Seen – Virtual list rendering with 1M+ notes

In plain words

Seen is a note-taking app that demonstrates virtual list rendering to handle over one million notes in a masonry layout while minimizing CPU and memory usage. It includes client-side search and basic note creation, editing, and deletion capabilities. The application is in early preview stage, with the developer acknowledging current performance limitations and planning improvements.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Edit: Thank you so much for taking a look at Seen! Yes, I know, it's really slow. And scrolling does not render notes instantly. And the title is a bit clickbait-y. I'll try my best to improve on it though. This is just a preview, the most basic version of Seen, and it's getting there. But, oh God, I almost got a…

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