the internet after cookies
Personalization and targeting that stay on your device, fully under your control.
Memento is
A secure portable profile
Memento replaces third-party cookies with an encrypted, portable profile stored entirely on your device. Your information stays private, by design.
A cookie-proof ad platform
Memento pre-downloads ads and selects the right ones on-device. No auctions, no tracking, just relevance and verified data points.
A privacy-first personalization engine
Use your local profile to personalize content, feeds, and recommendations instantly—without ever giving up control of your data.
Fast, simple integration
Memento is a lightweight script (<2 KB). Publishers can integrate in 15 minutes to unlock cookie-free personalization and new revenue.
Users in control, publishers in profit
By design, Memento keeps data on-device while giving publishers and advertisers verified signals that drive higher CTR and ROAS.
News
05.2025
User First Advertising
Memento Beta delivers the first ad campaign selected entirely on-device, using secure user profiles—100% cookie-free.
12.2024
Memento Empowers 2 Million Users !
Memento surpasses 2 million decentralized profiles, powering higher engagement and ad relevance across early adopter publishers.
03.2024
USPTO Accepts Memento Patent
USPTO accepts non-provisional patent application: Systems and Methods for Client-side Content Personalization with Privacy Protection.