🖼️ Image Converter
Convert BMP to PNG — Free & Private
Shrink bulky BMP bitmap files into lean, lossless PNG — reduce size by up to 80% with zero quality loss. No upload, no account, instant in your browser.
✓ Free forever
✓ No upload
✓ No signup
✓ Instant
Ready to convert your BMP?
100% in your browser · Up to 50 MB · Zero quality loss
How to Convert BMP to PNG
1
Open the Converter
Click "Convert Now" to open the converter with BMP → PNG pre-selected.
2
Upload Your BMP
Drag & drop your BMP file or click Browse. Supports files up to 50 MB.
3
Convert Instantly
Conversion happens in your browser — no uploads, no waiting.
4
Download PNG
Your smaller, lossless PNG downloads automatically.
Why Convert BMP to PNG?
- 📉 Up to 80% smaller — PNG's lossless compression drastically reduces BMP file sizes
- 🌍 Better compatibility — PNG is universally supported across web, apps, and design tools
- 🔲 Transparency support — PNG supports alpha channels, unlike BMP
- 🔒 100% private — files stay on your device, never uploaded to any server
- 🆓 Free forever — no watermarks, no limits, no credit card
- ⚡ Instant conversion — uses browser Canvas API for real-time processing
Features
100% Private
Files never leave your browser. Zero server uploads.
Instant
Conversion completes in seconds using Canvas API.
Free
No account, no fee, no watermarks. Ever.
Batch Convert
Convert multiple BMPs to PNG in one go.
Lossless
PNG compression preserves every pixel exactly.
Mobile-Friendly
Works on any device — phone, tablet, desktop.
Frequently Asked Questions
Yes — completely free with no limits or watermarks. Convertlo runs entirely in your browser.
No. PNG is lossless, so every pixel is stored exactly as in the BMP. You get a smaller file with identical visual quality.
Typically 50–80% smaller than the original BMP. The exact savings depend on image content — images with large solid-colour areas compress especially well.
No. All conversion happens locally in your browser using the HTML5 Canvas API. Your files never leave your device.
Yes! Enable the "Batch convert" toggle and drop multiple BMP files. Each converts and downloads individually.