libsixel mit Homebrew installieren

Projektlinks

• Homepage

Befehle und Aliase

• img2sixel
• libsixel-config
• sixel2png

Projektgeschichte

The project traces back to Hayaki Saito's libsixel work, described as an implementation derived from kmiya's sixel encoder. Its README explains SIXEL as a Digital Equipment Corporation format for printer and terminal imaging whose data is represented as terminal-friendly escape sequences.

A community fork under the libsixel GitHub organization continued the project after Saito stopped participating publicly in January 2020, according to the fork README. That fork collected improvements and security patches, later switching the build system to Meson for libsixel 2.0.

Adoptionsgeschichte

libsixel rode a broader revival of terminal graphics. The README lists use in or integration with projects and workflows around gnuplot, Ghostscript, ImageMagick, lsix, FFmpeg-SIXEL, SDL experiments, w3m integration, GNU Screen forks, RetroArch, and terminal support in xterm, mlterm, iTerm2, WezTerm, and related emulators.

The README also lists packaging through FreeBSD ports, pkgsrc, Homebrew, Debian, Arch, Gentoo, Ubuntu, NixOS, OpenBSD Ports, Fedora Copr, SlackBuilds, and MacPorts, which made it a common optional dependency for software that wants SIXEL output.

Wie es verwendet wird

Users most often meet libsixel through `img2sixel`, which converts images and animations into SIXEL escape sequences for display in a compatible terminal, and `sixel2png`, which decodes SIXEL back into PNG. Developers can use the C API and several language bindings to generate or decode SIXEL programmatically.

The practical constraint is terminal support: when the terminal understands SIXEL, the output renders inline; when it does not, users see escape data or nothing useful.

Warum Paket-Nerds sich dafür interessieren

libsixel is a package-nerd favorite because it compresses a lot of terminal history into one dependency: DEC hardware, escape sequences, image quantization, terminal emulator feature flags, and modern CLI image previews all meet in a small C library.

It also shows how optional media support propagates through package managers. A plotting tool, terminal browser, or file manager may grow SIXEL support only when a distro or formula enables the right build option and ships libsixel.

Zeitleiste

• 1980s: DEC introduced SIXEL for printer and terminal imaging.
• 2020-01: The community fork README records Saito's disappearance from public maintenance activity.
• 2025-01-11: The libsixel organization release page records v1.10.5.
• 2025-02-12: The libsixel organization repository was archived as read-only.

Related projects

• Related projects include the original saitoha/libsixel repository, kmiya's sixel encoder, mlterm, xterm, iTerm2, gnuplot, ImageMagick, Ghostscript, lsix, FFmpeg-SIXEL, and other terminal graphics protocols such as kitty graphics.

Quellen

• https://github.com/libsixel/libsixel
• https://github.com/libsixel/libsixel/blob/master/README.md
• https://github.com/libsixel/libsixel/releases
• https://github.com/saitoha/libsixel