Convert BMP to EXR

Convert BMP files to EXR locally, completely free and with maximum privacy.

Drag and drop your files here

or click to browse local files (large files supported, limited only by browser RAM)

Upload Files

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How to convert BMP to EXR

  1. Drop your .bmp files above, or click Upload Files. You can add many files at once.
  2. EXR is already selected as the output. Open the settings (gear icon) to fine-tune the result.
  3. Click Convert All. ImageMagick runs inside your browser through WebAssembly; nothing is uploaded.
  4. Download your .exr files as soon as each one finishes.

What to know about BMP to EXR conversion

  • EXR supports both lossy and lossless compression and typically produces smaller files than older formats at the same visual quality.
  • EXR is best for high-dynamic-range renders and VFX compositing, and opens in Blender, Nuke, After Effects and Photoshop.

BMP vs EXR

FeatureBMP (Bitmap Image File)EXR (OpenEXR)
Compressionuncompressedlossy or lossless
TransparencyNoYes
AnimationNoNo
Best forpixel-exact images for legacy Windows softwarehigh-dynamic-range renders and VFX compositing
Opens inWindows apps and most image editorsBlender, Nuke, After Effects and Photoshop

BMP (Bitmap Image File): A classic uncompressed raster graphics format developed by Microsoft, preserving pixel-perfect quality.

EXR (OpenEXR): A high-dynamic-range image format developed by Industrial Light & Magic for use in computer imaging and visual effects.

Conversion options

  • Resize by width, height or both (aspect ratio is preserved)
  • Filters: grayscale, sepia, blur and sharpen
  • Custom output file name

Frequently asked questions

Is it safe to convert BMP to EXR here?

Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.

Is there a file size limit?

There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.

Can I convert several BMP files at once?

Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.

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