BDF to GZ Converter
Processing entirely on your device — large files may take a moment.
Glyph Bitmap Distribution Format and Gzip Compressed File 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. Unpack a .gz into a normal file or repack it as ZIP/TAR when the receiving tool does not understand gzip.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How to convert BDF to GZ
- 1
Select your files
Select your BDF file.
- 2
Convert instantly
The file bytes are gzip-compressed in place — the same archive your server or build tool produces, made locally.
- 3
Download results
Download the .gz file — ready to upload, serve or attach.
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 GZ format
A .gz file is one file squeezed by gzip — not an archive. kernel.org tarballs are “tar inside gz”, but plenty of logs, JSON dumps and CSV exports travel as plain .gz. Opening one means decompressing it back to the original bytes.
Repacking into ZIP or TAR gives the decompressed file a container that every GUI tool opens without a second thought.
+Strengths
- ✓Everywhere on Linux and macOS
- ✓Fast, well-understood compression
- ✓Streams natively from any tool
!Limitations
- −Single file only — no directory tree
- −No encryption or integrity metadata
Why convert BDF to GZ?
Think of it as moving your file to the container that fits the job. Bitmaps only — no hinting or outlines GZ works differently: Everywhere on Linux and macOS 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 GZ 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.
Is there a file size limit for BDF to GZ?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
What about folders and directory structure?
The full directory tree is preserved: folders stay folders, and deep paths arrive exactly as they were packed in the BDF file.
Are the files inside my BDF archive modified?
No. Contents are unpacked in memory and repacked into GZ byte-for-byte — the conversion changes the container, never the files inside it.