You generally do not need a specialized website or software to do this. Your computer already has the tools built-in.

  • report.json fields: original_filename, saved_filename, family, style, glyph_count, validation (ok/error), notes

    • A ZIP file is an archive file format that supports lossless data compression. Think of it as a digital suitcase. You can throw multiple files (fonts, documents, images) into one suitcase, zip it shut, and it becomes smaller and easier to carry (or upload/download).

  • Integration tests:
  • Fuzz testing: malformed zips and malformed font tables

    • Before we discuss conversion, we must understand the container. A ZIP file is an archive. Think of it like a digital suitcase. You cannot wear a suitcase; you have to unpack it to get the clothes inside.

    Font foundries use ZIP files for three main reasons:

    The critical takeaway: A ZIP file is not a font. It is a box containing one or more fonts.

    Convert compressed font files (ZIP, RAR, 7z) into ready-to-use TTF (TrueType Font) files. This tool automatically extracts font packages and provides clean, single-file TTF fonts for installation or design use.

    Solution: That is fine! OTF (OpenType Font) is often better than TTF. It supports more advanced typographic features (ligatures, swashes). If you need a TTF specifically, check if the ZIP contains both formats. If not, use an OTF to TTF converter (a real conversion tool) after extracting.

    You might have a ZIP file on your desktop right now named "Cool_Font_Collection.zip". When you double-click it, you see a .ttf file, but your computer refuses to install it because the file is still compressed. You need a converter (extractor) for three main reasons: