AI memory · Notes for you and your AI
Turn your conversations into AI memory you can actually use.
Every new chat starts from zero, and each AI keeps its own memory, out of reach of the others. Memex is one memory for all of them.
Save what matters, they read everything back next time.
Free, private, secured
AI memex works with
One memory for every AI you use
Use one, or all of them at once. They read and write the same notes, so each one picks up where another left off.
ChatGPT
Claude
Gemini
Perplexity
Claude Code
Codex
Cursor
Hermes
OpenClaw
MCP
Chat assistants
ChatGPT, Claude, Gemini, Perplexity
On your phone, in the browser or in the app. Connect it once in its settings, then just say “save this to memex” or “check memex first”.
Coding assistants
Claude Code, Codex, Cursor
Your project’s decisions and conventions are there at the start of every session. Stop re-explaining the codebase.
Agents that work on their own
Hermes, OpenClaw
Agents running on their own schedule read the same memory as your chats. What they write waits for your OK, unless you trust them to write directly.
Write and plan with Claude, code with Codex, let Hermes follow up: they all work from the same memory notes.
memex at work
Whatever you use AI for, memex remembers it.
Notes
Skills
Review Inbox
ChatGPTChatGPT
Every memory record is a note in memex — one you can see, edit or delete. Your AI memory is no longer a black box.
Problems memex solves
You’ve probably said one of these to your AI.
Pick one to see what goes wrong, and how memex fixes it.
Don’t take our word for it. Ask your AI about memex
Send this prompt to the AI you already use, and ask how memex could help with your own work.
Read https://memex.tools/llms-full.txt, the full description and documentation of memex.tools. Then tell me what memex is and how I could use it with you. Be honest about where it would help me and where it wouldn’t. I’ll have follow-up questions.
Inside memex
Everything memex can do for you
Memory and search
Integrations
Personalization and skills
- SkillsTeach a task once, and every connected AI does it the same way.
- ProfileOne note about you that every AI reads first.
- Writing rulesSet how your AI writes your notes.
- Bring your own keyOptional: your OpenAI, Anthropic or Google key writes descriptions and tags.
- Layouts and workspacesSide-by-side views, saved searches, light and dark themes, on desktop or phone.
Review and history
Import and export
Security and privacy
Open source and self-hosting
Compare memex
What makes memex different
| Regular chat | Memory products* | memex | |
|---|---|---|---|
| Remembers across new chats | Partly | Yes | Yes |
| Shared by all your AIs | No | Yes | Yes |
| See everything it remembers | Partly | Partly | Yes |
| Fix a wrong memory | Partly | Partly | Yes |
| You decide what’s saved | No | No | Yes |
| Undo any change | No | Partly | Yes |
| Reusable instructions across AIs | Partly | Partly | Yes |
| Export everything | Partly | Partly | Yes |
| Never used for training | Partly | Partly | Yes |
YesPartlyNo
* What is said here about AI providers and professional AI memory products comes from a review of more than sixty products as of September 2026. It describes patterns across the group, not a single product. They differ in scope, and the review did not test each claimed feature.
Start using memex
Get your AI memory.
Memex is free, private, secured and yours to take anywhere. Connect the AI you already use, and start with the next thing worth keeping.
Start Building Your Memory.
Create your account and connect your AI tools in seconds.
Get your AI memoryPrefer to keep your memex local?
Install memex on your own computer and keep everything local. It is open source, and Claude Code, Codex and the other assistants on your computer can use it.
Install from GitHubQuestions
Doesn’t ChatGPT already remember things about me?
They all do, each inside its own system, and that memory stays behind when you switch. With all the complexity of modern AI memory solutions, in most cases what your AI needs is a simple notebook you both can read and write to. Memex is that notebook: one set of notes every assistant you connect can read, written in your words, with you deciding what goes in. Connect the next assistant and it reads the same notes. Nothing to export, nothing to explain again.
Can I see what my AI remembers about me?
Yes. Every memory is a note you can open, read and edit, on any device with a browser. Nothing your AI saves in memex is hidden from you.
What happens when I switch from ChatGPT to Claude?
Connect Claude to the same memex, and it reads everything ChatGPT saved there. Nothing to export or import, and you can keep using both.
Why is memex free?
Memex is currently free because it has no AI of its own to pay for. Your assistant does the thinking on its own account, so there’s no model bill to pass on to you. Everything memex does today is free for everyone. Limits are generous and may change. Future premium features may cost a one-time payment or a subscription, but they’ll be optional, and nothing you use now will move behind a paywall.
Will this make more work for me?
Only as much as you put in. Your assistant does the writing, and it is fine to let held notes sit until you have a minute.
A knowledge base does take the shape of the person who keeps it, though. Your part is the verdict: what is true, and what stays. Spend a minute on that per note and everything you build on it is better for it.
Who can see the information I save?
Notes are private to your account and stored on Amazon’s infrastructure in the US. Connected assistants can read them. Memex also sends note text to OpenAI for meaning-search indexing and summaries, so saving here can involve a provider you may not use for chat. Read the privacy policy before saving sensitive material, and keep passwords and API keys elsewhere.
What if I want to leave?
Take everything. One click downloads every note as Markdown, links included, to open in any program or import into self-hosted memex. No fee, no request, no format of ours to decode.
Can I run memex on my own computer?
Yes. Memex comes two ways, with the same notes and the same review inbox. Neither is the better one; they suit different needs.