4-bit BMP — 16-Color Legacy Bitmap

Download a free 4-bit BMP (320×240, 16 colors). A legacy palette-based bitmap from the Windows 3.x era — test that your image processing pipeline correctly handles indexed-color BMP with color palettes.

BMP

sample-4bit.bmp

225 KB

320×240 · 4-bit

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Verified file details

Filename: sample-4bit.bmp
Exact size: 230,454 bytes
Displayed size: 225 KB
MIME type: image/bmp
Dimensions: 320 x 240 px
Bit depth: 4-bit
License: CC0 / Public Domain
Download URL: https://truefilesize.com/files/bmp/sample-4bit.bmp

Other BMP files

BMP

sample-100kb.bmp

109 KB

200×186 · 24-bit · RGB

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Verified file details

Filename: sample-100kb.bmp
Exact size: 111,654 bytes
Displayed size: 109 KB
MIME type: image/bmp
Dimensions: 200 x 186 px
Bit depth: 24-bit
Color space: RGB
License: CC0 / Public Domain
Download URL: https://truefilesize.com/files/bmp/sample-100kb.bmp

BMP

sample-1mb.bmp

900 KB

640×480 · 24-bit · RGB

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Verified file details

Filename: sample-1mb.bmp
Exact size: 921,654 bytes
Displayed size: 900 KB
MIME type: image/bmp
Dimensions: 640 x 480 px
Bit depth: 24-bit
Color space: RGB
License: CC0 / Public Domain
Download URL: https://truefilesize.com/files/bmp/sample-1mb.bmp

BMP

sample-24bit.bmp

900 KB

640×480 · 24-bit · RGB

Download

Verified file details

Filename: sample-24bit.bmp
Exact size: 921,654 bytes
Displayed size: 900 KB
MIME type: image/bmp
Dimensions: 640 x 480 px
Bit depth: 24-bit
Color space: RGB
License: CC0 / Public Domain
Download URL: https://truefilesize.com/files/bmp/sample-24bit.bmp

Frequently Asked Questions

What is a 4-bit image?

4 bits per pixel = 16 possible colors, selected from a palette stored in the file header. This was the standard for early Windows (3.x) graphics. Modern images use 24-bit (16.7 million colors).

Can modern tools open 4-bit BMP?

Yes. All image viewers and libraries handle 4-bit BMP correctly — it's part of the BMP spec. Test it to ensure your tool doesn't assume all BMPs are 24-bit.