Keep the ideas. Lose the mess.

One space for everything
you're planning, learning, or building.

Create a space, pick a type, and the right tools appear.
Invite anyone. Work together in real time.

Create your first space → See space types ↓
🎉 Trips & events 📚 Studying 💼 Projects 💡 Brainstorming ⭐ Anything custom
Space types

Pick a type. The right tools show up.

Every space has notes, resources, AI summaries, comments, and sharing. Choose a type to unlock the tools built for that kind of work.

🎉
Events

Plan a trip, a wedding, or any event — with everyone in the loop.

Option boards Group voting Confirm picks Day-by-day timeline Prep & packing list Assign to people Vision board
Unlocked for Events spaces
📚
Learning

Add resources, get AI summaries, generate flashcards. Study without leaving your notes.

AI flashcard generation PDF summaries YouTube transcripts Article summaries Flip-card study mode Add cards manually
Unlocked for Learning spaces
💼
Work

Structured notes, action items, and your team — one space.

Action items Rich text sections File & link attachments AI resource summaries Section comments Editor & viewer roles
Unlocked for Work spaces
💡
Brainstorming

Start messy on the canvas. End with a clear decision on the Pros & Cons board.

Whiteboard canvas Sticky notes Shapes & arrows Image embed Zoom & pan Pros & cons board Canvas comment pins
Unlocked for Brainstorming spaces
Custom

Name it anything — Wedding, Socials, Research — and choose exactly which features you need.

Whiteboard Pros & cons Flashcards Action items Timeline Packing list Option boards
Mix & match any feature combination
Every space includes
📝 Rich text notes 📎 Resources ✨ AI summaries 💬 Comments 👥 Share by email 🔒 Editor & viewer roles ⚡ Real-time sync 🔔 Notifications 🧩 Browser extension
How it works

Up and running in seconds

No setup. No configuration. Just create a space and go.

1
Create a space

Name it, pick a type. The right tools appear automatically. Use Custom for anything else.

2
Add your content

Write sections, drop in YouTube links, upload files or PDFs. AI can summarise any resource in one click.

3
Share & collaborate

Invite anyone by email as an Editor or Viewer. Everyone sees every change the moment it happens.

Browser Extension

Save anything to a space.
In one click.

Install the Sourcebook extension for Chrome. Find a useful video, article or PDF — hit the icon, pick your space, and it's saved. No tab switching. No copy-pasting.

Get the extension →
Resource name
Tokyo — Best neighbourhoods guide
▶ Video
📄 Article
📑 PDF
📎 File
Save to space
Japan Trip 2026 🎉

Create your first space today.

Free to use. No credit card required.

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