BMP → PNG
Convert BMP to PNG
Free, instant and 100% private. Your BMP file is converted on your own device and never uploaded anywhere.
Drop your BMP file here
or click to choose — converted to PNG instantly, on your device
Nothing is uploaded. Your files never leave this browser.
Converting BMP to PNG is a common task when you need lossless quality. BMP (Bitmap) is an old, typically uncompressed Windows raster format. It stores raw pixel data, so quality is perfect but files are enormous — which is why converting BMP to PNG, JPG or WebP is so common. PNG, on the other hand, gives you lossless quality and transparency (alpha) support. ZeroUpload performs this conversion entirely inside your browser, so your BMP file is never uploaded to a server.
How to convert BMP to PNG
- 1
Drop your BMP file into the box (or click to select it).
- 2
ZeroUpload converts it to PNG instantly, right inside your browser.
- 3
Download your new PNG file. Nothing was ever uploaded.
When should you convert BMP to PNG?
You should convert BMP to PNG when you want logos and brand assets that need a transparent background but your source is BMP. Typical situations include exporting from legacy Windows software, raw pixel-perfect intermediates, where the destination expects PNG instead.
BMP vs PNG
Bitmap Image (BMP)
BMP (Bitmap) is an old, typically uncompressed Windows raster format. It stores raw pixel data, so quality is perfect but files are enormous — which is why converting BMP to PNG, JPG or WebP is so common.
Strengths
- + Lossless, raw pixels
- + Simple, well-documented
Trade-offs
- – Huge file sizes
- – No real web support
- – No compression
Portable Network Graphics (PNG)
PNG (Portable Network Graphics) is a lossless raster format with a full alpha (transparency) channel. It reproduces sharp edges and text without compression artefacts, making it the default for logos, icons, UI assets and screenshots.
Strengths
- + Lossless quality
- + Transparency (alpha) support
- + Great for sharp edges and text
Trade-offs
- – Larger files than JPG for photos
- – No animation
Frequently asked questions
How do I convert BMP to PNG? +
Drop your BMP file into the box above (or click to choose it), and ZeroUpload converts it to PNG right inside your browser. Then download the result. No account, no waiting.
Is it safe to convert BMP files here? +
Completely. ZeroUpload does the entire conversion on your own device. Your BMP file is never uploaded to any server, so your data stays 100% private.
Does converting BMP to PNG cost anything? +
No. It is free with no limits and no signup. Because the conversion runs on your device, there are no server costs and therefore no paywalls.
What is the difference between BMP and PNG? +
BMP is an uncompressed raster format that stores pixel data with maximum fidelity. PNG is a lossless image format with transparency support, ideal for graphics, logos and screenshots. Converting from BMP to PNG trades lossless, raw pixels for lossless quality.
Will it work offline? +
Yes. Once the page (and engine) has loaded, the BMP to PNG conversion works even with your internet disconnected, because everything happens locally.