BDF to PNG Converter
Processing entirely on your device — large files may take a moment.
Glyph Bitmap Distribution Format and PNG Image exist for different jobs: BDF is the X11 bitmap font format: every glyph as an ASCII hex bitmap. It still powers terminal emulators, embedded UIs and retro-computing projects. Convert to PNG when you need lossless quality or a transparent background — for logos, UI screenshots and line art.
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 to convert BDF to PNG
- 1
Select your files
Drag & drop your BDF 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 PNG". The conversion runs entirely inside your browser using WebAssembly — no upload, no queue, no waiting.
- 3
Download results
Download each converted PNG file individually, or grab everything at once as a ZIP archive.
About the BDF format
BDF (Glyph Bitmap Distribution Format) is the X11 consortium's bitmap font format from 1987: every glyph is declared in ASCII as a width, a bounding box and rows of hex-encoded pixels. Terminals like xterm, embedded UI toolkits and retro-computing communities still build on it because it is the simplest font format that renders identically everywhere.
This converter renders every glyph onto a grid as a PNG sheet — the quickest way to preview a font, document an embedded display layout or check that a hand-edited bitmap is sane before flashing it to hardware.
+ Strengths
- ✓Pure ASCII — no parsing surprises
- ✓Pixel-exact rendering across devices
- ✓Still the standard for terminal/embedded fonts
! Limitations
- −Bitmaps only — no hinting or outlines
- −One file per pixel size
- −Fixed sizes look blocky when scaled
About the PNG 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
Why convert BDF to PNG?
Think of it as moving your file to the container that fits the job. Bitmaps only — no hinting or outlines PNG works differently: Truly lossless — every pixel survives exactly as it was If any of that sounds like your task, run the conversion — it takes seconds and nothing leaves your device.
Frequently asked questions
Is this BDF to PNG 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 BDF to PNG?
No — PNG is a lossless format, so every pixel of the converted image matches your original BDF file. You can also adjust the quality/size balance before converting when the target format supports compression.
Can I install the PNG file on my computer?
That depends on the target: desktop systems install TTF/OTF files directly, while PNG is a web container meant to be served with @font-face rather than installed. Keep the original for desktop use.
Do I still need the license for the converted font?
Yes. Converting a format does not change its license — the same foundry terms apply wherever the font is used, including the web.