Local Browsing History Extension

Provides local-first automatic history saving for platforms like X that lack it

Problem

X has no browsing history, so once users forget to bookmark a post, it is nearly impossible to find again; they end up searching from memory.

Solution

A browser extension that automatically saves posts users view locally, supports search by keyword, author, and time, lets users record only clicked items, keeps all data on-device, and is fully open source with no telemetry.

Users

Heavy users of X and similar platforms who collect information: researchers, content creators, and knowledge workers

MVP

Support Chrome and Edge; auto-record viewed posts in the timeline; store locally in SQLite or IndexedDB; search by keyword, author, and date; record only clicked items; export to JSON or Markdown

Revenue

Free and open source, with donations or a paid tier for encrypted cross-device sync, bulk export, and AI summaries

Why now

Social platforms are weakening browsing history, users care more about data ownership, and local-first open-source tools gain traction in communities like V2EX