BMP to JPG Converter

What Does This Tool Do?

This tool converts BMP (Bitmap) images into JPG (JPEG) format directly in your browser. BMP files store pixel data without compression, resulting in extremely large file sizes that are impractical for web use or email. By converting to JPG, you can shrink a BMP file by 90-95% while retaining excellent visual quality for photographs and complex images.

How to Convert BMP to JPG

1. Upload your BMP file — drag and drop or click.
2. Verify the format — auto-detected.
3. Adjust quality — use the slider to balance file size and visual fidelity.
4. Click Convert — instant in browser.
5. Compare results — side by side with sizes.
6. Download — save converted file.

BMP vs JPG — Key Differences

BMP is an uncompressed raster format that stores every pixel individually, producing files that can be tens of megabytes even for modest resolutions. JPG uses lossy DCT-based compression to dramatically reduce file size while keeping visual quality high for photographic content. BMP supports up to 32-bit color with an alpha channel, whereas JPG is limited to 24-bit color with no transparency support. For photographs and natural images, JPG is the clear choice for storage and distribution, while BMP is mainly used in legacy Windows applications and raw image pipelines.

When to Use JPG Instead of BMP

JPG is the better choice whenever you need to share images online, attach photos to email, or display images on the web. The dramatic file size reduction makes pages load faster and saves storage space. Use JPG for photographs, scanned documents, and any image where a small amount of compression artifacts is acceptable in exchange for a 90%+ reduction in file size.

Frequently Asked Questions

How much smaller will my JPG file be compared to the BMP?

Typically 90-95% smaller. A 10 MB BMP photograph will usually compress to 500 KB-1 MB as a JPG at high quality, depending on image complexity and the quality setting you choose.

Will I lose image quality converting BMP to JPG?

JPG is a lossy format, so there is some quality loss. However, at quality settings of 80-90%, the difference is virtually imperceptible to the human eye for photographs. You can use the quality slider to find the best balance for your needs.

Does the JPG format support transparency?

No. JPG does not support transparency. If your BMP has transparent regions, they will be filled with a solid background color (typically white). If you need transparency, consider converting to PNG or WebP instead.

Is my image uploaded to a server?

No. The conversion happens entirely in your browser using the HTML Canvas API. Your image never leaves your device.