Convert TTF to WOFF

No. The conversion runs entirely in your browser. The file never leaves your device – there is no server that could see it. Once the page has loaded, the tool even works offline.

Nothing. WOFF is only a container: every table – outlines, hinting, kerning, OpenType features, names – is copied byte for byte and merely compressed or decompressed. No outline is redrawn and no feature is dropped.

WOFF compresses every table with zlib, typically 40–50 % smaller than TTF/OTF but about 30 % larger than WOFF2. Every current browser supports WOFF2, so use WOFF only when you must serve very old browsers.

Put the file next to your CSS and declare it with @font-face: src: url("font.woff") format("woff"). Our @font-face generator writes that rule for you, including weight, style and unicode-range.

No. The font remains the same work under the same licence, including the licence text stored in its name table. Whether you may use it on the web or on a desktop is decided by that licence, not by the file format.