GNU + Linux Installation Guide

You’ll need Python 3.6 (or newer) to run FontBakery. Install with your GNU+Linux package manager or from


pip install fontbakery


pip install --upgrade fontbakery

Additional Dependencies

The following are optional dependencies that you can install to extend the functionality of Font Bakery. Please note that some tests will not be executed if these optional dependencies are not present on your system.

Microsoft Font Validator

Font Validator has useful tests for a font’s glyf table. We use Hintak’s fork.

  • download the latest release for your OS.

  • unzip it

  • Change the unzipped binary’s permissions, chmod 755 FontValidator

  • Move the binary to your bin folder, mv /path/to/unzipped/FontValidator /usr/local/bin/FontValidator

Remote ftxvalidator

The script available at prebuilt/workarounds/ftxvalidator/ssh-implementation/ftxvalidator lets you execute the macOS tool ftxvalidator on a remote host. It is designed as a drop-in replacement to be put in your /usr/local/bin directory.

In order to use it you must also add your client’s ssh public key to .ssh/authorized_keys on the remote machine.