BMP PNG

BMP to PNG Converter

Convert BMP to PNG in your browser. Free, private, and fast. No uploads — the conversion runs entirely on your device.

Drag & drop your BMP file here

or

Max file size: 50 MB · Your file stays in your browser

Your file is processed locally in your browser — nothing is ever uploaded.

Why Convert BMP to PNG?

BMP files are uncompressed and enormous; PNG stores the identical pixels losslessly at a fraction of the size. Converting BMP to PNG is the standard way to make legacy bitmaps web-ready without losing a single pixel.

Common use cases

  • You have a BMP file and need it in PNG format for logos and icons requiring crisp transparency.
  • The target software or platform requires PNG but your file is in BMP.
  • You want to reduce file size or improve compatibility without using desktop software.
Keep in mind: PNG files are significantly larger than JPG for photographic content — not ideal for photos on bandwidth-constrained sites.

How to Convert BMP to PNG

  1. Upload or drop your BMP file into the converter above.
  2. Adjust any output settings for PNG if needed.
  3. Click Convert and download your converted file instantly.

About the Formats

BMP (Bitmap Image File)

BMP is an uncompressed raster format from the early days of Windows. Every pixel is stored without compression, which makes BMP files large but completely lossless and trivially simple to read — the reason it survives in embedded systems, scanners, and legacy Windows software.

Compatibility: Supported by all major browsers, Windows, macOS, and virtually every image editor.

PNG (Portable Network Graphics)

PNG uses lossless compression, preserving every pixel of the original without any quality degradation. It supports full alpha-channel transparency, making it ideal for logos, icons, UI elements, and any image that requires a transparent background or pixel-perfect fidelity.

Compatibility: Universal — supported by all browsers, operating systems, and image editors.

100% Private & Browser-Based

Your files never leave your device. All conversion happens locally in your browser — nothing is uploaded to any server. No sign-up required.

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Need the reverse?

PNG to BMP Converter

FAQ

Frequently Asked Questions

Yes — completely free with no sign-up, no watermarks, and no size limits for typical files.

Both BMP and PNG are lossless formats, so no quality will be lost during conversion.

Your file is processed entirely within your browser using local JavaScript. It is never uploaded to any server. Only you can access your file.

For browser-based conversion, files up to 50 MB work best. Very large files may take longer depending on your device. We recommend splitting very large files before converting.

Currently, AintoB converts one file at a time to keep the browser-based process simple and private. Reload the page to convert another file.