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Convert BMP files to JPG online for free. Upload your BMP image and download a compact JPEG in seconds. No software, no signup, no watermarks.
BMP (Bitmap) is an uncompressed image format native to Windows that stores every pixel without any compression, resulting in very large files. A BMP image that is several hundred megabytes can be reduced to a few megabytes as a JPG with no visible quality difference at normal display sizes. Converting to JPG makes BMP files shareable by email, uploadable to any web platform, and usable in virtually any application.
BMP files are rarely used intentionally today — they appear most commonly as output from older Windows applications, screen capture tools, and legacy software. Converting to JPG is the standard way to make these files useful in modern workflows.
BMP is one of the oldest and largest image formats still in use. Converting to JPG is almost always the right step.
Older Windows applications — CAD tools, legacy design software, older versions of Microsoft Paint — sometimes produce BMP output by default. These files are often enormous (a 1920×1080 BMP is approximately 6 MB uncompressed) and cannot be emailed or uploaded to most platforms without conversion. Converting to JPG reduces the file to a fraction of that size.
Some screen capture tools and remote desktop applications save screenshots as BMP files. Converting to JPG before sharing or attaching to a support ticket, document or email reduces the file size dramatically and ensures the recipient can open it without any compatibility issues.
Older scanners and image digitisation tools sometimes output BMP files. Converting these to JPG makes the scans shareable, storable in cloud services like Google Photos or iCloud, and compatible with any modern photo management or editing application.
Quick answers about how this tool works and how to get the best results.
BMP stores image data as raw pixel values with no compression. Every pixel is stored individually at full colour depth, with no algorithm to reduce redundant information. A 1920×1080 image stored as a 24-bit BMP requires approximately 6 MB. The same image as a JPG at quality 85 is typically under 500 KB — a 10 to 12× reduction.
JPG is a lossy format, so some fine detail is discarded during compression. At quality settings of 85 to 95 this difference is not visible at normal screen sizes. BMP images are often screen captures or diagrams with sharp edges — these can show subtle softening at lower quality settings, so using 85 or above is recommended.
A JPG from the converted BMP can be attached to emails, uploaded to any web platform, shared on social media, inserted into Office documents without compatibility warnings, and opened in any image viewer or editor on any operating system. BMP cannot reliably do any of these things without conversion first.
Yes. The BMP is decoded in your browser and never sent to a server. Close the tab and the image data is cleared from memory.