raster format

What is a .DIB file?

DIB (Device Independent Bitmap) is the raw bitmap data inside a Windows BMP, sometimes saved standalone — uncompressed pixels with no device-specific palette.

Full name
Device Independent Bitmap
Developed by
Microsoft
Released
1990
Extension
.dib
MIME type
image/dib
Transparency
Varies

How to open a DIB file

DIB opens in Windows image tools and IrfanView; convert to PNG/JPG for everyday use.

What DIB files are used for

Photos & web images

Share, post and embed pictures across sites and apps.

Editing & design

Work with the format in editors like Photoshop and GIMP.

Storage & archiving

Keep memories and assets in a widely-readable form.

Strengths & limitations

✔ Strengths✖ Limitations
Excellent compatibilityNo transparency support
Limited support — may need converting
Large file sizes

Need more than a conversion?

Remove the background from DIB images, upscale to 4K, or generate new visuals with SharkFoto AI.

Frequently asked questions

DIB (Device Independent Bitmap) is the raw bitmap data inside a Windows BMP, sometimes saved standalone — uncompressed pixels with no device-specific palette.

DIB opens in Windows image tools and IrfanView; convert to PNG/JPG for everyday use.

DIB is optimised for its specific use rather than strictly lossless storage.

Use SharkFoto's free tools — upload your DIB file and convert it to a more convenient format in seconds. It's free, processed securely and never stored.

No — DIB doesn't store transparency; convert to PNG or WEBP if you need it.