Your digital memory for AI

Every AI forgets you.
SecondSelf doesn't.

A visual mindmap of who you are, what you know, and what you care about. One browser extension injects the right context into any AI chat, so ChatGPT, Claude, and Gemini always remember you.

Get Started Free See Pricing

Free forever • No credit card • Works with ChatGPT, Claude, Gemini

The problem

AI has no idea who you are

Every new chat is a blank slate. Every platform is a silo. You spend more time explaining yourself than getting answers.

🔄

Constant repetition

You tell ChatGPT your coding style. Then you tell Claude. Then Gemini. Then you start a new chat and do it all again.

🔒

Siloed memories

ChatGPT's memory doesn't talk to Claude's. Your preferences, context, and history are trapped inside each platform.

💭

No structure

Existing tools dump flat text into prompts. Your identity isn't a paragraph. It's a web of connected knowledge.

🚫

No control

When platforms remember you, you can't see what they stored, edit it, or take it with you when you leave.

How it works

Build your mind. Share it with any AI.

Map yourself

Create nodes for your goals, skills, opinions, memories, and preferences. Connect them into a living knowledge graph that represents who you are.

Install the extension

A lightweight Chrome extension that works silently in the background. It detects when you're chatting with an AI and activates automatically.

AI gets your context

SecondSelf picks the most relevant nodes for each conversation and injects them into the prompt. The AI knows your coding style before you ask for code. It knows your diet before you ask for recipes.

Your memory persists

Switch platforms, start new chats, try new AI tools. Your SecondSelf follows you everywhere. One identity, every conversation.

Why SecondSelf

Not another notes app

Visual, not flat

Your knowledge is a graph, not a document. The mindmap interface makes your identity explorable, editable, and beautiful.

Model-agnostic

Works with ChatGPT, Claude, Gemini, Perplexity, Grok, and any AI that runs in a browser. No lock-in, ever.

Privacy-first

Optional end-to-end encryption. Contextual ads only on free tier, never behavioral. You own your data completely.

Pricing

Less than a coffee

Start free forever. Upgrade when you're ready.

Monthly

Annual

Free

For getting started

1 mindmap
Up to 200 nodes
Basic AI injection
Local storage
Contextual ads

Get Started

Or remove ads for $1.99 one-time

Pro

For power users

$2.99/mo Save $5.88

3 mindmaps
Unlimited nodes
Cloud sync across devices
All AI platforms supported
No ads
Email support

Max

For teams and pros

$5.99/mo Save $11.88

5 mindmaps
Smart linking & auto-tagging
Share & collaborate
End-to-end encryption
Priority support
API access

30-day money-back guarantee on all paid plans

FAQ

Frequently asked questions

Yes, the free tier is genuinely free forever. You get 1 mindmap with up to 200 nodes and basic AI context injection. The free tier includes small contextual ads, which you can remove for a one-time payment of $1.99. No credit card required to sign up.

The Chrome extension runs silently in the background. When it detects you're using an AI chat (ChatGPT, Claude, Gemini, etc.), it automatically selects the most relevant nodes from your mindmap and injects them as context into the conversation. The AI then has your preferences, style, and knowledge without you having to type anything. It's lightweight, uses minimal resources, and you can toggle it on or off anytime.

SecondSelf works with any AI platform that runs in a browser. This includes ChatGPT, Claude, Google Gemini, Perplexity, Grok, Mistral, and more. Because we use browser extension injection rather than API integration, any new AI chat interface is automatically supported. If it has a text input, SecondSelf can inject your context into it.

Absolutely. Free tier data is stored locally on your device by default. Pro and Max tiers use cloud sync with encryption in transit and at rest. Max tier includes optional end-to-end encryption, meaning even we cannot read your data. We never sell your data, never use behavioral tracking, and you can export or delete your data at any time. See our Privacy Policy for full details.

Yes, you can cancel your Pro or Max subscription at any time from your account settings. When you cancel, you'll continue to have access to your paid features until the end of your current billing period. After that, your account reverts to the free tier. All paid plans include a 30-day money-back guarantee, no questions asked.

Your data is always yours. If you downgrade from a paid plan, your mindmaps and nodes are preserved. If you exceed the free tier limits (e.g., more than 1 mindmap or 200 nodes), your extra data becomes read-only until you either upgrade again or trim it down. You can export all your data at any time in standard formats. We never delete your data without explicit consent.

Every AI forgets you.SecondSelf doesn't.