Convert to BMP online

Free online converter for converting files to BMP.

Drag and drop images,
videos or any files

Drag files here. Maximum size — 5 GB

How to convert files to BMP?

1
Upload your file
Click the 'Choose File' button or drag and drop your file into the upload area. Supported formats include PNG, JPG, WEBP and more.
2
Select the output format
Make sure BMP is selected as the conversion format. Adjust additional settings if needed.
3
Start the conversion process
Click the 'Convert' button and wait a few seconds. All conversions are performed on our servers.
4
Download the result
Once the process is complete, click the 'Download' button and save the file in BMP format.

.BMP

BMP
Microsoft Windows bitmap image
Data typeImage
MIME typeimage/bmp
DeveloperMicrosoft
Primary use casesRaw/uncompressed image exchange, screenshots, simple graphics workflows, legacy Windows compatibility

What is the BMP file format?

BMP is a classic Windows bitmap image format that usually stores pixels uncompressed, resulting in large files but simple, fast decoding.

BMP file characteristics

Data typeImage
MIME typeimage/bmp
CompressionUsually none; optional lossless RLE compression; optional bitfield masks
Color depth1–32 bits per pixel (common: 24-bit RGB, 32-bit BGRA); palette-based modes for ≤8 bpp
Color spaceRGB (commonly sRGB)
Transparency supportYes
Animation supportNo
MetadataBMP/DIB headers; optional masks and (in newer variants) embedded color profile; limited standardized metadata compared to JPEG
Standard / SpecificationIANA image/bmp registration; RFC 7903; Microsoft [MS-WMF] / Bitmap Storage documentation
Typical file sizeOften large: ~ (width × height × bytes_per_pixel) + headers (plus row padding). Example: 1920×1080 at 24-bit ≈ 6.2 MB.
Year introduced1987

Advantages

The BMP file format offers several advantages that make it suitable for common use cases.

  • Simple structure and wide tooling support;
  • Fast to decode/encode (especially uncompressed);
  • Lossless storage (no generation loss);
  • Useful for raw pixel interchange and debugging.

Limitations

The BMP file format has certain limitations that may affect its use in specific scenarios.

  • Not optimized for photos or web performance;
  • Some BMP compression/variant features are uncommon and may not be supported everywhere;
  • Usually stored uncompressed, so storage and transfer costs are higher.

Compatibility

BMP images are widely supported and can be viewed on most devices and platforms.

  • Supported platforms: Windows, macOS, Linux, Android, iOS
  • Supported devices: Computers, smartphones, scanners, printers
  • Browser support: Yes
  • Mobile support: Yes
  • Backward compatibility: Yes

Security considerations

As a basic image type, BMP does not provide executable content; however malformed files can trigger decoder bugs. BMP may encapsulate JPEG/PNG payloads in some cases, so related parsing risks can apply.

License

Published specification referenced by Microsoft documentation; media type registered in RFC 7903

BMP (Windows Bitmap / DIB) is a raster image format used on Windows and historically OS/2. A BMP file stores headers plus a pixel array, optionally a color table for indexed images, and may use no compression or simple lossless RLE compression. The official media type is image/bmp; the format is widely supported but is generally avoided on the web because uncompressed BMP files are large.