BMP File Extension

BMP file icon

Bitmap Image Format

What is a BMP file?

Bitmap Image Format, identified by the BMP extension, is a Raster Image Files type and includes 575 files.

The Bitmap Image Format (BMP) was created by Microsoft, a company that developed file format and produced 242 programs for their use.

BMP file support extends to various operating systems, including Windows, Linux and Mac OS. If you need to view a BMP file, you can use one of 42 programs, such as IrfanView, XnView and Fotor Photo Editor.

File Signature

HEX code: 42 4D. ASCII code: BM.

How to open a BMP file?

If you’re having difficulty opening a BMP file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.

When it comes to opening and working with BMP files, IrfanView, XnView and Fotor Photo Editor are the top choices for users. If you need the newest version of IrfanView, just access the Irfan Skiljan website. From there you can download the installer compatible with all systems.

Following installation, BMP files should be automatically opened with IrfanView.

Set IrfanView as the default BMP program

Changing Default Programs in Windows

  1. Right-click your BMP file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
  2. In the pop-up window, select the IrfanView application;
  3. Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening BMP files.

Change Default Program on Mac

  1. Right click or Control + left click on the desired BMP file;
  2. Select "Open in application" and click "Other";
  3. Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
  4. Within this menu select "All Programs" and navigate to IrfanView. Check the box next to "Always open in app" to make sure it’s the default option.

Solve problems with BMP files

When issues arise with BMP files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.

What can lead to sudden IrfanView crashes?

IrfanView crashes can occur due to outdated software versions. To mitigate this, install the latest updates for Irfan Skiljan products.

Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.

What is the recommended approach to repair a damaged BMP file?

Open the damaged BMP file with a recovery program, and then select the "Repair" menu item to start the repair process. Allow the recovery process to complete, which will automatically repair the damaged raster image files.

What are the telltale signs of a corrupt BMP file?

Common indications of damaged BMP raster image files are:

  • Unexpected expansion of the total size of the BMP file;
  • Opening the file in IrfanView or other programs causes them to hang or crash;
  • Opening the file results in an error or a failed attempt;
  • While working with the file, error messages appear;
  • Editing the archive in PhotoOnWeb results in slow or unresponsive behavior;

How to edit a BMP file?

To edit BMP files, it is essential to install software that supports not only viewing but also editing the raster image files. Online BMP editors provide limited functionality compared to full-featured software for Bitmap Image Format.

List of Top BMP editors 2026

Taking into account the provided details, we have prepared a list of BMP editors that match your needs.

BMP Editor SoftwareDeveloperPlatformsOverall Rating
PhotoFiltre StudioAntonio Da CruzWindows4.9 out of 5 (53 reviews)
Windows Live Photo GalleryMicrosoftWindows4.9 out of 5 (47 reviews)
PhotopeaPhotopeaOnline Services4.7 out of 5 (43 reviews)
Easy-PhotoPrint EXCanonWindows4.6 out of 5 (47 reviews)
Paint X LiteHong ChenMac OS4.5 out of 5 (49 reviews)
SketchBookAutodeskWindows, Mac OS4.4 out of 5 (45 reviews)
Fotor Photo EditorEverimagingMac OS4.3 out of 5 (43 reviews)
ArtweaverBoris EyrichWindows4.2 out of 5 (45 reviews)
ImageJWayne RasbandWindows, Mac OS, Linux4.2 out of 5 (43 reviews)
PhotoOnWebVSOWindows4.2 out of 5 (44 reviews)

Convert to and from BMP

If handling a BMP file is problematic, consider converting it to alternative formats such as AVI, DWG, JPG, JPEG, GIF or other supported types.

Keep in mind that converting a BMP file may introduce some limitations, but the original format can often be restored.

Using offline applications such as XnView, IrfanView and FormatFactory, you can convert BMP files to various formats without losing data quality.

Convert BMP to other file formats

Converting Files to BMP Format