fontformater

Fontformater is a software toolkit designed to streamline the preparation and deployment of font files across digital and print environments. It provides utilities for converting between common font formats, subsetting glyph sets, editing metrics, and injecting metadata.

Core features include format conversion (TrueType, OpenType, WOFF, WOFF2), subsetting to reduce file size while preserving essential glyphs, adjusting hinting and vertical metrics, and metadata editing for license, vendor, and font-family information. It can export web-friendly font sets with CSS font-face declarations and supports generation of variable font axes for variable fonts.

Architecture and workflow: fontformater comprises a core engine, parsers for multiple formats, an exporter module, and a scripting API. It supports both a command-line interface for batch processing and a library API for integration into build pipelines, and is designed to be extended via plugins.

Applications and interoperability: used by type foundries, publishers, and developers to optimize font delivery for websites and apps, ensure consistent metrics across platforms, and automate font provisioning in CI/CD pipelines. It adheres to industry standards for OpenType and web fonts and cooperates with tools like font editors and font-serving systems.

History and licensing: The project originated as an open-source initiative to standardize font formatting workflows and is maintained by a community of typography engineers. It is released under an open-source license, and its source code and documentation are publicly available.