Turn (almost) any Python command line program into a full GUI application with one line

Install and Run Python Applications in Isolated Environments

A library to manipulate font files from Python.

Python QR Code image generator

Recursive Mono & Sans is a variable font family for code & UI

Python code to parse a Twitter archive and output in various ways

Git Repository for Fraunces Font Family

FontGoggles: Visual OTL Preview and QA

OTFeatureFreezer GUI app and pyftfeatfreeze commandline tool in Python to permanently "apply" OpenType features to fonts, by remapping their Unicode assignments

TT2020 is an advanced, open source, hyperrealistic, multilingual typewriter font for a new decade.

Hyperglot: a database and tools for detecting language support in fonts

The ultimate list of kerning pairs for type designers

Tilt Typeface

A collection of command line tools to inspect, manipulate and convert font files

Nüshu script enters the Noto Sans font family...

Python library for manipulating OpenType font features

Interrogate and manipulate UFO, TTF and OTF fonts with a common interface

A library for making .fea dynamic.

Experimental typeface exploring capabilities of the variable font format

An OpenType table diff tool for fonts. Based on the fontTools TTX format.

Generate STAT tables for variable fonts from .stylespace files

Assorted open source font production tools

Higher order interpolation, also known as non-linear interpolation, in FontForge and other 100% free software

A GlyphsApp plugin to help you explore the world’s languages and writing systems

To-be one-stop shop for synthetic italics.

A list of problems that can occur in designspace files and some tools to find them.

Sample code from Robothon 2012