Font Converter
Convert fonts between TTF, OTF, and WOFF (WOFF2 accepted as input) with custom-text preview before downloading. Ship web-ready WOFF in one pass — local opentype.js work, unlimited saves.
Runs on opentype.js
How to Use the Font Converter
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Frequently Asked Questions
Which output format should I choose?
WOFF for websites; TTF/OTF for desktop installs. WOFF is the only web output here — convert the WOFF onward elsewhere if you need WOFF2.
How does the preview work?
Type any custom text to render the uploaded font instantly — pangrams like 'Sphinx of black quartz' expose weak glyphs before converting. Preview is unlimited and local.
Will conversion keep font quality?
Outlines transfer exactly; hinting may simplify slightly at tiny sizes. Test converted body text at 14px next to the original before shipping.
Do source fonts leave the browser?
No — conversion runs locally in your browser with opentype.js. Free-tool saves are unlimited; caps apply only to Pro tools (2 saves a day signed-in). Check your license allows format conversion first.
Related Design Tools
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Subset TTF/OTF fonts to used characters and export TTF or WOFF — cut webfont weight by 90%. Ship 12 KB instead of 150 KB — local opentype.js work, unlimited saves.
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Last updated October 2026