Find anything you've ever asked an AI.
Memex indexes, organises and searches your own ChatGPT, Claude, Perplexity and Gemini conversations — right inside your browser. One searchable library for everything you've ever asked.
Coming soon to the Chrome Web Store and Firefox Add-ons.
Your AI chats, finally organised
Every conversation across every AI becomes a searchable, taggable knowledge base — instead of an endless, un-findable sidebar.
Search every chat
Natural-language search across all your past conversations on every supported AI. Find that answer from three weeks ago in seconds.
Ask Memex
Ask a question and get an answer drawn from across your own chat history. Your past conversations become a personal knowledge base.
Organise into groups
Tag, favourite and file conversations into groups and nested sub-groups.
AI summaries
One click turns a long thread into the key points — recall it without re-reading.
Smart sorting
Auto-group a messy history by topic and workflow into a tidy library.
Prompts & chains
Save your best prompts and multi-step chains, reusable across any AI.
How it works
Install & pin
Add Memex to your browser. It quietly attaches to ChatGPT, Claude, Perplexity and Gemini — no account juggling.
Let it index
Open your AIs as usual. Memex indexes your conversations locally and keeps your library in sync.
Search & recall
Search, summarise, group and ask questions across everything you've ever discussed with an AI.
Start free. Upgrade when it clicks.
Every plan keeps your conversations on your device. Paid tiers unlock bigger libraries and more daily AI actions.
- 15 conversations indexed per AI
- 5 AI summaries & 5 Ask Memex (one-time)
- 1 smart re-sort
- Tags, favourites & groups
- 50 conversations indexed per AI
- 10 summaries & 10 Ask Memex / day
- 2 smart re-sorts / day
- Nested sub-groups
- 100 conversations indexed per AI
- 30 summaries & 20 Ask Memex / day
- 5 smart re-sorts / day
- Unlimited prompts, tags, favourites & groups
- Unlimited conversations indexed
- 100 summaries & 50 Ask Memex / day
- 20 smart re-sorts / day
- Everything unlimited
Frequently asked
Where are my conversations stored?
Your indexed chats stay on your device. Memex is built so that only you can search your own history — it's your private AI memory, not a shared cloud archive.
Which AIs does Memex work with?
ChatGPT, Claude, Perplexity and Gemini today, with more on the way. You search across all of them from one place, or filter to a single AI.
Do I need a separate account for each AI?
No. Memex attaches to the AIs you already use in your browser and indexes what you open — no extra logins to manage.
Can I cancel anytime?
Yes. Cancel from inside the extension and access continues to the end of your billing period with no further charge.
Stop losing your best AI answers.
Install Memex and turn every chat into something you can actually find again.
Coming soon to the Chrome Web Store and Firefox Add-ons.
Paid plans are billed monthly through Stripe and renew automatically until cancelled. Cancel anytime from the extension — access continues to the end of the period with no further charge. Because the service is delivered immediately, fees already paid are non-refundable except where required by law; if you were charged in error, contact us within 30 days. Full details in our Terms of Service.