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CLI Open source 68 installs/mo

fltk for Mac

Cross-platform C++ GUI toolkit

Quick answer: fltk is a command-line tool for macOS. Install it with brew install fltk. It is distributed under the LGPL-2.0-only WITH FLTK-exception licence. It has 68 Homebrew installs in the last 30 days.

What fltk is

fltk is a command-line tool for macOS: cross-platform C++ GUI toolkit.

It is distributed as a Homebrew formula, which builds or pours a binary and puts it on your PATH. It is distributed under the LGPL-2.0-only WITH FLTK-exception licence.

How to install fltk

  1. Open Terminal (press ⌘ + Space and type “Terminal”).
  2. If Homebrew is not installed yet, run the installer below once.
  3. Run brew install fltk.

Homebrew installer, if you need it:

Prefer a graphical installer? Download it from the official site. MacPicks never hosts or mirrors binaries — the Homebrew command always pulls from the vendor's own release.

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Frequently asked questions

How do I install fltk on Mac?

Run brew install fltk in Terminal. This requires Homebrew; if you do not have it, install it first with the command below.

Is fltk open source?

Yes — Homebrew distributes it under the LGPL-2.0-only WITH FLTK-exception licence.

Does fltk run on Apple silicon?

Homebrew publishes this formula for macOS. If upstream does not ship an Apple silicon build, Rosetta 2 handles the Intel binary.

How popular is fltk?

It was installed 68 times in the last 30 days according to Homebrew analytics, ranking #4057 in this catalogue.

What version of fltk is current?

The latest packaged version is 1.4.5.