Will I lose any quality converting BMP to PNG?

No. Both formats are lossless, so the PNG is pixel-for-pixel identical to the source BMP, just stored far more efficiently. You get the exact same image quality in a fraction of the disk space.

How much smaller is PNG compared to BMP?

Often 50-80% smaller, since BMP stores every pixel uncompressed while PNG applies lossless compression on top. The saving is largest on screenshots, diagrams and flat-colour graphics, where PNG compresses very efficiently.

When is PNG the right choice over JPG for a BMP?

Choose PNG for screenshots, line art, diagrams and anything with text or sharp edges, where lossless quality matters. JPG suits photographic BMP content where a smaller lossy file is more important than pixel-perfect edges.

Does the PNG keep transparency if the BMP has it?

Yes. If the BMP contains an alpha channel, PNG preserves it exactly through its own full alpha support. Most BMP files are opaque, in which case the PNG is simply a smaller, identical image.

Why is a BMP so much larger than a PNG?

BMP stores every pixel as raw uncompressed data, so file size grows directly with resolution. PNG adds lossless compression that finds and packs repeated patterns, which shrinks the file without changing a single pixel.

Where do BMP files typically come from?

Old Windows applications, scanners and legacy image exports often produce uncompressed BMP. PNG is the modern lossless replacement, so converting keeps the exact quality while making the file easy to store and share.

Can I convert several BMP files to PNG at once?

Yes. Add a whole batch of BMP files and each becomes its own lossless PNG in a single pass, with nothing merged and no limit on the number of files.

Convert BMP to PNG Online

Convert an uncompressed BMP to lossless PNG — much smaller file, identical pixel-perfect quality.

or drag & drop them here · images, video, audio and documents · up to 2 GB

How to convert BMP to PNG

Click "Choose Files" and select your BMP file, or drag & drop it onto the page.
Make sure PNG is selected as the target format.
Click "Convert" and wait a few seconds.
Download your new PNG file.

Why Converters.live?

Free and unlimited — convert as many BMP images to PNG as you need, one by one or in bulk.
Files up to 2 GB, with resolution and color quality preserved when converting BMP to PNG.
Your photos are deleted from the server immediately after conversion — nothing is stored.

Frequently asked questions

Will I lose any quality converting BMP to PNG?: No. Both formats are lossless, so the PNG is pixel-for-pixel identical to the source BMP, just stored far more efficiently. You get the exact same image quality in a fraction of the disk space.
How much smaller is PNG compared to BMP?: Often 50-80% smaller, since BMP stores every pixel uncompressed while PNG applies lossless compression on top. The saving is largest on screenshots, diagrams and flat-colour graphics, where PNG compresses very efficiently.
When is PNG the right choice over JPG for a BMP?: Choose PNG for screenshots, line art, diagrams and anything with text or sharp edges, where lossless quality matters. JPG suits photographic BMP content where a smaller lossy file is more important than pixel-perfect edges.
Does the PNG keep transparency if the BMP has it?: Yes. If the BMP contains an alpha channel, PNG preserves it exactly through its own full alpha support. Most BMP files are opaque, in which case the PNG is simply a smaller, identical image.
Why is a BMP so much larger than a PNG?: BMP stores every pixel as raw uncompressed data, so file size grows directly with resolution. PNG adds lossless compression that finds and packs repeated patterns, which shrinks the file without changing a single pixel.
Where do BMP files typically come from?: Old Windows applications, scanners and legacy image exports often produce uncompressed BMP. PNG is the modern lossless replacement, so converting keeps the exact quality while making the file easy to store and share.
Can I convert several BMP files to PNG at once?: Yes. Add a whole batch of BMP files and each becomes its own lossless PNG in a single pass, with nothing merged and no limit on the number of files.

About BMP and PNG

Key things to know before you convert BMP to PNG:

BMP

BMP is an uncompressed legacy Windows bitmap. Huge files with no benefits today; kept around for old software compatibility.

PNG

PNG is the lossless standard for web graphics: screenshots, logos, UI elements and anything with transparency. Pixel-perfect every time, but photos in PNG are 3-10x larger than JPG.

Related conversions

HEIC→PNG JPG→PNG WEBP→PNG ICO→PNG SVG→PNG JPEG→PNG GIF→PNG BMP→JPG