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Font converter
Font formats differ mainly in how they are packed rather than in what they contain. The one conversion most people need is into WOFF2, which is what a browser wants and what makes a web page load faster.
Up to 100 files at once. Mixed formats are fine.
They convert one after another and download together as a ZIP.
Most used font conversions
Every font format we handle
5 formats in this category, 10 working conversions — 0 of them without your file leaving the device.
- WOFFWOFF
A font packed for the web. Superseded by WOFF2 but still needed for old browsers.
- WOFF2WOFF2
The current web font format, around 30% smaller than WOFF.
- TTFTTF
The desktop font standard. Installs on any operating system.
- OTFOTF
TrueType with typographic extras — ligatures, alternates, proper small caps.
WOFF2 is the one that matters for the web
WOFF2 is the same outlines as a TTF or OTF with substantially better compression built for exactly this purpose — typically thirty to fifty per cent smaller than the original. Every browser in current use supports it, so serving anything else on a web page is spending a visitor’s bandwidth for no benefit.
TTF and OTF remain what you install on a computer and what design software expects. Converting between those two is largely a repackaging: the difference is in how the glyph outlines are described, and both work everywhere a desktop font works.
A licence is not a technical question
Converting a font does not change what you are permitted to do with it. Many typefaces are licensed for desktop use only, and putting one on a website is a separate licence that the conversion does not grant. Open-source families are the exception and are usually distributed in web formats already.
This is worth a sentence because the conversion is trivial and the licensing is not, and a tool that quietly makes the first easy should at least mention the second.
Font converter: common questions
Which format should I use on a website?
WOFF2, and only WOFF2. Every browser in current use supports it and it is typically thirty to fifty per cent smaller than the TTF it came from.
Does converting change how the font looks?
No. The outlines are the same; only the packaging changes. Hinting and other metadata carry across where the target format supports them.
Am I allowed to use a converted font on my website?
That depends on the font’s licence, not on the conversion. Many typefaces are licensed for desktop use only and need a separate web licence. Converting the file does not grant one.
Is my font uploaded?
No. The conversion runs in your browser, so a commercial typeface you have licensed does not get handed to a third party as a side effect of changing its file format.