Memdex launches local AI memory extension

Strong idea, and the local-first angle is the right wedge: AI memory is only useful if it shows up exactly when you need it.

• –The Grammarly-style inline highlighting is a better UX than burying memory in a separate notes app or vector DB dashboard.
• –On-device encrypted storage is a real differentiator for privacy-sensitive users, but it also raises the bar for reliability because there’s no server-side intelligence to fall back on.
• –The product will live or die on precision: too many false positives and the context detection feels noisy, too few and it becomes invisible.
• –Broad support across ChatGPT, Claude, and Gemini makes it useful for people who bounce between models, which is exactly where memory fragmentation hurts most.