Add your EXR file
Drop one or more .exr 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.
Converting a .exr image to .bmp re-encodes the pixels for a different balance of size, quality, and support. 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.Converting a .exr image to .bmp re-encodes the pixels for a different balance of size, quality, and support. An .exr file is an OpenEXR image: a high-dynamic-range raster format that stores scene-referred light values as floating-point numbers rather than display-ready 8-bit codes. It is the working image format of visual effects and animation, where a frame has to survive repeated relighting, grading, and compositing without the highlights and shadows being thrown away.
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 .exr, files are large, and the lossless codecs help far less than they do on 8-bit imagery. 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 | OpenEXR image (.exr) | 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 | pixels are 16-bit half float, 32-bit float, or 32-bit unsigned integer, one value per channel, with no fixed 0-1 ceiling | pixels are typically stored uncompressed; optional RLE encoding exists only for 4-bit and 8-bit palette images |
| Strongest at | rendered frames handed between a renderer, a compositor, and a grading suite | quick lossless dumps from code, since a writer takes minutes to implement |
| Weak spot | files are large, and the lossless codecs help far less than they do on 8-bit imagery | no effective compression, so files dwarf PNG equivalents of the same image |
Drop one or more .exr 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. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders.
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 exr 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 .exr file is processed inside your browser tab and never uploaded. Decoding and re-encoding happen on your device using the browser's native image pipeline and hand-tuned encoders. 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 .exr, metadata lives in typed header attributes: chromaticities, white luminance, capture date, owner, camera transform matrices and free-form strings. There is no EXIF or ID3 block, and this converter's raster outputs do not carry the header attributes across. 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.