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BMP to PNG Converter — Fast & Free Online

BMP to PNG converts uncompressed bitmap pixel data into a lossless, compressed PNG with optional alpha, keeping sharp edges and preserving colors.

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Source
Drag and drop files here or click to browse

Drop your file here, or click to browse

Supports all major formats

Up to 50 MB (free)BATCH SUPPORT
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How BMP to PNG Conversion Works

BMP is an image format: it stores uncompressed pixel data in a simple row-by-row grid, resulting in large file sizes but zero quality loss. PNG is an image format that uses lossless DEFLATE compression and supports a full alpha-transparency channel, preserving every pixel exactly as encoded. This conversion changes the file's encoding, compression method, and supported feature set. The output is pixel-accurate: no further quality is lost beyond what the source already encoded. Converting between these two formats is common when the source application does not support PNG natively or when the target platform only accepts PNG. 1converter processes this conversion server-side using open-source tools. Files are transferred over HTTPS, converted on secure cloud servers, and automatically deleted after 24 hours.

Sources & specifications

How to Convert BMP to PNG

Follow these simple steps to convert your BMP files to PNG format in seconds

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Step 1

Upload your BMP file to the converter

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Step 2

Select the PNG output format and keep the default lossless settings

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Step 3

If available, enable alpha/transparent handling for images with transparency data

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Step 4

Start the conversion and wait for the PNG to finish generating

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Step 5

Download the resulting PNG and verify dimensions and color fidelity

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Average conversion time: Less than 2 minutes

Visual Conversion Preview

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Source file

Size:2.4 MB
Format:BMP
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Converting...

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Output file

This visualization shows the typical conversion process from BMP to PNG format, including expected size reduction and quality retention.

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Choose Your Conversion Quality

Select the perfect balance between quality and file size for your BMP to PNG conversion

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Low Quality

Smallest file, basic quality

File Size:Very Small
Speed:Very Fast
Quality Level
Recommended
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Medium Quality

Balanced size and quality

File Size:Medium
Speed:Fast
Quality Level
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High Quality

Larger file, great quality

File Size:Large
Speed:Moderate
Quality Level
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Maximum Quality

Largest file, best possible quality

File Size:Very Large
Speed:Slow
Quality Level

tips_and_updatesQuality Selection Tips

When to use Low/Medium:

  • •Web uploads and social media sharing
  • •Email attachments with size limits
  • •Quick previews and thumbnails

When to use High/Maximum:

  • •Professional printing and publishing
  • •Archive and long-term storage
  • •When quality is more important than size

Image Tip: For photos, Medium quality offers the best balance. For graphics with text or sharp edges, use High or Maximum quality to preserve clarity.

Why Convert BMP to PNG?

Discover the advantages of converting your BMP files to PNG format

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Lossless PNG compression reduces file size versus BMP’s uncompressed storage

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Preserves crisp pixel art and sharp edges without JPEG-style artifacts

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Supports transparency (alpha channel) if your BMP includes masked/used alpha data

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Keeps exact color values for editing, re-saving, and repeated processing

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Improves cross-platform compatibility for viewing and web workflows

Additional Features

169+
Supported Formats
<2 min
Average Time
24/7
Available
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Popular Use Cases

See how professionals use our BMP to PNG converter in real-world scenarios

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Convert a BMP screenshot to PNG for smaller, lossless archiving

Convert BMP to PNG for this purpose quickly and easily.

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Prepare pixel-art assets for web use while keeping exact colors

Convert BMP to PNG for this purpose quickly and easily.

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3

Export scanned images from BMP into PNG for cleaner downstream edits

Convert BMP to PNG for this purpose quickly and easily.

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4

Create transparent overlays/icons when the source is a BMP with alpha or mask

Convert BMP to PNG for this purpose quickly and easily.

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5

Convert legacy BMP textures for use in software that prefers PNG

Convert BMP to PNG for this purpose quickly and easily.

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Trusted by Professionals In

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Web Development
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Graphic Design
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Content Creation
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Frequently Asked Questions

Everything you need to know about converting BMP to PNG

BMP is typically uncompressed, and PNG is lossless, so converting BMP to PNG preserves pixel values without quality loss.
Often yes: PNG uses compression suited to the pixel patterns in BMP, while BMP stores raw pixel data and is usually larger.
PNG can store an alpha channel, but BMP only has transparency in limited/variant ways; if the input doesn’t contain alpha, the output PNG will be fully opaque.
Yes—PNG is broadly supported across browsers, image editors, and operating systems, unlike BMP which is less efficient and sometimes less convenient for web use.

Still Have Questions?

Our support team is here to help you with any questions about BMP to PNG conversion.

Contact SupportView All FAQs
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