Be Converter
Free Online PNG Converter | Fast & Secure Image Tool

BMP to PNG Converter – Smashing File Sizes & Quality

Convert BMP images to PNG format instantly. Slash file sizes by up to 80% without losing a scrap of quality. Free, secure, and works in your browser.

Select BMP Files

Drop your BMP bitmap images here for PNG conversion

or drag files here

Maximum 15MB per file • Up to 15 files
ImageTiny app icon

ImageTiny

On-device

Want this image workflow on iPhone?

ImageTiny brings on-device compression, crop, resize, format conversion, and metadata cleanup to iPhone for lighter sharing, storage cleanup, and batch photo edits.

Batch 200 Privacy-first Compress / crop / resize
Download on App Store

Works best for HEIC, JPG, PNG, and WebP photo workflows.

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How to Use

  1. 1

    Upload BMP Files

    Click the upload button or drag & drop your BMP bitmap files

  2. 2

    Start Conversion

    Click "Convert to PNG" to begin the conversion process

  3. 3

    Wait for Processing

    Conversion happens instantly in your browser with real-time progress

  4. 4

    Download PNG Files

    Download individual files or use "Download All" for batch download

Why Use Be Converter?

Quick Browser Conversion

Convert BMP images to PNG directly in your browser without uploading files to a server

Optimised Output

Get PNG files optimised for sharing, publishing, and web use

Batch Conversion

Convert up to 15 BMP files to PNG simultaneously for efficient workflows

Privacy & Security

All processing happens locally in your browser. Images never uploaded to servers

Quality Control

Fine-tune output settings when supported to balance image clarity and file size

Free & Unlimited

No registration required. Unlimited conversions. Completely free forever

Frequently Asked Questions

Why convert BMP to PNG?
PNG provides the same lossless quality as BMP but with efficient compression, resulting in 60-80% smaller files. PNG also adds transparency support, better metadata handling, and is universally supported on the web — none of which BMP offers.
How much size reduction can I expect?
PNG typically reduces BMP file sizes by 60-80% through efficient lossless compression. A 25MB BMP file might become a 5-10MB PNG with absolutely no quality loss — every pixel is identical.
Will I lose any quality converting BMP to PNG?
No, absolutely not. Both BMP and PNG are lossless formats. The conversion preserves every single pixel perfectly. PNG simply applies efficient compression to represent the same pixel data in less space.
Is PNG always better than BMP?
For virtually all use cases, yes. PNG offers the same lossless quality as BMP, adds transparency and metadata support, produces much smaller files, and is web-compatible. BMP is only preferable when a specific Windows application or legacy system requires it.
Are my images safe and private?
Absolutely! All BMP to PNG conversion happens locally in your web browser. Your images never upload to any server. Once you close the page, all data is permanently deleted.

About BMP to PNG Converter

Our BMP to PNG converter makes it easy to convert uncompressed bitmap images to efficient PNG format. Get 60-80% file size reduction with zero quality loss, plus gain transparency support for modern web use. Fast, free, and works entirely in your browser.

Expert Tips for BMP to PNG Conversion

  • BMP to PNG is a lossless conversion — every pixel is preserved perfectly, just stored more efficiently
  • Use PNG over BMP for archival storage to save 60-80% disk space with identical visual quality
  • PNG adds alpha transparency support that BMP lacks, making your images more versatile for design work
  • Batch convert your BMP library to PNG to reclaim significant storage space without any quality compromise
  • After converting to PNG, your images are immediately web-ready unlike BMP which most browsers handle poorly