard-color-depth icon.

RW2 Format at a Glance

ICO Format at a Glance

How to Convert RW2 to ICO

1. Upload Your RW2 File: Drag and drop your .rw2 photo onto the page or click "+ Add Files." You can queue several raws to icon-ify in one batch.
2. Set the Image Resolution: Open the resolution dropdown and pick an icon size — 256P for a full favicon, or 32P / 16P for small toolbar and tab icons. Sizes above 256 are hidden because ICO caps each image at 256×256.
3. Adjust Bit Depth or Color Reduction: Leave 8-bit for a standard icon, or apply color reduction if you want a smaller palette. Raw 12–14-bit latitude is baked down to 8-bit either way.
4. Convert and Download: Click "Convert" and save your .ico. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. No sign-up, no watermark.

Frequently Asked Questions

Will I lose quality converting RW2 to ICO?

Yes, and by design. An RW2 holds many megapixels of 12–14-bit sensor data; an ICO image is capped at 256×256 and stored at standard 8-bit depth. The raw's wide exposure latitude is baked into a fixed rendering and the resolution is shrunk dramatically. That is fine for an icon, but it is not a way to archive a photo. To keep a normal viewable picture, convert to RW2 to JPG or RW2 to PNG instead.

What icon size should I choose for a favicon?

For a website favicon, 256×256 (the 256P preset) is the safe upper bound — browsers and Windows downscale it to the size they need. If you only want classic small icons, 32×32 and 16×16 are the traditional taskbar and browser-tab sizes. Because ICO is a multi-resolution container, a 256-pixel icon already scales down cleanly for most uses.

Why does my RW2 look different after rendering?

A raw file is mosaiced Bayer data, not a finished picture. It has to be demosaiced and rendered — white balance, gamma, and tone curve applied — before it can be displayed. Our pipeline applies a neutral default rendering, so the result can look flatter or differently white-balanced than the in-camera JPEG preview your Lumix showed you. That preview was Panasonic's own processing baked into the camera.

Does the ICO keep transparency from the photo?

A standard rendered RW2 is fully opaque, so there is no transparency to carry over. ICO itself does support a 32-bit mode with an 8-bit alpha channel, but a photo has no alpha to preserve. If you need a transparent icon, mask the image first in an editor, export a PNG with alpha, then convert that.

Can I convert several RW2 files to ICO at once?

Yes. Add multiple .rw2 files and they are processed with the same resolution and bit-depth settings, then returned as individual .ico files. This is handy when you are generating a set of app icons from a batch of shots.

Is the original RW2 raw data still usable elsewhere?

The conversion does not touch your source file — only a copy is uploaded and processed, and the upload is deleted automatically after a few hours. Your original RW2 keeps its full 12–14-bit latitude for editing in Lightroom, Capture One, RawTherapee, or darktable. The ICO is a derived output, not a replacement for the raw.

Is there a file size limit for RW2 uploads?

The practical constraint is upload size and time, not your computer — RW2 files are large, so a slow connection is usually the bottleneck, not the conversion itself. The page accepts standard Lumix raws; very large multi-file batches simply take longer to upload over the encrypted connection before processing begins.