Convert BMP and bitmap images to JPEG directly in your browser. Great for screenshots, MS Paint files, and old bitmap images that need to be smaller and more compatible.
Last updated: August 2026
Up to 80%
Smaller Size
60-95
Quality Control
Batch
Multiple Files
Private
No Uploads
Drop BMP files here or click to browse
Supports .bmp and .dib, all processing stays in your browser
Drop or select your BMP file
One file or many, .bmp or .dib. Nothing is uploaded.
Set the JPEG quality
Defaults to 85. Set it before adding files, already-added files keep their quality.
Conversion starts automatically
Each file decodes and re-encodes as JPEG the moment it's added.
Download your JPEG
One file downloads directly, two or more can download together as a ZIP.
BMP is an old, mostly uncompressed format. Converting to JPEG is almost always the right move before sharing or publishing.
Windows screenshots
Some screenshot tools and older Windows utilities save directly as BMP. Convert to JPG before sharing.
MS Paint and legacy software exports
Older drawing and graphics tools default to BMP. A JPEG version is far smaller and easier to use elsewhere.
Scanned images from old hardware
Some scanners and fax-to-image software output BMP by default, producing very large files for simple images.
Email and upload form attachments
BMP files are often rejected or too large for upload forms and email attachments. JPEG is universally accepted.
A BMP file is close to a raw dump of pixel data. Past a small header describing width, height and color depth, the rest of the file is just the pixels themselves, row by row, with little or no compression applied. That's why a 1920 by 1080 BMP saved at full 24-bit color can land around 6MB, while the same image as a JPEG might come in under 400KB.
JPEG compression works by smoothing out subtle color variation, which is great for photos but rough on sharp edges. A BMP screenshot full of text or a line drawing exported from old CAD or diagramming software can pick up visible fuzz and color fringing around every letter and line once compressed as JPEG. For that kind of content, BMP to PNG keeps every edge crisp since PNG compression is lossless.
Not every BMP is full color. Older fax software, some monochrome scanners and early Windows tools often save BMPs at 1-bit or 8-bit color depth, using a small palette instead of millions of colors. Converting one of these to JPEG won't add detail that was never captured, though the file will still shrink since JPEG stores color information far more efficiently than an uncompressed palette does.
The 85% default in this tool suits ordinary photos and screenshots well, keeping the file small without visible loss. Scanned documents with dense text benefit from pushing the quality up closer to 95%, since small artifacts are much more noticeable around fine letterforms. Dropping much below 70% tends to introduce blocky patches around any sharp detail in the original bitmap.
Adjusting quality after files are already added
The quality slider only applies to files added after you move it. If you want a different quality on a file that's already converting, remove it and drop it in again once the slider is set.
Using JPEG for screenshots full of text or sharp lines
JPEG compression smooths subtle color variation, which works well on photos but introduces fuzz and color fringing around text and sharp edges. For that kind of content, BMP to PNG keeps every edge crisp instead.
Expecting detail that was never in the original
Older fax software and monochrome scanners often save BMPs at 1-bit or 8-bit color depth using a small palette. Converting to JPEG shrinks the file but can't add color detail that was never captured.
Trying to drop a non-BMP file
This tool only accepts .bmp and .dib files. Other formats need a different converter on this site first.
BMP files are typically uncompressed or only lightly compressed, which makes them much larger than other formats for the same image. A screenshot or scanned image saved as BMP can easily be 5 to 10 times the size of an equivalent JPEG. Converting to JPEG makes the file far smaller and easier to share by email, upload to a website or attach to a message.
JPEG uses lossy compression, so there is some quality reduction compared to the uncompressed BMP original. At the default 85% quality setting in this tool, the difference is not visible for typical photos and screenshots, while the file size drops dramatically, often by 80 percent or more.
85, the default, suits ordinary photos and screenshots well, keeping the file small without visible loss. The slider runs from 60 to 95. Scanned documents with dense text benefit from pushing closer to 95, since small artifacts are more noticeable around fine letterforms. Dropping much below 70 tends to introduce blocky patches around sharp detail.
No. Quality is applied at the moment a file starts converting, which happens as soon as it's added. Changing the slider only affects files added after that point. To apply a different quality to a file already in the list, remove it and drop it in again after adjusting the slider.
No. BMP is one of the oldest image formats and every modern browser reads it natively via the same Canvas pipeline used for JPEG and PNG, no decoding library is involved for that step. The one exception is uncommon BMP variants, such as RLE-compressed files or old OS/2-style headers, which some browsers don't decode natively. If a file fails, it's most often one of those variants rather than a corrupted file.
BMP files virtually never carry EXIF metadata in the first place, it isn't a format feature BMP typically supports the way JPEG does. So there's generally nothing to strip. The conversion still decodes to raw pixels and re-encodes as JPEG, so even in the rare case extra data was embedded, it would not carry over.
Yes. Drop or select several BMP files and each converts independently. With a single finished file, the download button saves it directly. Once two or more files finish, you get the option to download them all together as one ZIP archive.
No. Both the decoding and the JPEG encoding happen entirely in your browser. Your file never leaves your device at any point during the conversion.
No sign-up. No upload to server. Drop your BMP file above and download the JPEG in seconds.
