Farben

Markup for the Terminal

What Is Farben

Farben is a terminal styling library for Rust that uses markup syntax. Color your terminal without typing whatever the heck \x1b[31m is.

use farben::prelude::*;

cprintln!("[bold red]Error:[/] something went wrong.");

Features

• Markup-like Syntax: Easy to read, easy to write.
• Zero Required Runtime Dependencies: Only path dependencies.
• Opt-in Compile-time Processing: Validate and process markup at compile time via the compile feature.
• 8 Color Formats: Named, ANSI256, RGB, HSL, HSV/HSB, HWB, Lab, LCH, OKLCh, hex.
• 11 Emphasis Styles: Bold, dim, italic, underline, double-underline, blink, rapid-blink, reverse, invisible, strikethrough, overline.
• Inline Syntax: *bold*, /italic/, `code`, ~strikethrough~, _underline_ via the inline feature.
• Bleed Variants: Skip trailing reset for chained output.
• User-defined Styles: style!() and prefix!() for custom tags.
• anstyle Interop: Convert to/from anstyle::Style.

Documentation

• User Guide: https://razkar-studio.github.io/farben
• API Reference: https://docs.rs/farben
• Changelog: CHANGELOG.md or on the guide site

License

This workspace contains crates under different licenses.

Public API crate (farben)

The main Farben crate is licensed under the Mozilla Public License 2.0.

In short:

• You may use this crate commercially and privately.
• You may modify and redistribute it.
• If you modify MPL-covered source files and distribute them, those modified files must remain available under MPL-2.0.
• Your larger project does not need to be open source.

Internal crates

All farben-* internal crates are licensed under either of

• Apache License, Version 2.0
• MIT license

at your option.

In short:

• You may use, modify, redistribute, and sublicense them freely.
• They may be used in open-source or proprietary projects.
• Apache-2.0 additionally provides explicit patent protections.

See the corresponding LICENSE-* files for details.

Cheers, RazkarStudio.

Copyright (c) 2026 RazkarStudio. All rights reserved.