BMP to JPG converter
Convert old Windows BMP bitmaps into compact JPGs.
Drop BMP files here
BMP files (other image formats work too) · up to 100 at once · converted on this device
Tip: you can also paste a copied image.
Good web quality, much smaller.
Downsizes only; SVG is drawn at this size (default 1024).
Why convert BMP to JPG?
BMP is usually uncompressed: a 1920 × 1080 screenshot is about 6 MB. As a JPG it is typically a few hundred kilobytes.
What to expect
- Uses the browser’s own BMP decoder.
- Transparent 32-bit BMPs get the chosen background colour.
How to convert BMP to JPG
- Tap Choose images or drag your BMP files onto the light box (up to 100).
- JPG is already selected. Adjust quality or the longest edge if you need to.
- Press Convert to JPG, then save files one by one or as one ZIP.
Related reading: Check a photo for hidden GPS data before sharing.
The two formats
BMP: Windows Bitmap
Usually uncompressed, so files are huge. Common from old Windows software, scanners and Paint.
JPG: JPEG (ISO/IEC 10918-1)
The universal photo format. Lossy compression in 8×8 pixel blocks, no transparency, opens absolutely everywhere.
BMP to JPG: questions
Why are BMP files so big?
Most store every pixel as raw bytes with no compression: width × height × 3 bytes for 24-bit colour.
Is JPG or PNG better for BMP screenshots?
PNG for screenshots of text and UI (sharp and lossless), JPG for photos.
Is it free?
Yes, with no watermark or sign-up.