Your second brain
that never forgets.
Munwyn captures every thought — wherever you are. AI weaves them into your atlas, so you find anything the moment you need it.
7 days of everything, free · no card · the core stays free forever
We open seats in batches — you'll hear from us by e-mail, usually within days.
You write notes. You never read them.
Writing things down is easy. Finding them, connecting them and coming back at the right moment is work nobody does — which is why most second brains end up as graveyards of text. Munwyn does that work for you.
Your knowledge as a night sky
Every thought is a star. Areas form constellations, connections the threads between them. Rotate, zoom, click — and you're inside the thought.
The 2D map is free. The full 3D atlas is part of Munwyn Insight.
Explore the atlas →
Four steps. No sorting.
You capture
⌘K from anywhere. Write, speak, snap a photo, paste a link — the type figures itself out.
AI processes
Summarizes, files it into an area, finds connections with what you already know.
It comes back
Insights, the Sunday letter, open loops, tasks pulled out of your thoughts.
You find anything
Ask naturally: "what did I think about that interview?"
What Munwyn can do
Capture from anywhere
Text, voice with transcription, image, link. Voice commands: say "share to the Family atlas" — and it happens.
Learn more →The atlas
2D map free, the full 3D atlas with Insight. Saved views, light and night mode.
Learn more →Ask your archive
“What did I write down about that offer?” An answer built only from your own thoughts — with links, so you can check it.
Learn more →Reflect
Daily insights, the Sunday letter, challenges, compost, open loops, a yearly Wrapped.
Learn more →Tasks from thoughts
"Call mom" inside a thought becomes a task on its own — with a deadline and a daily digest.
Learn more →Shared atlas
A common map for a couple, a team or a study group. Joining by invitation is free.
Learn more →Personal dictionary
Teach Munwyn your names and projects — voice transcription nails them. Fix past mistakes everywhere at once.
Learn more →
Your thoughts, your rules
A per-thought "Keep from AI" switch — a marked thought is never sent to the model. An AI operations log shows what was sent and when. No tracking cookies. And if you want, attach your own key and pay the model directly.
The core is free. Forever.
Unlimited thoughts, unlimited search, the map of your mind. You pay only for AI synthesis.
- Unlimited thoughts
- Unlimited search
- Map + 3D atlas preview
- 500 MB attachments
- The full 3D atlas
- Sunday letter & insights
- Open loops & contradictions
- 5 GB attachments
- Everything in Insight
- No synthesis limit
- Key encrypted, yours only
Every new account gets its first 7 days with everything in Munwyn Insight. Free, no card. Prices show in your local currency at checkout.
Think together
A shared atlas for a couple, a team or a study group. Creating one takes Insight; joining by invitation is free.
Shared atlases →On every device
The web today — the full app in your browser. iOS and Android follow right after launch; leave your e-mail and we'll let you know.
Platforms →A company that remembers how it used to think
Munwyn Council is the company layer of Munwyn. Your private mind stays yours — company spaces belong to the company and stay with it when people leave.
Ask the company memory
“Why did we drop that pilot?” An answer built only from thoughts you are allowed to see — with links to them.
Meetings write themselves down
A recording or a transcript → proposed thoughts and decisions. Nothing is saved until a person ticks it.
Slack, Teams, Drive, Notion
Thoughts flow in from where the team already works. Tasks from decisions go out to Linear or Jira.
Someone argues back
Contradictions across the company, a graveyard of initiatives, blind spots and decision memory with the context of its time.
Frequently asked
Is Munwyn really free?
Yes. Unlimited thoughts, unlimited semantic search and the map of thoughts are free forever. You pay for AI synthesis — the Sunday letter, contradictions, open loops — and for the full 3D atlas.
How many thoughts can I store?
There is no limit, in any tier including the free one. Only attachments are limited — 500 MB free, 5 GB with Insight; text never counts.
What happens when I cancel?
Your subscription runs to the end of the paid period, then the account returns to Free. No thought is deleted — Insight features simply go dormant.
Does Munwyn work in my language?
The interface, e-mails and notifications are in English and Czech; the AI is multilingual and connects thoughts across languages.
What does "your own key" mean?
On Munwyn Direct you attach your own Anthropic API key and pay the model directly — with no monthly limit. The key is stored encrypted and you can delete it any time.
Be among the first
Launching September 1, 2026 — request early access before it opens to everyone.
✦ Get early access