Return YouTube Dislike

Return YouTube Dislike is an open-source browser extension and API created by Dmitry Selivanov that restores the display of dislike counts on YouTube videos. Following the removal of public dislike counts by YouTube in late 2021, the extension reconstructs rating statistics using archived historical data and statistical extrapolation from active extension users. It operates under the GNU General Public License v3.0, restricting its network requests strictly to YouTube domains and its dedicated metrics backend.

Text from OyList