Convert BMP to PNG Online
Convert BMP to PNG instantly — Бесплатно, 100% Приватно, no upload to servers.
Что такое BMP → PNG?
A BMP to PNG converter transforms uncompressed Bitmap images into lossless PNG format, typically reducing file size by 50–80% without any quality loss. Unlike BMP to JPG conversion (which is lossy), BMP to PNG is completely lossless — every pixel is preserved exactly while the file becomes dramatically smaller through PNG's deflate compression algorithm.
Зачем конвертировать BMP → PNG?
If you need to preserve exact pixel data from BMP images (critical for screenshots, technical diagrams, or medical imaging), PNG is the ideal target format. It offers lossless compression that can reduce BMP file sizes by 50–80% depending on image content. Images with large areas of solid color compress particularly well. PNG also adds transparency support that BMP may or may not have, and is universally supported across all platforms and software.
Лучше всего подходит для:
- Screenshots from legacy Windows applications
- Technical diagrams and schematics saved as BMP
- Medical or scientific images requiring lossless conversion
- Any BMP where exact pixel accuracy is important
Технические детали
This conversion is mathematically lossless. Every pixel in the original BMP is preserved exactly in the PNG output. PNG's compression works best on images with repeating patterns and solid colors — a screenshot may compress by 80%, while a noisy photograph may only compress by 30%. For photographs where file size is the priority, convert to JPG instead.
How to Convert BMP to PNG in 3 Steps
Upload Your BMP File
Drag and drop your BMP image into the converter above, or click to browse. You can select multiple files for batch conversion.
Convert Instantly
Click the convert button and TweakFiles will instantly transform your BMP file to PNG format — right in your browser, with no upload to any server.
Download Your PNG File
Click download to save the converted file. For multiple files, use the "Download All" button to get everything at once.
TweakFiles vs Other BMP to PNG Converters
| Feature | TweakFiles | Convertio | CloudConvert |
|---|---|---|---|
| Price | Free forever | Freemium ($10/mo) | Freemium ($8/mo) |
| File Privacy | 100% client-side | Uploaded to servers | Uploaded to servers |
| Signup Required | No | After 10 files | After 25 files |
| Batch Conversion | Unlimited | 2 files (free) | 5 files (free) |
| Speed | Instant (no upload) | Depends on internet | Depends on internet |