MemKeeper.EU
on-device — 0 requests with your data

Your AI memory, in your hands

Every AI remembers things about you.
None of them show you what.

MemKeeper reads what ChatGPT, Claude and Gemini remember and shows you what each one knows that the others don't — entirely in your browser.

Try it now — no install

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Ask each AI: “List everything you remember about me as bullet points.” Paste the answers below. The diff updates as you type.

Only ChatGPT

3

Shared

1

Only Claude

2

Only CHATGPT knows

Prefers short, direct answers without filler

Building a touring platform for electronic music

Likes techno and runs a music archive since 1992

Only CLAUDE knows

prefers short direct answers

Working on an EU AI Act compliance observatory

Now do it with the full exports →ZIPs, conversation history, search, side-by-side.

How to get your exports

Every platform offers a data export under data protection law. MemKeeper reads them as-is — no scraping, no permissions, no plugin.

CHATGPT

ChatGPT

Settings → Data controls → Export data. Email arrives in a few minutes.

Request export ↗
CLAUDE

Claude

Settings → Privacy → Export data. Email arrives within a day.

Request export ↗
GEMINI

Gemini

takeout.google.com → My Activity → Gemini Apps. Pick JSON format.

Request export ↗

Why this works the way it does

  • Nothing uploaded. Verify it yourself: DevTools → Network while you type above.
  • No account. The vault lives in IndexedDB on this device.
  • Deterministic diff. Normalized text + difflib ratio. No embeddings, no LLM call.
  • Engine is open source. TypeScript port of AgentKeeper (MIT).