File Converter

PNG to BMP converter Free, private, no upload.

Convert PNG files to BMP right in your browser. BMP is required by some older Windows programs, embedded devices and printers that cannot read compressed formats. Your files are never uploaded.

or drop files anywhere · paste with Ctrl/⌘ + V

How to convert PNG to BMP

  1. 1 Drop your PNG files onto the page, or click “Choose files”. You can add many at once, or a whole folder.
  2. 2 BMP is already selected as the output. Optionally open Options to adjust max width, max height, rotate.
  3. 3 Click Convert, then Save. Converting several files? Save them all as one ZIP.

About the formats

PNG · Portable Network Graphics

PNG is a lossless image format with full transparency support. It is the standard for screenshots, logos and graphics with sharp edges.

BMP · Bitmap image

BMP is an uncompressed Windows bitmap format. Files are very large but simple, and are still used by some legacy and embedded software.

The conversion runs on your device using jSquash (MozJPEG, OxiPNG, libwebp, libavif and libjxl) compiled to WebAssembly. You can adjust: max width, max height, rotate, flip, background.

Frequently asked questions

How do I convert PNG to BMP?

Drop your PNG files onto the page, or click “Choose files”. You can add many at once, or a whole folder. BMP is already selected as the output. Optionally open Options to adjust max width, max height, rotate. Click Convert, then Save. Converting several files? Save them all as one ZIP.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser using WebAssembly. Your files never leave your device, so it is safe for private photos, contracts and business data. Once the page has loaded it even works offline.

Will converting PNG to BMP reduce quality?

No. Both PNG and BMP keep full quality, so the conversion is lossless.

Can I convert multiple PNG files to BMP at once?

Yes. Add as many PNG files as you like; they are converted in parallel on your device and you can download them all as a single ZIP.

Is it free? Are there limits?

It is free, with no sign-up, no watermark and no daily limits. Because nothing is uploaded there is no upload size limit either; the only limit is your device’s memory, which matters mostly for very large videos.

See everything the PNG converter and the BMP converter can do.