100% Free
No Upload
Bulk Conversion
Bulk BMP to PNG Converter — Free, Unlimited
Convert multiple BMP files to PNG instantly — all in your browser. No file limits, no watermarks, and completely private.
BMP
PNG
·
ZIP
Bulk BMP → PNG Converter
Select files, convert, download ZIP — all locally
Drop BMP files here or click to browse
Supports batch selection — convert hundreds of files
BMP
→ PNG
ZIP
0 files
Converting
0 / 0
✓ Conversion completed!
All files converted successfully. Click Download ZIP to save them.
Why convert BMP to PNG?
BMP stores raw pixel data without compression. Converting to PNG applies lossless compression that reduces file size by 30–70% while perfectly preserving every pixel — ideal for graphics, screenshots, and icons.
Technical comparison: BMP vs PNG
How to use — 3 simple steps
1
Select your BMP files
Drag & drop or click to choose multiple BMP images. No file size restrictions.
2
Start the conversion
Click "Convert to :to" — your files are processed locally using Canvas API. No upload, no waiting.
3
Download ZIP archive
All converted PNG files are bundled into a single ZIP. One click, everything saved.
Popular use cases for BMP → PNG
Make your BMP images viewable on any device – convert to PNG
Stop dealing with 'unsupported format' errors – use PNG instead of BMP
Batch rename and convert your BMP collection to PNG for a unified library
Improve your website's Google PageSpeed score by serving PNG images
💡 Pro tips
- Use the ZIP download to get all converted files in a single click
- All processing is private — files are never uploaded to any server
Frequently Asked Questions
Renaming doesn't change the underlying data and will break the file. A real conversion re-encodes the pixel data into PNG's actual format.
Yes, the original BMP files on your device are never modified or deleted — only new PNG copies are created.
Most platforms handle PNG well, though some may re-compress images on upload regardless of source format.
Anyone managing many BMP files at once — photographers, developers, designers, and store owners are the most common users.