How to Convert Multiple BMP Files to JPG at Once
BMP is Windows' old uncompressed bitmap format. Drop your BMP files into the converter below and every one becomes a JPG straight away, right on your any computer or phone – nothing is uploaded.
Drop BMP files here or browse
Accepts HEIC, WebP, PNG, JPG, BMP, GIF and SVG · multiple files · nothing is uploaded
Converted on your device. Your photos never leave your browser.
Step by step: Convert Multiple BMP Files to JPG at Once
- 1
Open this page on your computer or phone.
- 2
Select all your files at once – Ctrl+A (Windows) or ⌘A (Mac) in the file picker, or tap Select on iPhone – or drag a whole selection onto the box.
- 3
The JPG is made as soon as the file is added. Adjust Quality if you want a smaller file.
- 4
Each file converts as soon as it's added. Click Download all to get every converted file in one ZIP.
What changes when you convert BMP to JPG
- JPG is lossy. The Quality slider starts at 90%, which looks the same as the original for nearly every photo; lower it for a smaller file and the preview shows the new size before you download.
- BMP files are uncompressed, so the JPG will usually be a fraction of the size.
About BMP and JPG
- BMP is Windows' old uncompressed bitmap format. Files are very large for their size in pixels, and most websites, chat apps and phones won't accept them.
- JPG (also written JPEG) is the most widely supported photo format. Its lossy compression keeps photos small, but it has no transparency and loses a little detail every time it's re-saved.
Good to know
- There's no limit on the number of files. Large batches just take longer, because your own device does the work.
- Duplicate names get a number added (photo.jpg, photo-2.jpg) so nothing in the ZIP is overwritten.
BMP vs JPG
| BMP | JPG | |
|---|---|---|
| Compression | Usually none | Lossy, adjustable quality |
| Transparency | Rarely supported | No – transparent areas become a solid colour |
| Animation | No | No |
| Best for | Legacy Windows software | Photos you want to share, email or upload anywhere |
| Support | Windows; limited elsewhere | Universal |
Frequently asked questions
Will I lose quality converting BMP to JPG?
At the default 90% quality the difference is practically invisible. JPG is lossy, so very low quality settings will show blur or blocky edges.
Can I convert several BMP files at once?
Yes. Add as many as you like; each converts on its own, and Download all saves them in one ZIP.
Are my photos uploaded to a server?
No. The conversion runs in your browser using your device's own processor, so your photos never leave your device. You can even disconnect from the internet once the page has loaded.
Need more options? Open the full Image Converter tool →