Convert BMP to JPG
Free, unlimited BMP to JPG conversion that runs entirely inside your browser. No upload, no sign-up, no watermark.
Convert your BMP files to JPG
or drop them here, or paste with Ctrl+V · files never leave your device
Settings
Nothing queued yet. Add as many files as you like — everything runs on your own device.
Nothing is uploaded
Conversion runs in your browser. Your files never touch a server, so there is no copy of them to leak.
No sign-up, no watermark
No account, no email, no daily limit, and nothing stamped across your image.
Batch and folders
Drop a hundred files at once and download the results as a single ZIP.
Works offline
Once this page has loaded you can disconnect entirely and it still works.
This converter turns BMP images into JPG files without uploading anything. The conversion runs inside this page using your own device's processor, so your photos never leave your computer — there is no server copy to worry about, no queue to wait in, and no limit on how many files you convert.
BMP is Microsoft’s raw, uncompressed bitmap format — every pixel stored literally, with no compression at all. Strong on Windows, weak everywhere else, and never used online. JPG, by contrast, universal. If a program can open an image at all, it can open a JPG.
JPG remains the universal currency of images. When a system will not tell you what it accepts, or an upload keeps failing for no stated reason, a JPG is the file most likely to be accepted.
How to convert BMP to JPG
- Add your BMP files. Drag them onto the box above, click to browse, or paste an image straight from your clipboard. You can add as many at once as you like.
- Adjust the settings if you need to. The defaults suit most images. Raise the quality slider if the image contains text or flat colour.
- Download the JPG file. Each file gets its own download button as soon as it finishes, and you can pull the whole batch down as a single ZIP.
What changes when you convert BMP to JPG
Every format conversion involves trade-offs, and vague tools hide them. Here is exactly what happens to your image in this particular conversion.
- BMP is lossless and JPG is lossy, so this conversion discards some detail permanently. At the default quality the difference is invisible on photographs, but flat colour, screenshots and text will show faint halos — keep the quality high for those.
What happens to the file size
Measured, not estimated: two 1200 x 800 pixels references — a photograph and a flat-colour graphic — put through this converter.
| Reference image | As BMP | As JPG | Change |
|---|---|---|---|
| Photograph | 2.75 MB | 211 KB | -93% |
| Graphic with text | 2.75 MB | 21 KB | -99% |
Yours will differ: size depends more on what is in the picture than on the formats involved.
About BMP (Windows Bitmap)
BMP is Microsoft’s raw, uncompressed bitmap format — every pixel stored literally, with no compression at all.
Where you probably got it: Legacy Windows applications, scanners, and industrial equipment.
Strengths
- Dead simple and completely lossless
- Read by even the most primitive Windows tooling and embedded devices
- No decoding overhead, which some industrial and medical systems require
Limitations
- Enormous files — often 10–20x larger than a PNG of the same image
- Poorly supported on the web; browsers can display it but nobody serves it
- No transparency in the widely supported 24-bit form, so transparent areas are filled with a solid colour
About JPEG (Joint Photographic Experts Group)
JPG is the lossy photographic format that has been the default for digital cameras and the web since 1992.
Support: Universal. If a program can open an image at all, it can open a JPG.
Strengths
- Opens in literally every image viewer, editor, printer and web form ever made
- Very small files for photographs, with a quality dial you control
- Hardware-accelerated decoding on every phone and camera
Limitations
- No transparency — transparent areas have to be flattened onto a solid colour
- Lossy: each re-save discards a little more detail permanently
- Blocky artefacts around sharp edges, text and flat colour
Is it safe to convert BMP online?
Here, yes — and you can check rather than trust. Open your browser’s developer tools, switch to the Network tab and convert a BMP file: no request carrying your image is made. Disconnect from the internet after this page has loaded and the converter still works, which would be impossible if a server were doing the conversion.
That is worth verifying wherever you convert, because most online converters do upload, and BMP files are so often personal photos and documents people would not hand to a stranger. Once a file is on somebody else’s server you are relying on a privacy policy rather than on anything you can observe. We wrote up how to tell a safe converter from a risky one in more detail.
Frequently asked questions
How do I convert BMP to JPG?
Drag your BMP file onto the box above, or click it to browse. The conversion starts immediately in your browser and the JPG download appears within a second or two for most images. You can drop in a whole folder of files at once and download them together as a ZIP.
Are my BMP files uploaded to a server?
No. The conversion happens locally in your browser, so your files are never transmitted anywhere — the tool even works with the network disconnected once the page has loaded. That is also why there is no file size or file count limit: nothing costs us anything per conversion. The practical ceiling is your own device's memory, which on a phone means very large images may fail.
Will converting BMP to JPG reduce the quality?
Slightly, by design. JPG is a lossy format, so it approximates the image to save space. At the default quality setting the loss is invisible on photographs; on screenshots and text you may see faint halos, so raise the quality slider or choose PNG instead.
What is the difference between BMP and JPG?
BMP is Microsoft’s raw, uncompressed bitmap format — every pixel stored literally, with no compression at all. JPG is the lossy photographic format that has been the default for digital cameras and the web since 1992. In practice the choice comes down to compatibility: strong on Windows, weak everywhere else, and never used online. Meanwhile universal. If a program can open an image at all, it can open a JPG.