BMP to PNG Converter

Converted locally in your browser — files never leave your device.

Drop BMP files here or click to select

JPG, PNG, WebP, GIF, BMP, AVIF, TIFF — multiple files supported

How to convert BMP to PNG

  1. Drop your BMP files onto the converter above — or click to browse.
  2. Click Convert on a single file, or Convert all to process everything at once.
  3. Download individually or click Download all for a ZIP archive.
  4. Tip: BMP to PNG is completely lossless — every pixel is preserved exactly. Choose PNG for screenshots and graphics, JPG for photos.

Why convert BMP to PNG instead of JPG?

BMP is uncompressed — every pixel stored at full size with no compression. PNG applies lossless compression to the same data, typically achieving 70–95% size reduction with absolutely no quality loss. Unlike JPEG, no pixel data is discarded.

For screenshots, UI captures, diagrams, and graphics with text or sharp edges, PNG is far superior to JPG. JPEG introduces compression artifacts around edges and text. PNG preserves them perfectly.

BMP to PNG vs BMP to JPG — which to choose?

  • PNG: lossless, sharp text and edges, preserves transparency — ideal for screenshots and graphics
  • JPG: lossy, even smaller files, no transparency — better for photographic images
  • BMP screenshots convert to PNG with 70–90% size reduction and perfect quality
  • BMP photos can go to either PNG (lossless) or JPG (smaller)

Frequently Asked Questions

How do I convert BMP to PNG online for free?
Drop your BMP files onto the converter, click "Convert all", then "Download all". The conversion is completely lossless — every pixel is preserved. No upload or software needed.
Is there any quality loss when converting BMP to PNG?
No. Both BMP and PNG store image data losslessly. Converting BMP to PNG is a perfectly lossless operation — every pixel is preserved exactly as in the original.
How much smaller will the PNG be than the BMP?
Typically 70–95% smaller, depending on image content. A 6 MB screenshot BMP frequently becomes 200–600 KB as PNG. Simple images (solid colors, gradients) compress more than complex photographic detail.
Should I use PNG or JPG when converting from BMP?
Use PNG for screenshots, UI images, diagrams, logos, and anything with sharp text or edges — PNG is lossless and preserves sharpness perfectly. Use JPG for photographs where even smaller file sizes are acceptable at the cost of some quality.
Can I convert multiple files at once?
Yes. Drop as many files as you need in one go and click "Convert all" to process everything at once. When done, click "Download all" to get a single ZIP archive containing all converted files.
Are my files uploaded to a server?
No. All conversion happens directly in your browser using the Canvas API. Your files never leave your device — no uploads, no server processing, 100% private. This also means the tool works without an internet connection once the page has loaded.