BMP to PNG Converter Online
Convert BMP images to PNG format online, for free. No upload to any server. No signup. Adjust quality and download in one click.
Convert to
Drop images here
JPG, PNG, WebP, BMP · Multiple files supported
How to Convert BMP to PNG?
Three steps. Done in seconds.
Upload your BMP file
Click 'Choose Files' or drag and drop your BMP image. Multiple files are supported for batch conversion.
PNG is pre-selected
The converter is already set to output PNG. Adjust the quality slider to balance file size and fidelity.
Convert and download
Click Convert, then Download. Your PNG file is processed in your browser and saved instantly to your device.
Why Convert BMP to PNG?
PNG's lossless compression reduces BMP file size by 60–80% while preserving every pixel exactly. Use BMP to PNG when you need a lossless result with a much more practical file size — and full support in all modern applications.
About BMP
BMP stores image data without any compression. This preserves perfect quality but produces enormous files. BMP is used by some legacy Windows software and industrial applications.
About PNG
PNG compresses image data losslessly — no pixel information is lost, but file sizes are dramatically smaller than BMP. PNG is universally supported and is the standard lossless format in all modern software and browsers.
Easy to Use
Upload your BMP file, click Convert, download the PNG. No settings to configure, no account required.
Best Quality
Conversion runs on your device using the browser Canvas API. Adjust the quality slider for the exact file size you need.
Free & Secure
Your BMP images never leave your device. Everything processes in your browser tab — nothing stored, nothing shared.
Other BMP Conversions
Convert BMP to other formats using the same free tool.
Convert Other Formats to PNG
Convert any image format to PNG — all in the same free browser tool.
All Image Format Conversions
Every format pair — convert any combination of JPG, PNG, WebP, and BMP for free.
Related Tools
More free image and file tools — browser-based, no signup.
Image Compressor
Compress JPG, PNG, and WebP up to 80% smaller. Batch support, browser-based.
Image Converter
Convert between all formats — JPG, PNG, WebP, BMP — in one tool.
PDF to JPG
Extract pages from any PDF as JPG images. Runs in your browser.
PDF Compressor
Reduce PDF file size with FlateDecode re-encoding. Private, instant.
PDF Locker
Password-protect any PDF. Processed in-memory, never stored.
Color Picker
Pick colours from any image and get HEX, RGB, and HSL codes.
Frequently Asked Questions
Common questions about converting BMP to PNG online.
Is this BMP to PNG converter free?
Yes. Completely free — no signup, no account, no limits. Convert as many files as you need.
Are my BMP images uploaded to a server?
No. All conversion runs in your browser using the HTML5 Canvas API. Your images never leave your device.
Why convert BMP to PNG?
PNG's lossless compression reduces BMP file size by 60–80% while preserving every pixel exactly. Use BMP to PNG when you need a lossless result with a much more practical file size — and full support in all modern applications.
Can I convert multiple files at once?
Yes. Upload multiple files at once and convert them all in one click. Each file downloads individually.
Does converting BMP to PNG reduce quality?
No. PNG uses lossless compression — every pixel is preserved exactly. There is no quality loss when converting to PNG.
Your Images Stay on Your Device
ToolsNest image tools are 100% client-side. Conversion uses the browser's native Canvas API — no file is ever sent to a server. Safe for confidential, medical, or business images.