BMP to JPG Converter Online

The Bitmap (BMP) format is a relic from the early days of Windows. Because it stores exact color data for every single pixel without using any compression, a standard 1080p BMP image can consume an absurd 6 megabytes of disk space. This tool to convert these bloated files into highly optimized JPGs lets you actually upload or email them.

How It Compresses Data

The conversion from BMP to JPG introduces "lossy" compression. The JPG algorithm analyzes the image and permanently discards subtle color variations that the human eye can't easily detect. By dropping this invisible data, a 15 MB Bitmap file can often be shrunk down to a 500 KB JPG file—a massive 96% reduction in size.

Local Client-Side Processing

Normally, converting image formats requires uploading your file to a cloud server using tools like ImageMagick. This tool is built to use your browser's native HTML5 Canvas API instead. The script draws your BMP onto an invisible canvas in your local memory, and then triggers the browser's internal engine to export it as a JPG. Your image never leaves your computer.

A Note on Transparency

Neither BMP nor JPG supports transparent backgrounds. If you are trying to convert an image and preserve a cutout background, you should be converting to the PNG or WebP formats instead.