PNG24 to BMP Converter
Processing entirely on your device — large files may take a moment.
Some legacy Windows programs, industrial devices and printers still require plain, uncompressed BMP files. If your files are still in PNG24 format, this page is the shortcut: PNG24 is the common name for 24-bit truecolor PNG — full RGB, no alpha channel (PNG32 adds alpha). It is what most people simply call PNG.
This converter runs entirely in your browser using WebAssembly — your files never leave your device, nothing is uploaded, and there are no watermarks, sign-ups or queues. Drop in several files at once to convert them as a batch.
How PNG24 compares to BMP
| PNG24 | BMP | |
|---|---|---|
| Compression | Lossless (DEFLATE) | Usually none (RLE optional) |
| Transparency | Full alpha (8/16-bit) | Rarely (V5 header only) |
| Animation | Only via APNG extension | Not supported |
| Metadata | tEXt chunks, ICC profile | Minimal |
| Best for | Screenshots, logos, sharp graphics | Legacy software and scanner output |
How to convert PNG24 to BMP
- 1
Select your files
Drag & drop your PNG24 files onto the area above, or click to browse. You can add multiple files at once for batch conversion.
- 2
Convert instantly
Click "Convert to BMP". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted BMP file individually, or grab everything at once as a ZIP archive.
About the PNG24 format
PNG was created in 1996 as a free, open replacement for the patent-encumbered GIF, and it has been the reference lossless image format ever since. Pixels are compressed with the DEFLATE algorithm (the same one inside ZIP files), which reproduces the original image exactly — bit-for-bit — while supporting full 8-bit or 16-bit alpha transparency. Screenshots, logos, icons, charts and anything with text or sharp edges should live in PNG.
Because it never discards information, PNG files of photographs are several times larger than JPG — that is the price of perfection. Modern PNG encoders add filters per scanline that make screenshots and flat-color graphics compress surprisingly well. PNG also became the base of APNG, the animation extension that browsers play natively.
+ Strengths
- ✓Truly lossless — every pixel survives exactly as it was
- ✓Full alpha transparency with smooth edges, not 1-bit masks
- ✓Open standard, unpatented, with excellent tooling everywhere
- ✓Ideal for text, line art and flat-color graphics — sharp edges stay sharp
! Limitations
- −Photographs become several times larger than JPG
- −Base format has no animation (that is the APNG extension)
- −16-bit or high-resolution PNGs can grow very heavy
About the BMP format
BMP is Windows' native bitmap format, dating to 1990. It stores pixels essentially raw — rows of BGR values padded to 4-byte boundaries — with optional RLE compression that almost nobody uses. That simplicity is its whole personality: any program written since the dawn of Windows can read one in a dozen lines of code, which is why scanners and ancient lab software still emit it.
The cost of that simplicity is size: an uncompressed BMP of a photo runs dozens of times larger than a JPG. There is no meaningful metadata standard, transparency only exists via the rarely-implemented V5 header, and no modern workflow needs it. Treat BMP as a legacy interchange format you convert away from.
+ Strengths
- ✓Zero compression artifacts — pixels stored as captured
- ✓Trivially easy to decode, even in ancient software
- ✓Universal inside the Windows world
! Limitations
- −Enormous files — dozens of times larger than JPG
- −No real metadata or color-management story
- −No role in modern web or print workflows
Why convert PNG24 to BMP?
Think of it as moving your file to the container that fits the job. Photographs become several times larger than JPG BMP works differently: Zero compression artifacts — pixels stored as captured If any of that sounds like your task, run the conversion — it takes seconds and nothing leaves your device.
Frequently asked questions
Is this PNG24 to BMP converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Will I lose quality converting PNG24 to BMP?
No — BMP is a lossless format, so every pixel of the converted image matches your original PNG24 file. You can also adjust the quality/size balance before converting when the target format supports compression.
Can I convert several PNG24 files at once?
Yes — drop as many files as you like into the tool and they are converted in one batch. When more than one file comes out, everything is bundled into a ZIP for a single download.
What happens to EXIF data and other metadata?
Conversions here re-encode the image, and re-encoding generally does not carry the original metadata over. If the EXIF data of your PNG24 files matters (camera model, GPS, timestamps), keep the original file as the master and treat the converted copy as the shareable version.