Klaro!

Klaro! is a consent management platform (CMP) and privacy tool for websites. It is transparent about the third-party applications on a site and collects user consent in a way that supports GDPR and ePrivacy compliance.

It can ask for consent in multiple modes and show third-party apps individually or grouped by purpose. You add it with a small JavaScript snippet and a config file, and it manages scripts, images, and stylesheets so they only run after consent, even if JavaScript is disabled or Klaro itself is blocked. A JavaScript API lets you read and control consent from your own code.

Klaro! is free and open source under the BSD-3 license, with full internationalization and a minified, gzipped bundle of about 57 kB. It can be self-hosted from the compiled files or installed via npm, including builds with or without CSS.