Convert to GIF · Free · No upload

Convert BMP to GIF

BMP to GIF converts Windows bitmap (.bmp) images into GIF — typically shrinking them dramatically, because BMP usually stores pixels uncompressed while GIF uses lossless LZW compression. Convert one bitmap to a static GIF, or add several to build an animated GIF with your own frame timing.

  • Runs in your browser
  • No sign-up
  • No watermark
  • Works on mobile
Loading tool…

How to use BMP to GIF

  1. 01

    Add bitmaps

    Drop one or more .bmp files.

  2. 02

    Arrange

    For an animation, order the frames and set the delay.

  3. 03

    Convert

    Click Create GIF and download.

Why BMP files are so large

BMP is Windows’ native bitmap format. Most BMPs store every pixel’s colour directly with no compression, so a 1920×1080 24-bit image takes about 6 MB regardless of what it shows. GIF compresses pixel runs with LZW, so screenshots, diagrams and line art often end up a small fraction of the original.

For images with 256 colours or fewer — old game sprites, icons, UI captures and charts — the conversion is completely lossless. Full-colour photos are reduced to 256 colours per frame; for those, PNG or JPG are usually better still-image targets, and GIF makes the most sense when you want animation.

From bitmap frames to animation

Many older tools and games export animations as numbered BMP frames. Add them all at once — they’re sorted in the order you select them, and you can reorder with the arrow buttons. If your frames are already packed into one image grid, use Sprite Sheet to GIF instead. For other formats, see JPG to GIF and TIFF to GIF, or mix anything in Images to GIF.

Features

  • Big size savings

    Uncompressed bitmaps often shrink by 70–95%.

  • Lossless for simple art

    Icons, diagrams and pixel art with ≤256 colours convert without any loss.

  • Animated sequences

    Turn numbered bitmap frames into an animation.

  • Local processing

    Files never leave your computer.

BMP to GIF FAQ

How do I convert BMP to GIF?

Drop your BMP file into this tool, choose the output width and click Create GIF. Add several BMPs to make an animated GIF.

Is BMP to GIF conversion lossless?

It is lossless when the bitmap uses 256 colours or fewer. Full-colour bitmaps are reduced to the best 256 colours for each frame.

Why is my GIF so much smaller than the BMP?

BMP files are usually uncompressed, while GIF uses LZW compression. Images with flat colours, like screenshots and diagrams, compress especially well.

Are my files uploaded to a server?

No. GifRush processes everything locally in your browser using JavaScript, Canvas, Web Workers and WebCodecs. Your files never leave your device, and closing the tab discards them.

Images to GIF

Combine PNG, JPG, WebP or HEIC images into an animated GIF slideshow with custom timing.

PNGJPGWebP

JPG to GIF

Convert JPG photos to GIF — a single image to a still GIF, or several into an animation.

JPGJPEGSlideshow

TIFF to GIF

Convert single or multi-page TIFF files to GIF — each page becomes a frame.

TIFFMulti-pageScans

Sprite Sheet to GIF

Animate a sprite sheet: slice a grid of frames into a looping GIF with your chosen frame rate.

Grid slicingPixel artGame dev

GIF to PNG

Convert a GIF to PNG — pick any frame for a lossless still, or export every frame.

LosslessAny frameTransparency

Last updated