View LBM files in your browser
The Amiga's picture format, painted in Deluxe Paint and kept by DOS games. Open an LBM or IFF right here in its own colors. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your file opens at actual size, or shrunk to fit your screen.
- Actual size, or shrunk to fit
- Drag to pan • Pinch or scroll to zoom
- Fullscreen
- Export • Save as PNG or JPEG
About LBM
Electronic Arts set out IFF in 1985 as a way for Amiga apps to share files, and its ILBM pictures, painted in Deluxe Paint, became the Amiga's own. Deluxe Paint for DOS saved them too, as .lbm, and many DOS games kept their art in them.
An ILBM is a run of chunks: BMHD with the size and depth, CMAP with the palette, CAMG with the Amiga's screen mode and BODY with the pixels, a row of each bitplane in turn, mostly packed with ByteRun1. Deluxe Paint for DOS also wrote PBM, a byte a pixel.
Filepeek reads it in your browser in its own palette, works out HAM6 and HAM8, which change one channel of the pixel before, and Extra Half-Brite's darker colors, and Export saves it as PNG or JPEG.
IFF Interleaved Bitmap
.lbm • .ilbm
Format
- MIME type
- image/x-ilbm
- Made by
- Electronic Arts, for Deluxe Paint
- Released
- 1985
Inside the file
- Chunks
- BMHD, CMAP, CAMG and BODY
- Pixels
- 1 to 8 bitplanes, or a byte each
- Modes
- HAM6, HAM8 and Extra Half-Brite
- Packing
- ByteRun1, or none
Opens in every browser
Filepeek decodes ILBM and PBM in Chrome, Edge, Firefox and Safari. No browser shows them by itself.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open LBM
- WindowsXnView, IrfanView and GIMP
- MacGIMP and GraphicConverter
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open an IFF or LBM file?
Drop it on this page or choose Peek an LBM. Amiga pictures named .iff, or with no extension as Amiga disks kept them, open too, by their ILBM mark.
Why do HAM pictures look wrong in some apps?
HAM, the Amiga's Hold And Modify mode, gives most pixels only one channel of their own and takes the other two from the pixel before, and an app that reads them as palette colors shows noise. Filepeek works HAM6 and HAM8 out as the Amiga's screen did.
How do I convert LBM to PNG?
Open it, then choose Export and Save as PNG, which keeps every color.
Can it play Deluxe Paint animations?
It shows the first picture of an ANIM file, and the frames after it aren't played.