Margen
Think on paper. Work everywhere else.
You shouldn't have to choose between thinking well and getting things done. Margen transcribes every page you write on your Boox and delivers it to Claude, ChatGPT, Notion and Obsidian. You keep the pen; your ideas stay within reach.
Claude
ChatGPT
Notion
Obsidian
ClaudeChatGPTNotionObsidianThe problem
Your best thinking happens on paper. Then it gets stuck there.
The tablet is a wonderful place to think. It's a bad place to find anything later. Search stops at the device, recognition struggles with real handwriting, and nothing reaches the tools where your work actually happens.
“Manually exporting files, converting formats, and copy-pasting text like it was 1999.”
“Roughly as organized as napkins shoved in your glovebox… if you need a specific one, well, good luck.”
“[My DIY integration] ended up being too unreliable for real-life use.”
How it works
Keep the pen. Lose the retyping.
Set up in minutes · No password · No Zapier
Claude
Meetings / 1:1 Sam
Inbox / 1-1-sam.mdWho it's for
Whatever you write, it ends up where you need it.
Second-brain builders
Your handwriting, finally part of your second brain.
Obsidian, Notion and Claude already hold everything else you know. Margen adds the pages you think best on, so your system is whole again.
Managers and consultants
Your next 1:1 starts with last week's notes, already in Notion.
Take notes by hand, stay present in the room, and have every decision and action item ready before the follow-up.
Researchers and PhD students
Every margin note, across every paper, one search away.
Ask Claude what you noted about a concept across months of reading, then write the chapter.
Journalers
Write freely. Look back with clarity.
Keep your journal by hand, the way it's meant to be kept. When you want perspective, ask what's been on your mind.
Privacy
Your notes stay yours.
READ-ONLY MCP
Claude and ChatGPT can read your notes; it cannot change them. You connect it yourself and can disconnect at any time.
No training
Pages are transcribed by an AI provider with zero data retention. Your notes are never used to train models.
Storage
Transcriptions and page images are encrypted in transit and at rest.
Deleting
Deleting a note removes it from the server. Deleting your account removes everything Margen stores for you: transcriptions, page images and Claude's access.
Built for Boox
Writes as well as Boox Notes.
The writing engine is optimized for Boox tablets. Ink feels as fast and precise as the native Notes app, so you don't give anything up by switching.
Low latency
Strokes appear under the pen tip as you write, with no lag behind your hand.
Pen feel
Pressure, palm rejection and the eraser end work the way they do in Boox Notes.
E Ink tuned
Screen refresh is tuned for E Ink, so pages stay crisp without ghosting.
Early access
Think on paper. Never lose a page again.
We're opening Margen to Boox owners in small groups. Tell us how you work and we'll let you know when it's your turn.
Email
Your Boox
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ON THE LIST
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