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Convert BMP to JPG Online Free

Compress massive BMP bitmap files into compact JPEG format. Reduce file sizes by 90-95% with adjustable quality. Perfect for modernizing legacy bitmap images.

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Drop BMP files here to convert to JPG

or click to browse · BMP files · Multiple files supported

85%

Why Convert BMP to JPG?

BMP (Bitmap) is an uncompressed raster format that stores every pixel's raw color data, producing extremely large files. A simple 12-megapixel photo can be 36 MB as BMP but only 2-3 MB as JPEG. Converting BMP to JPG is one of the most impactful file size reductions you can achieve: typically 90-95% smaller files with minimal visible quality loss. BMP files are impractical for web use, email attachments, cloud storage, and most modern workflows. They were common in early Windows applications but have been superseded by more efficient formats. If you have a collection of BMP files from an older camera, scanner, or legacy software, batch converting to JPG will reclaim enormous amounts of storage space while making the images far easier to share and use.

BMP vs JPG Comparison

BMP stores pixels as raw uncompressed data with zero quality loss but produces enormous files. JPG uses sophisticated lossy compression algorithms to discard imperceptible visual data, reducing files to a fraction of the original size. A 4000x3000 BMP weighs exactly 36 MB while the same image as JPG at 85% quality might be 1-2 MB. BMP supports 1-bit through 32-bit color depth with no compression artifacts. JPG supports 24-bit color with adjustable compression and is universally supported across every device and platform. There is virtually no scenario today where BMP is preferable to JPG for photographs. The only use case for BMP is specialized software that requires raw pixel access, which is increasingly rare.

Frequently Asked Questions

How much will BMP to JPG conversion reduce file size?
BMP files are uncompressed, so converting to JPG typically reduces file size by 90-95%. A 30 MB BMP file might become just 1-3 MB as JPG at quality 85%. This is one of the most dramatic file size reductions possible in image conversion.
Why are BMP files so large?
BMP (Bitmap) stores every pixel's color value without any compression. A 4000x3000 pixel image at 24-bit color depth uses exactly 36 MB of data (4000 x 3000 x 3 bytes). JPEG compresses this by discarding imperceptible visual data, achieving massive size reductions.
Will I notice quality loss converting BMP to JPG?
At quality settings of 85% or higher, the quality loss is virtually invisible to the human eye, especially for photographs. Since BMP stores raw uncompressed data, you get a clean starting point for JPEG compression. For text-heavy images or graphics, you may want PNG instead to avoid compression artifacts.
When should I use BMP instead of JPG?
BMP is rarely the best choice today. It was historically used in Windows applications and for raw image processing where exact pixel data matters. For most purposes, JPG (photos), PNG (graphics), or WebP (web) are superior. Convert BMP to JPG when you need to share, upload, or store images more efficiently.
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