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PocketDesk
Your files are processed on your device, never uploaded

BMP to JPG converter

BMP files are huge. Save them as JPG and keep your disk space.

  • No upload
  • Up to 100 files
  • No sign-up

Drop BMP images here

or paste from your clipboard

92%, looks identical

How to convert BMP to JPG

  1. Select Choose files, or drop your BMP images on the box.
  2. Adjust Quality if you want a smaller or sharper file. The default suits most pictures.
  3. Select Download for one file, or Download all for a ZIP.

Why convert BMP files

BMP, or bitmap, is a Windows format from the early days of computing. It stores colour values pixel by pixel with no compression. Screenshots from old software, scanner output and legacy programs still produce BMP files. They waste space, cannot be uploaded to many websites and are not shown in some phones and chat apps. JPG is supported everywhere and is usually a small fraction of the size.

Quality and size

The quality slider sets how much detail JPG may discard. Between 85 and 92 percent the difference from the BMP is very hard to see, and the file is small. Go lower for web use. If your BMP is a screenshot with text, flat colours or sharp lines, PNG usually looks cleaner than JPG, so choose BMP to PNG instead.

What is supported

Your browser decodes the BMP, so the common types work: 24-bit and 32-bit colour, 8-bit palette images and 1-bit black and white. Very rare BMP variants that browsers cannot show will give a message that the file could not be read.

Tips

Good to know

Every file is converted on its own, so one damaged bitmap never stops the rest of a batch. File names are kept, and only the extension changes to .jpg, so you can find each result easily. The original BMP is never modified. If you plan to edit the picture again later, keep the BMP or save a PNG, because each JPG save loses a little detail.

Everything runs on your device. Your files are never uploaded.

Questions

Why are BMP files so big?

BMP stores every pixel without compression, so a photo can be ten to fifty times larger than the same picture as a JPG.

Will I lose quality?

A little, but at the default quality it is not visible. JPG discards fine detail that the eye rarely notices.

What happens to transparency?

JPG cannot be transparent, so transparent areas turn white. Use BMP to PNG to keep them.

Can I convert many BMP files at once?

Yes. Drop them together and download all of the results as one ZIP.

Is my file uploaded?

No. Your browser decodes the BMP and saves the JPG on your device.

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