BMP to JPG Converter
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Transparent areas are filled with this color — JPG cannot store transparency.
The canvas previews the converted result live as you adjust the settings. Click Convert for the exact size and a before/after split — drag the divider to judge the quality, then download. The original file is never modified.
Your images are processed locally in your browser and never uploaded to any server.
BMP stores every pixel raw, so a 12-megapixel photo becomes a 36 MB file. Converting to JPG here typically cuts that by 95% with no visible difference, locally in your browser, in batches if you have a folder full of them.
BMP is about as old-fashioned as image formats get: it writes out every pixel with essentially no compression, which made sense on early Windows and makes none today. The files open everywhere but are enormous for what they contain, so they clog up email attachments and storage. JPG applies real photographic compression to that raw data, and the size drop is dramatic precisely because BMP left so much on the table.
How to use the bmp to jpg converter
- Add your BMP file(s).
- Set JPG quality. 80+ is perfect for BMP sources, which start pristine.
- Convert and marvel at the size drop.
- Download individually or as a ZIP.
Reclaiming the wasted space
This is the conversion for photographic BMPs you have been handed by an old scanner, an industrial camera, or a legacy tool. At quality 85 the JPG looks identical to the eye while shedding roughly 95% of the size, so a folder of multi-megabyte bitmaps becomes a tidy set of files you can actually send and store.
Because the BMP source starts pristine, a single JPG encode at 85 or above costs no visible quality. If you need to stay lossless, for a scan with text or a graphic where every pixel must survive, use the BMP to PNG tool instead, which keeps the data exactly while still shrinking the file.
Frequently asked questions
Why are BMP files so enormous?
BMP is essentially uncompressed: width × height × bytes-per-pixel, plus headers. A 1920×1080 24-bit BMP is about 6 MB where a quality-85 JPG of the same content is around 300 KB. A 95% saving is normal.
Is BMP to JPG lossless?
No, JPG is lossy, but the perceptual loss at quality 85+ on a pristine BMP source is essentially zero. If you truly need lossless from BMP, use the BMP to PNG tool instead.
Where do BMP files even come from?
Windows screenshot legacy tools, some scientific/industrial cameras, older scanners, and software that predates ubiquitous JPG encoding. They open everywhere but waste space dramatically.