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Supports: GIF
This tool unpacks a GIF into an uncompressed BMP (Windows Bitmap) — the raw, palette-faithful raster that old Windows software, embedded displays, and imaging pipelines expect. Be clear-eyed about what it does and doesn't do: a GIF is already capped at 256 colors, so writing it to BMP stores those exact same pixels with no compression and no quality gain — just a much larger file. It's the right move only when something downstream specifically requires a .bmp; for everything else, PNG gives you the identical pixels at a fraction of the size.
.gif onto the page or click "+ Add Files". You can queue several GIFs and convert them with the same settings in one batch..bmp. No sign-up, no watermark.| Property | GIF | BMP (Windows Bitmap) |
|---|---|---|
| Compression | Lossless LZW | Usually none (raw raster) |
| Colors | Up to 256 (8-bit indexed palette) | 1, 4, 8, 16, 24, or 32-bit per pixel |
| Animation | Yes (multi-frame) | No — single still image only |
| Transparency | 1-bit binary (one color keyed out) | None in common use; flattened to a solid color |
| Typical file size | Small | Large (no compression) |
| Best for | Web, simple animation, sharing | Legacy Windows apps, embedded systems, raw-bitmap pipelines |
For general use, neither is ideal — PNG is lossless like BMP but compressed, and supports full transparency. Reach for BMP only when a specific program demands it.
No. A GIF already stores at most 256 colors, and writing those pixels into a BMP doesn't add color, sharpness, or detail — it just stores the same palette-limited image without compression. The only thing that changes is the file size, which gets substantially larger. If you want better quality you need a higher-color source; the format conversion alone can't create detail that isn't there.
Because BMP normally stores raw, uncompressed pixels while GIF uses lossless LZW compression. As plain arithmetic, a 24-bit BMP holds 3 bytes per pixel, so a 500×500 image is about 750 KB before the header — even though the same picture as a GIF might be a fraction of that. Stepping up the bit depth or resolution multiplies the size further. If size matters and you don't specifically need a bitmap, convert to PNG for the same pixels at far smaller size.
BMP holds a single image, so an animated GIF can't stay animated — the output is one still frame (the first frame), not the moving sequence. If you need to keep the motion, convert to a video format instead with GIF to MP4, which preserves every frame and plays back as a clip.
GIF supports 1-bit transparency (one palette index is keyed out), but BMP as written by common tools has no usable alpha channel, so any transparent pixels are flattened onto a solid background. That background is White by default; you can change it under Image Transparency → Color. If you actually need to keep transparency, target PNG instead of BMP.
In our testing, BMP only makes sense when something downstream specifically requires a raw bitmap — older Windows software, certain embedded or industrial displays, and imaging or document-capture pipelines that ingest .bmp directly. For every other purpose PNG wins: it's also lossless, keeps transparency, and produces a far smaller file for the identical pixels. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, never shared or made public.