WorldBrain/Memex
Some data may be outdated — see provenance labels.
Browser extension to curate, annotate, and discuss the most valuable content and ideas on the web. As individuals, teams and communities. observed · 2026-10-03
Health v2 · maintenance only
44/100
- Activity 47
- Release rhythm 8
- Longevity 100
Flags: no_license no_readme
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3489
- days_rel: n/a
- days_push: 323
- n_releases_24m: 0
Adoption not part of the score
4722 stars · 355 forks observed · 2026-10-03
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
Memex is a browser extension (Chrome/Firefox) for curating, annotating, highlighting, tagging, and full-text searching web content and PDFs, with encrypted sync and mobile companion apps. It also exposes an MCP server so AI agents can search and act on a user's saved knowledge base.
Use cases
- full-text search across all pages I've visited and bookmarked
- highlight and annotate web pages and PDFs
- organize research with tags, lists, and bookmarks
- sync my web research across desktop and mobile with encryption
- let my AI assistant search my saved web research via MCP
- summarize and ask questions about pages, videos, and PDFs I saved
- import and auto-tag content from YouTube, RSS, and Reddit channels
When to choose
- you need searchable, annotated archives of everything you read online
- you want a privacy-focused, self-funded alternative to VC-backed bookmarking tools
- you want your personal knowledge base accessible to AI agents via MCP
- you research across websites, PDFs, and videos and need highlights plus notes in one place
When to avoid
- you only need simple bookmark syncing built into your browser
- you need a team wiki rather than personal web research curation
- you require a formally licensed open-source build - the repo currently lists no license
Facets
plugin · maturity active
search-engine nlp mcp chatbot developer-tools browser-extensions developer-tools privacy browser-extension browser cross-platform web-extension annotations full-text-search note-taking bookmarks second-brain knowledge-management typescript encrypted-sync mcp-server research natural-language-processing android ios
2 sources
- readme: https://github.com/WorldBrain/Memex · fetched 2026-10-03 · 0659f41ee50c
- homepage: https://worldbrain.io · fetched 2026-08-29 · 5804477b0c05
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| WorldBrain/Memex | main | 44 |
For agents
markdown · JSON · MCP: product_card(name="WorldBrain/Memex")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem