Google Fonts
fonts.google.com
Open-licensed font families, free for commercial work and self-hostable
No sign-upClassic
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fontsquirrel.com
Free fonts hand-checked for a genuinely commercial licence.
Every font here has been vetted to confirm it is actually free for commercial use, which is exactly the thing a random 'free fonts' download site never guarantees. It also runs a Webfont Generator that converts a licensed desktop font into web formats, and a Matcherator for identifying type from an image. The catalogue is smaller and more conservative than the free-for-all sites, deliberately.
AltFTool does this too
If you would rather not leave the site, Font Licence Checker Guide covers the same job here — free, no account, and it runs in your browser.
Open Font Licence Checker GuideQuestions
Works the moment the page loads. No account, no email, no trial. The catalogue is small by modern standards and the site has barely changed in a decade.
Yes. Font Squirrel sends your input to its own servers to process it. That is fine for public material; for anything containing personal data, use one of the on-device tools instead.
The catalogue is small by modern standards and the site has barely changed in a decade.
Alternatives
Same category or same task, ordered by how closely they overlap.
fonts.google.com
Open-licensed font families, free for commercial work and self-hostable
fontjoy.com
Suggests heading and body font pairings, and locks the one you like
myfonts.com
Identifies a font from a photo or screenshot of a few letters
cssgradient.io
Builds a linear or radial gradient and hands you the CSS to paste
fontawesome.com
A large icon set with a free tier you can ship without attribution
realtimecolors.com
Previews a palette on a real page layout instead of five swatches