Convert BMP to JPG Online Free

Turn heavy .bmp files into light JPGs compatible with any system — the reduction usually tops 90%. Supports batch conversion with ZIP download. No sign-up, no file upload.

Drag one or more BMP files here

or click to browse — multiple files supported · also accepts PNG, JPG, and WebP by drag-and-drop

Convert to

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JPEG —

Original format

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Final format

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Original size

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Final size

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BMP or JPG: why convert?

BMP is a format created by Microsoft in the 1980s that stores the image with almost no compression at all. Every pixel takes up its own space in the file, which guarantees absolute quality — and produces huge files. A single Full HD image tops 6 MB.

JPG does the opposite: it discards information the human eye barely notices to reach files dozens of times smaller. In photos and scans, the result looks visually equivalent to BMP at a fraction of the size, and it’s readable by virtually any program, site, or app.

In practice, almost no one chooses to work in BMP — people simply receive files in this format from scanners, Paint, or old systems, and need to send them somewhere that won’t accept the size or the extension. Converting to JPG is the natural path when the image is a photo or scan. If it’s a screenshot, a drawing, or an image with text, prefer PNG so the edges don’t blur.

Criterion	BMP	JPG
Compression	Practically none	Lossy
Typical Full HD image	About 6 MB	300 KB to 1 MB
Transparency	No (in practice)	No
Accepted on sites and forms	Rarely	Almost always
Web usage	Not suitable	Standard
Most common source	Scanners, Paint, legacy systems	Cameras and phones

Why use this converter?

Total privacy

Conversion happens right in your browser. No file is ever sent to an external server.

Batch conversion

Select dozens of images at once and download them all converted in a single ZIP file.

Instant preview

See the converted image before downloading, with the final size shown in real time.

Works offline

Once the page has loaded once, the tool keeps working even without an internet connection.

How to convert BMP to JPG step by step

Start by loading your files. Drag the .bmp images into the dashed area at the top of the page, or click it to open your system’s file picker, which is already filtered to show only BMP files. There’s no limit on quantity or size, which matters a lot here: BMP files are naturally heavy, and many online tools refuse uploads over a few megabytes. Since nothing is sent to a server here, file size is never an obstacle. Conversion starts as soon as the files come in, with no confirmation button.

With a single file, the tool opens in Single image mode and shows a preview of the generated JPG with four indicators: original format, final format, original size, and final size. Those last two are worth watching closely for this conversion, since the savings usually top 90% — it’s the format pair with the biggest size reduction of all. With two or more files, the tool automatically switches to Batch mode, showing a table with each image’s name, size before and after, and a status dot that turns green as each conversion finishes.

The target format on this page is already set to JPEG. If the image is a screenshot, a drawing with few colors, or something with fine text, check the preview closely before downloading: JPEG compression creates small blurs around sharp edges. In that case, click PNG in the buttons above the preview — the conversion redoes itself instantly, with no page reload or reselecting files, and the PNG is still much smaller than the original BMP. The two buttons at the top of the panel also switch manually between single and batch mode.

To finish, download the result. In single mode, use the Download converted image button. In batch mode, the Download all converted (ZIP) button bundles everything into one compressed file. If you only want part of the images, each table row has its own download button and an X to discard that item before generating the ZIP. All conversion runs inside the browser, with no upload — safe for scans of personal documents.

Frequently asked questions

Why is my BMP file so heavy?

Because BMP uses almost no compression: it stores the color of every pixel individually. A 1920 by 1080 image takes about 6 MB in BMP, while the same image fits in 300 to 800 KB as a JPG. That’s the main reason almost no one uses BMP outside specific Windows workflows.

How much smaller does the file get when converting BMP to JPG?

The reduction is usually dramatic, between 85% and 95% for photos and scans. A 12 MB BMP often becomes a 500 KB to 1 MB JPG. The preview shows the final size before you download, so you can check the result right away.

Where do the BMP files I receive usually come from?

Usually from three sources. Older scanners and all-in-one printers still save scans as BMP by default in some drivers. Windows Paint kept BMP as its default format for many years, so old screenshots and drawings often ended up this way. And legacy corporate systems, especially registration and time-clock software, export images in this format. In all these cases the file works fine, but it’s too large to attach to an email or upload to a form.

Does converting BMP to JPG lose quality?

Yes, a little, because JPEG uses lossy compression while BMP keeps the image intact. In photos and scans the difference is imperceptible to the naked eye given the space saved. In screenshots, images with few colors, and pictures with fine text, the loss becomes visible — in those cases, convert to PNG instead of JPG.

Can I convert several BMP files to JPG at once?

Yes. Drag as many files as you want into the upload area — the tool automatically switches to batch mode, converts all of them, and unlocks a ZIP download. Each row in the table also has its own download button.

I need to submit a BMP scan to a form that only accepts JPG. How do I fix that?

Converting to JPG solves both problems at once: it delivers the required format and drops the file size, which is usually the second obstacle on these forms. Most application, enrollment, and registration systems cap uploads at 1 or 2 MB, and a BMP rarely fits that. If the file is still over the limit even as a JPG, use the image compressor after conversion to fine-tune the final size without changing formats.

Does the tool work on mobile?

Yes. It works in any modern browser — Android, iPhone, tablet, or computer — no app install needed.