Convert PNG to BMP Online Free
Convert PNG to BMP for uncompressed, pixel-perfect output. Ideal for legacy systems and editing.
ToFormat — free online converter
Upload your files
Max file size: 30MB · Up to 20 files at once
Why ToFormat?
Lossless, Uncompressed
BMP stores image data without compression. Converting PNG to BMP gives you exact pixel data — perfect for applications that require raw bitmaps.
Universal Compatibility
BMP is one of the oldest and most widely supported formats. Runs on every OS, embedded device, and software since the 1990s.
Simple Editing
Many legacy and specialized editors work best with BMP. Convert PNG to BMP for direct manipulation without format headaches.
About the Formats
🖼️ What is PNG?
PNG (Portable Network Graphics) is a lossless raster format created in 1996. It supports full alpha transparency, 24‑bit color, and is widely used for web graphics, logos, and screenshots. PNG uses DEFLATE compression.
All PNG conversion tools →🖼️ What is BMP?
BMP (Bitmap) is a raster graphics format developed by Microsoft. It stores pixel data uncompressed (usually), resulting in large files but exact fidelity. It's the simplest format, supported everywhere.
All BMP conversion tools →How to Convert
Upload PNG
Drag and drop your PNG files. You can upload up to 20 at once.
Choose BMP options
Select bit depth (24-bit for photos, 8-bit for paletted graphics). Default is 24-bit true color.
Download BMP
Your BMP files are ready. Download individually or as ZIP. Files auto-delete in 10 minutes.
When to Convert PNG to BMP
💻 Legacy Software
Old programs, embedded systems, or custom hardware often require BMP. Convert PNG to BMP to ensure compatibility.
💡 For modern apps: try BMP to PNG →🎨 Pixel Art & Editing
Pixel artists and some editors prefer BMP for its simplicity and exact pixel control. No compression artifacts.
💡 Vector alternative: PNG to SVG →🔧 Reverse Engineering
BMP is easy to parse. If you're analyzing image data or writing low-level code, BMP is the safest intermediate.
💡 Raw format: PNG to DNG →📂 Archiving Simple Graphics
For icons, logos, or UI elements where file size doesn't matter, BMP offers a future-proof, simple format.
💡 Lossless alternative: PNG to TIFF →Format Comparison
| Format | PNG | BMP |
|---|---|---|
| Compression | Lossless | Lossless |
| Transparency | Yes | No |
| File Size | Larger | Larger |
BMP files are huge — often 5-10x larger than PNG. Only use when necessary. For general use, PNG to JPG offers smaller files. For lossless compression, PNG to WebP is modern.
💡 Pro Tips
- BMP supports different bit depths: 1, 4, 8, 16, 24, 32-bit. Choose 24-bit for photos, 8-bit for simple graphics (smaller).
- If your PNG has transparency, use 32-bit BMP with alpha channel (not all software reads it).
- BMP can store color profiles (ICCP) — we preserve them if present in your PNG.
- For maximum compatibility with very old systems, use 24-bit BMP (no compression, no alpha).
- Converting animated PNG (APNG) to BMP will produce only the first frame. For animations, use PNG to GIF.
- BMP is uncompressed by default, but there is RLE compression (rarely used). We offer uncompressed for reliability.
How PNG to BMP Conversion Works
PNG uses lossless compression (DEFLATE) and supports transparency via an alpha channel. BMP, in its simplest form, is a header followed by raw pixel data (BGR or RGB). When you convert PNG to BMP, our servers fully decode the PNG to raw pixels, then write a BMP header and the pixel data with your chosen bit depth.
The process is lossless — the pixel values are preserved exactly. If your PNG has transparency, we store it in the alpha channel of a 32-bit BMP (if selected).
Files are processed in memory and permanently deleted after 10 minutes.
PNG vs BMP: When to Use Each
PNG is for modern web delivery: small file size, lossless compression, transparency. BMP is for compatibility and simplicity: huge files, but works everywhere.
Think of BMP as the "lowest common denominator" — if a system can display images at all, it can display BMP. That's why it's still used in embedded devices, bootloaders, and legacy apps.
BMP Variants and Compatibility
Over the years, many BMP variants appeared: OS/2 BMP, Windows BMP with different compression. Our converter outputs standard Windows BMP (BITMAPINFOHEADER) with uncompressed data, which is compatible with virtually all software.
Explore other BMP tools for more options.