KeyFont
KeyFont is a client-side font conversion and inspection utility running entirely within the web browser. It allows developers and designers to view, test, and convert font files between multiple formats such as TTF, OTF, WOFF, WOFF2, CFF, PFA, PFB, and SVG. Because all processing executes locally via browser APIs, uploaded files do not leave the user's device, ensuring privacy and eliminating server-side transfer latency when handling local typography assets.
Checked on Nov 2, 2026.
Alternative resources
A free and open source web-based font editor designed for hobbyists and typeface design beginners to create and export custom fonts.
Convert SVG and PNG icons into WOFF2 icon fonts locally in your browser. Private by design with optional CDN publishing.
A suite of browser-based font utilities including format conversion, @font-face generation, unit calculators, and a cloud-based font manager.