Free Online BMP Converter
Convert BMP bitmap files to JPG, PNG, WebP, PDF and more. Free, fast, and secure.
Max file size 10MB. Sign up for more.
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Checking files and selected output formats.
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How to Convert BMP Files Online — Free & Instant
Convert uncompressed BMP bitmaps to modern, compressed formats to dramatically reduce file size.
Drag and drop BMP files from Windows applications, legacy software exports, or old archives. BMP files are uncompressed and often very large, making conversion essential for sharing or web use.
Select JPG to shrink file size by 90% or more for photos, PNG for lossless compression that still reduces BMP size significantly, or WebP for the best web performance. The converter handles 1-bit, 8-bit, 24-bit, and 32-bit BMP variants.
Download your compressed images — typically 10-50x smaller than the original BMP. Resolution and color depth are preserved. Batch conversions arrive as a ZIP archive.
Image Format Comparison
A quick guide to choosing the right output format when converting BMP files.
| Format | Transparency | Compression | Browser Support | Best For |
|---|---|---|---|---|
| JPG | No | Lossy | Universal | Photos, email, print |
| PNG | Yes | Lossless | Universal | Logos, screenshots, graphics |
| WebP | Yes | Lossy & lossless | All modern browsers | Web images, smaller files |
| HEIC | No | Lossy | Apple only | iPhone photos (before sharing) |
| AVIF | Yes | Lossy & lossless | Chrome, Firefox, Safari 16+ | Next-gen web, best compression |
| GIF | Yes (1-bit) | Lossless | Universal | Simple animations, icons |
| SVG | Yes | Vector (scalable) | All modern browsers | Logos, icons, any resolution |
| TIFF | Yes | Lossless | Not web browsers | Professional printing, archiving |
Why Convert BMP Images?
BMP stores every pixel uncompressed, making even small images enormous. A 1920x1080 BMP is about 6 MB; the same image as JPG is under 500 KB. Convert BMP to save storage and bandwidth.
No website, social platform, or email service accepts BMP uploads. Convert BMP to JPG or PNG to share your images on the web, via email, or on any social media platform.
Modern phones, tablets, and many applications do not open BMP files. Convert BMP to JPG or PNG for universal compatibility across every operating system, browser, and mobile device.
If you need lossless compression without the BMP bloat, convert to PNG. File size drops by 50-80% while preserving every pixel exactly. Ideal for screenshots and pixel art originally saved as BMP.
Old Windows applications and scanners often saved files as BMP. Batch convert archived BMP collections to JPG or PNG to free up storage space and make them accessible on modern devices.
Convert BMP files directly in your browser — no Photoshop, no plugins, no downloads. Files up to 10 MB are always free, and converted files are deleted from our servers within 24 hours.
About the BMP Format
BMP (Bitmap Image File) is a raster image format developed by Microsoft, dating back to 1986. It stores pixel data with little to no compression — each pixel's colour value is written directly into the file, resulting in a faithful but very large representation of the image. While BMP can optionally use RLE (Run-Length Encoding) compression, this is rarely applied in practice, and the format is primarily associated with uncompressed image storage.
BMP is rarely used today for general-purpose imaging due to its extremely large file sizes compared to modern alternatives like PNG or WebP. Its primary remaining use cases are in Windows system resources, legacy desktop applications, and scenarios where raw, uncompressed pixel data is required for processing. BMP offers limited transparency support and no features like animation or metadata. For virtually all modern workflows — web, mobile, print, or archival — other formats provide better compression, features, and compatibility.
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