WOFF2 Converter: TTF to WOFF2 and Back
TTF↔WOFF2 both directions: direction follows the bytes, whole fonts only (no subsetting), signature-checked before the wasm runs.
Direction follows the bytes: a TTF/OTF compresses to WOFF2 (brotli inside), a WOFF2 expands back to TTF. WOFF 1.0 (flavor "wOFF") is refused. Only the 2.0 decoder ships here. Subsetting is not offered: the wasm converts whole fonts, and dropping glyphs silently is not this tool's style.