Add your RW2 file
Drop one or more .rw2 files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Developing a .rw2 camera file into .bmp turns unprocessed sensor data into a finished image any app can open. Free, private, and validated — the file never leaves your browser.
Batch files can each use a different output. Nothing uploads for local conversions.
Working inputs include camera RAW, browser-local audio/video, PDF, CBZ/CBR comics, office documents, ebooks, markup, 3D models, structured text, images, and archives.Developing a .rw2 camera file into .bmp turns unprocessed sensor data into a finished image any app can open. An .rw2 file is a Panasonic Lumix RAW photograph, storing sensor data along with the lens-correction parameters that Micro Four Thirds imaging depends on. A distinctive trait of .rw2 is that its embedded distortion-correction metadata is essentially mandatory: raw converters must apply it to render geometrically correct images from many Lumix lenses.
A .bmp file is the Windows bitmap format: raw pixel rows written to disk with a small header and, in the common case, no compression at all. Its brute simplicity makes .bmp trivial to read and write from any programming language, which is why it persists in tooling, embedded systems, and quick debugging dumps. For this route the practical draw is dead-simple structure with no decoding step at all and exactly lossless — what you write is what you read — balanced against no effective compression, so files dwarf PNG equivalents of the same image, which is worth knowing before you commit a large batch.
The practical trigger for this conversion is usually a mismatch: with .rw2, renderers that ignore the correction metadata produce visibly distorted output from certain lenses. Switching to .bmp buys you dead-simple structure with no decoding step at all, which is why it is the better fit for quick lossless dumps from code, since a writer takes minutes to implement. Because the conversion runs locally, trying it costs nothing but a few seconds of compute on your own machine.
| Aspect | Panasonic RAW (.rw2) | Bitmap image (.bmp) |
|---|---|---|
| Format type | Lossless — every pixel or sample is preserved exactly | Lossless — every pixel or sample is preserved exactly |
| How it stores data | tIFF-based container with Panasonic-specific tag numbering and the raw mosaic at 12 or 14 bits | pixels are typically stored uncompressed; optional RLE encoding exists only for 4-bit and 8-bit palette images |
| Strongest at | raw workflows for Lumix GH-series video-hybrid and S-series full-frame cameras | quick lossless dumps from code, since a writer takes minutes to implement |
| Weak spot | renderers that ignore the correction metadata produce visibly distorted output from certain lenses | no effective compression, so files dwarf PNG equivalents of the same image |
Drop one or more .rw2 files onto the converter above, or browse for them. They load into browser memory only — nothing is uploaded, so there is no size-based pricing and no server queue.
Select .bmp in the output menu next to each file. The menu only offers targets this engine can genuinely produce, so if BMP is selectable, the route is real and validated.
Press Convert. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export.
Each result is signature-checked before the download unlocks, so a failed encode can never masquerade as a valid BMP file. Outputs keep the original filename with the .bmp extension.
Since rw2 is lossless-oriented and bmp is lossless-oriented, the conversion preserves the source content exactly as stored; no additional compression pass is applied beyond what .bmp itself requires.
Yes — the .rw2 file is processed inside your browser tab and never uploaded. A LibRaw WebAssembly decoder demosaics the sensor data in your browser and renders a developed image ready for export. Close the tab and the file is gone from memory.
Windows treats BMP as a native citizen, and macOS, Linux, and all major browsers open it without complaint. The format's problem is never support but waste: emailing or hosting uncompressed bitmaps burns bandwidth for zero benefit, so converting to PNG is almost always an upgrade.
It depends on the content: pixels are typically stored uncompressed; optional RLE encoding exists only for 4-bit and 8-bit palette images. Convert one representative file first and compare before batch-processing a large set.
In .rw2, eXIF plus Panasonic MakerNotes carry shooting parameters and the crucial lens-correction tables; XMP is sidecar-based in most editing workflows. Re-encoding through the browser pipeline does not carry embedded metadata into the output, which doubles as a privacy scrub — check the exported file if you specifically need tags preserved.