BMP in · BMP out
Compress BMP
Drop a BMP file, choose how hard to squeeze, and download a smaller BMP. The format never changes and the file never leaves your device.
Need a specific file size instead of a quality setting?
Get it under a size →Drop your image hereTap to choose images
Processed on your device. Nothing is uploaded.
BMP is lossless, so savings are limited. Convert to WEBP → usually goes much further.
Metadata stripped
EXIF and GPS are dropped during re-encoding.
Memory only
Files are released the moment you press Clear.
11 inputs accepted
PNG · JPG · JFIF · WEBP · AVIF · GIF · BMP · ICO · HEIC · HEIF · SVG
How BMP compression works
BMP stores pixels raw, so 'compressing' one mostly means re-encoding it efficiently or cutting its dimensions — there's no quality dial to turn. The honest advice: if you can change format, PNG holds the same pixels losslessly at a fraction of the size.
Need to hit an exact number?
Target sizes live on their own pages, where the quality search runs against your limit.
Three things worth knowing about BMP
Quality is fixed
BMP is lossless, so size only moves with dimensions or a change of format.
Compress from the original
Each lossy pass costs a little detail, so start from the master file rather than a file you already squeezed.
Nothing is uploaded
Your BMP is decoded and rewritten by the browser. Watch the network tab stay empty.
Questions
Why is there no quality slider?+
BMP is lossless and uncompressed. Only dimensions change the size meaningfully.
What should I use instead?+
PNG for identical pixels at far less weight, or JPG if the image is photographic.
Can it get my BMP under 1 MB?+
Only by resizing — the format has no compression. Convert to PNG or WEBP and it will get there easily.
Can I compress BMP files to an exact size?+
Yes — the size pages do that. Pick a limit like 500 KB and we search for the highest quality that fits underneath it.
Are my BMP files uploaded anywhere?+
No. Compression happens inside your browser, so the file never leaves your device and nothing is stored.
Is EXIF and GPS data removed?+
Yes. Re-encoding writes a clean file without camera, date or location metadata.
Your images. Your device. Your privacy.
Compress as many BMP files as you like — free, private, no account.
Try Under1MB free