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Convert BMP to PNG Online for Free

Upload your BMP image, convert it to PNG in seconds, and download a clean, high-quality file with no watermark. Works in your browser, no signup or software installation required, perfect for quick one-off conversions anytime.

For more powerful BMP to PNG conversion needs, UniConverter Desktop gives you much more:

  • Convert BMP to PNG in batch and save time on large files
  • Enjoy up to 130× faster conversion speed
  • Support for 1,000+ audio/video/image formats
  • An all-in-one toolkit including editing, enhancement, and more
Batch Convert BMP to PNG
Batch Convert BMP to PNG
Batch Convert BMP to PNG

How to Convert BMP to PNG Online

upload mkv format file
Step 1

Upload your BMP image file

Click the upload area or drag and drop your BMP image from your computer, cloud storage, or desktop. Our BMP to PNG converter runs entirely in your browser, so you can start converting without registering or installing any extra software.

choose mp4 as output format
Step 2

Start the BMP to PNG conversion

Confirm BMP as the input format and PNG as the output format, then click the Convert button. The tool quickly processes your bitmap image while keeping visible quality, colors, and transparency consistent with the original BMP file where supported.

download converted mp4 video
Step 3

Download your PNG image safely

When the conversion is finished, hit the Download button to save your new PNG file. Use it for websites, documents, or design tools, and repeat the same simple steps for other BMP images whenever you need another quick online conversion.

What Are BMP and PNG Image Formats?

BMP
PNG
File Extension .bmp .png
Full Name Bitmap Image File Portable Network Graphics
Description BMP is an uncompressed bitmap image format that stores pixels in a simple, raw way. It keeps every detail but usually creates very large files, which is why it is less ideal for web use or sharing compared with compressed formats. PNG is a lossless compressed image format designed for the web. It supports transparency and high-quality graphics while keeping file sizes smaller than BMP, making it great for screenshots, UI elements, logos, and online publishing.
Associated Programs Microsoft Paint, Adobe Photoshop, GIMP, IrfanView, Windows Photos Adobe Photoshop, GIMP, Preview (macOS), Windows Photos, web browsers
Initial Release 1986 1996
Developer Microsoft PNG Development Group
Common Use Cases Windows screenshots, old software graphics, icons, simple images in legacy applications, intermediate files during editing Web graphics, app UI elements, screenshots, logos with transparency, icons, images needing clear text or sharp edges
MIME Type image/bmp image/png

Key Features of This BMP to PNG Converter

Free online BMP to PNG conversion in your browser

Use the online BMP to PNG converter directly in your browser without installing software. It is ideal for quick single images or small batches handled one by one, with no registration, no watermark, and simple controls anyone can use.

High-quality, lossless bitmap to PNG output

Convert BMP to PNG while preserving visible image quality, sharp text, and accurate colors. Both formats support lossless image data, so your converted PNG keeps the same resolution and detail as the original bitmap for most everyday uses.

Smaller PNG files for easier sharing and uploads

Reduce bulky BMP file sizes by turning them into compressed PNG images. Many screenshots and simple graphics become significantly smaller as PNG, helping you upload faster, save storage space, and share files more easily without noticeable quality loss.

Support for transparency and clean backgrounds

Create PNG images that work well for websites, apps, and design tools. When your source content supports transparency, the converter outputs PNG files ready for overlays, sprites, and UI elements, keeping edges crisp and backgrounds clean where applicable.

Desktop batch conversion for many BMP images

Handle folders with hundreds of BMP files using the desktop version of UniConverter. Import multiple images at once, convert them to PNG in bulk, and save time on large projects like game assets, old screenshot archives, or product photo libraries.

Desktop control over PNG output settings

Use UniConverter desktop to fine-tune PNG results with adjustable export parameters. Tweak resolution, compression-related settings, and other options to balance file size and quality for different workflows, from archiving images to publishing them online.

Batch Convert Now
Convert Online
Batch Convert Now
Convert Online
Batch Convert Now
Convert Online

BMP to PNG Conversion FAQs

To change a BMP file to PNG online, upload your bitmap image to this converter, make sure PNG is selected as the output format, then click Convert. When processing is complete, download the new PNG file. You can repeat this as often as needed, free of charge.
Converting BMP to PNG often reduces file size because PNG uses lossless compression while BMP is usually uncompressed. For screenshots, UI graphics, or simple images, the PNG version can be much smaller while looking the same to the naked eye in most situations.
In most cases, colors, sharpness, and transparency remain visually consistent after you convert a BMP image to PNG. Both formats can store high-quality data, and this converter keeps the same resolution, so any differences are usually minimal or completely unnoticeable.
For large folders of BMP images, use the desktop version of UniConverter instead of the online tool. The desktop app lets you import multiple bitmap files, convert them to PNG in one batch, and adjust output options, which is ideal for heavy or repeated workflows.
PNG and BMP are not the same. BMP is usually uncompressed and produces huge files, while PNG is compressed and better for sharing or web use. Choose PNG when you need smaller files, transparency, and broad compatibility, and reserve BMP mainly for legacy scenarios.

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Start Converting BMP to PNG Now

Upload a BMP file and get a high-quality PNG in seconds with our free online tool. Need to process many images or fine-tune output settings? Download the desktop version of UniConverter for powerful batch BMP to PNG workflows.
Batch Process Now Upload BMP File
Batch Process Now Upload BMP File
Batch Process Now Upload BMP File
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