Convert uncompressed BMP files to lightweight GIF. No installation needed, works on any device. Free, private, and unlimited.

BMP (Bitmap) is an uncompressed raster format — every pixel is stored individually, making files extremely large. A 3000×2000 pixel BMP image weighs around 18 MB. GIF uses lossless LZW compression and limits the palette to 256 colors, drastically reducing file size for simple graphics.
GIF supports binary transparency (a pixel is either fully transparent or fully opaque — no semi-transparency) and is compatible with every browser, email client, and social media platform. It's the ideal format for icons, diagrams, logos, and graphics with limited color palettes.
GIF's 256-color limit means photos with smooth gradients may show visible banding. For photographs, consider converting to JPG or WebP instead. GIF works best for graphics with flat, solid color areas.
This converter processes files locally in your browser — nothing is sent to any server. No registration, no limits, no watermarks.
Businesses, developers, and creators worldwide rely on image format compatibility. Whether you are preparing product images for Amazon, eBay, Etsy, Shopify, optimizing graphics for WordPress, Wix, Squarespace, or converting photos for government portals worldwide, having the right format matters.
While GIF is not the most efficient format for static images, it remains essential for simple animations, memes, and graphics with limited color palettes. The 256-color limit makes GIF less suitable for photographs but ideal for icons, logos, and animated content shared on social media and messaging platforms.
For email marketing campaigns and social media, GIF offers maximum compatibility across all platforms. Whether you are a freelancer, small business owner, or enterprise user, this converter handles your image conversion needs reliably and securely.
| Feature | BMP | GIF |
|---|---|---|
| Lossy compression | ||
| Lossless compression | ||
| Transparency (alpha channel) | ||
| Animation support | ||
| Web browser support | All browsers | All browsers |
| Color depth | 1/4/8/24/32-bit | 8-bit (256) |
| Compact file size | ||
| Metadata (EXIF) |
Savings depend on the source file type and its original compression. Below are example results:
Camera photo
12 MB → 890 KB
Product image
5 MB → 320 KB
Screenshot / banner
3.5 MB → 180 KB
Actual savings may vary depending on image content and quality settings. The converter shows the exact size before and after conversion for each file.
Core Web Vitals is a set of performance metrics Google uses when evaluating websites. One of them - LCP (Largest Contentful Paint) - measures the time it takes for the largest visible element to appear on screen. On many pages, that element is an image.
Converting BMP images to GIF reduces graphic file sizes, which directly shortens resource download time and improves the LCP score. Smaller files mean faster page loading - especially important on mobile devices with slower connections. Additional techniques like loading="lazy" and fetchpriority="high" speed up rendering.
Tools like PageSpeed Insights and Lighthouse identify specific files worth optimizing.

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