> -prefix-free is a JavaScript library by Lea Verou that adds CSS vendor prefixes in the browser: what it does on your site and why it has no cookie impact.
>
> Canonical: https://www.flowconsent.com/en/services/framework/prefix-free

Frameworks

# -prefix-free

Unclassified · [Official website](https://leaverou.github.io/prefixfree/)

-prefix-free is an open source JavaScript library created by Lea Verou that lets developers write standard CSS without vendor prefixes. Running in the visitor's browser, it adds only the prefixes that browser needs. It is a small front-end script usually hosted with the site, sets no cookies and does not send visitor data anywhere by itself.

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Compliance

## -prefix-free and the GDPR

-prefix-free is classified as “Unclassified”. On a site that targets European visitors, it must only load after the visitor consents, and it must be listed in your cookie policy.

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