BMP to JPG Converter

Convert BMP bitmaps, usually large and uncompressed, into compact JPG files.

Upload Images to Convert to JPG

Drag and drop files here, or click to browse

Your images are processed in your browser and are not uploaded to Image York.

You retain full ownership of your images. Image York does not store or claim rights. View License

Why BMP files are so big

BMP is a Windows bitmap format that usually stores pixels with no compression at all. A 1920 x 1080 image at 24 bits per pixel needs 1920 x 1080 x 3 = 6,220,800 bytes, about 5.9 MB, whatever it shows. Old scanners, screen capture tools and legacy software still produce BMPs, and they are awkward to email or put online.

JPG compresses photographs and scans very effectively, so the converted file is normally a small fraction of the BMP's size.

When JPG is not the best target

If the BMP is a screenshot, a diagram or pixel art with sharp edges and flat colours, JPG can blur the edges and add faint noise. In that case PNG is a better choice: it is lossless and still much smaller than BMP for that kind of image. Upload the BMP to the JPG to PNG converter, which accepts BMP files as well.

Settings and output

Quality: JPG is written at quality 0.9 where the format uses a quality setting. There is no slider on converter pages; use the Image Compressor if you want to choose the quality yourself.
Size limits: images longer than 4096 px on either side are scaled down to 4096 px. If a converted file would be over 10 MB, it is reduced in steps until it fits.
Batches: add several files; three are converted at a time. One file downloads directly, two or more come as a ZIP.
Metadata: EXIF data (camera, date, GPS) and colour profiles are not carried into the new file.

Where the processing happens

All major browsers can decode BMP, so the conversion runs locally in your browser. Nothing is uploaded.

Questions about this tool

My BMP file is too big to email. Will converting help?

Yes. BMP files usually have no compression at all, and JPG compresses photos and scans very well, so the result is normally a small part of the original size.

My BMP is a screenshot with text. Should I still use JPG?

PNG is better for screenshots, diagrams and pixel art, because JPG can blur sharp edges. Add the BMP to the JPG to PNG converter, which accepts BMP files too.

Can I convert many files at once?

Yes. Add several files and press Convert Images once. Three are converted at the same time. Download All gives you one ZIP file, or you can download each file on its own.

Will the JPG look the same as my BMP?

At normal viewing size, yes. The JPG is saved at quality 0.9, which keeps photos and scans looking the same while making the file much smaller. Very sharp edges in graphics can soften slightly, which is why PNG is better for screenshots.

JPG to PNG

Image Conversion

Convert JPG photos and screenshots to PNG files.

PNG to JPG