Who still needs BMP?
BMP is one of the oldest image formats on Windows, and it's still around because some software and hardware never moved on. Older Windows programs, industrial and point-of-sale software, embroidery and engraving machines, some label printers, LED sign controllers, microcontroller and electronics projects, and old games or mods often accept only BMP files.
If you've ever seen a message like “please select a .bmp file” after picking a photo from your phone, this page is for you. Converting the JPG to BMP is usually the only thing the program needs.
What to expect from the BMP file
ConvertirDocs saves BMP files in 24-bit color, which is the most widely supported variant. The image is stored without compression, so the BMP will be much heavier than the JPG. That's normal for this format and is part of why it's easy for simple devices to read.
Converting to BMP doesn't add detail. The picture looks the same as the JPG, including any compression artifacts it already had. If the program gives you a choice, a higher-quality original produces a better BMP.
Tips for devices with strict requirements
Some machines and old programs also expect a specific size in pixels. If yours does, send the image to “Resize image” first and set the exact width and height, then convert it here. If a device only accepts black and white bitmaps, “Black and white image” can turn the picture into pure black and white before you save it as BMP.
Always check the manual of the device or software for the details it requires. ConvertirDocs produces a standard 24-bit BMP, which most programs that ask for BMP can open.
Private and free
The conversion is done in your browser, so your JPG images are never uploaded or stored on a server. There's no account, no watermark and no limit on how many images you convert. Select a batch and download all the BMP files in one ZIP.
The new files are created from the image pixels, so camera details stored in the JPG, such as the GPS location, are not carried over.
Typical examples
A small business needs to load its logo into an old point-of-sale program that prints it on receipts. A hobbyist wants to show a picture on a tiny display connected to an Arduino or another microcontroller, using a library that reads BMP. Someone running an embroidery or engraving machine got a photo by email and the machine's software only lists .bmp files. A teacher is using an old classroom program that was written long before JPG became the norm.
In all of these, the original JPG stays as it is. You download a new BMP copy and keep the JPG for sharing and email, where a lighter file is better.