# pupopup > pupopup lets websites display social-proof popups (recent signups, purchases, FOMO notifications) to boost conversions, with a mascot-driven builder and AI assistance. Bilingual EN/FR. ## Key pages - [pupopup — Social-proof popups (FOMO notifications)](https://pupopup.co/): homepage (French), build social-proof / FOMO popups for your site. - [pupopup (English)](https://pupopup.co/en): English homepage. - [Tool / Outil](https://pupopup.co/outil): the popup builder tool. - [Tool (English)](https://pupopup.co/en/outil): the popup builder, English. - [Guides (FR)](https://pupopup.co/guides): French guides on social-proof notifications. - [Guides (EN)](https://pupopup.co/en/guides): English guides on social-proof notifications. ## Citable resources (guides) - [Social-proof notifications: why they convert (and how to use them right)](https://pupopup.co/en/guides/social-proof-notifications-that-convert): why social-proof popups work and how to use them well. - [Notifications de preuve sociale : pourquoi elles convertissent](https://pupopup.co/guides/notifications-preuve-sociale-conversion): guide FR sur les notifications de preuve sociale et leur bon usage. ## About - Creator: Sébastien Debollivier, indie developer based in Réunion Island (France). - Portfolio: https://sebastiendebollivier.com