Mindoo Vega Mind map and Kanban in one embedded app
Haven free beta Data sovereignty
Work together - online, offline, and across organizations.
Haven is a calm, collaborative workspace for notes, files, apps, and data - end-to-end encrypted, on every device, with the complete history of every change.
Missing an app?
Describe it, and the built-in App Builder writes it, publishes it, and installs it for you - no coding required. It all runs on MindooDB, an open-source, local-first sync database you can host in your own jurisdiction; the server only ever sees ciphertext - real data sovereignty, without giving up real-time collaboration.
Why Haven
Five things that set Haven apart
Secure by default
End-to-end encrypted
Client-side keys, no plaintext on the server. Apps only see what you explicitly share. Fine-grained access control governs who can create, change or delete documents - enforced cryptographically, even offline.
Collaborative
Multi-user by design
Automerge-based merges, shared tenants, and a guided onboarding flow for bringing teams in.
Cross-platform
Installable everywhere
Runs as a PWA on iOS, Android, and desktop. Add multiple instances for work, personal, and demos.
Local-first
Works without network
Full local use with built-in backup and flexible push-only, pull-only, or bidirectional sync.
Extensible
Real app platform
Describe the app your team is missing and the App Builder writes, hosts, and installs it - no coding required. Or build it yourself with the MindooDB App SDK.
In practice
From three orgs into one private workspace
When buyer, seller, and counsel work on the same confidential deal, each side keeps its own tenant. Haven brings the shared documents, Q&A, and closing tasks into one workspace - while the server only ever sees ciphertext, and every change becomes a signed node in a tamper-evident DAG.
New podcast episode
Zero-Trust Collaboration with MindooDB Haven
Two AI hosts · ~23 min · generated by NotebookLM
A relaxed deep-dive into how Haven turns MindooDB into a browser-based workspace: end-to-end encrypted data with keys that never leave your device, local replicas for fast offline work, CRDT-based merging with a tamper-evident change history, strictly separated multi-tenant workspaces, custom apps, and virtual views that combine data across contexts. An entertaining and accessible introduction to the platform.
One surface for daily work
Your workspace, your way
Pages, Chicklets, and groups let you arrange databases, applications, notes, web content, and media exactly the way your team thinks. Haven becomes the calm home screen for your encrypted data.
- Multiple workspace pages reorderable like tabs, plus a Start page for a full overview.
- Draggable, resizable tiles for databases, apps, notes, web, media, and Mermaid diagrams.
- Search by database, tenant, tag, or server so nothing gets lost.
- Database browser with CRUD, revision compare, and drag-and-drop file attachments.
- Rich file preview for Office, images, audio, and video - MP4 even transmuxed on the fly.
See it in action
A real workspace, ready for everyday work
Haven is not a concept mockup. It is a working product that already brings together navigation, workspace organization, search, database access, and local-first workflows in the browser.
Click the workspace screenshot to scroll through the whole page: ten Haven apps running side by side, from spreadsheets, documents and slides to a 3D map and a sketchbook.
Build on Haven
A real app platform, not just a launcher
Applications can run embedded in the Haven workspace or in their own tab, access selected databases and views, and ship as either externally hosted web apps or Haven-hosted bundles served offline by the service worker. And you do not have to write one to get one: the App Builder turns a description into a deployed, installed app.
- App Builder - no coding required. Describe the app your team is missing and Haven's own builder app sets up the project, publishes it to the web, has an AI agent write it, and installs it in Haven. What you get is a full MindooDB App with its own source code, free to use every platform feature - and asking for the next feature is just another brief. You bring a GitHub, Cloudflare, and Cursor account; the builder itself is open source.
- MindooDB App SDK with launch context, live events, documents, attachments, and Virtual Views.
- Capability-based security - Haven decides what every app can see and do.
- Online or offline - hosted bundles run even when the network is gone.
- Twelve apps in the store - nine first-party productivity apps you install from Haven (Mindoo Vega, for mind mapping, Kanban, Gantt scheduling and spreadsheet reporting on the same project nodes, Mindoo Cairn, a shared offline field map for tree inventories, inspections, crisis areas and scavenger hunts, Mindoo TodoManager, for team todos, Mindoo TeamEdit, a collaborative editor for markdown and Word documents that lets several people edit the same .docx on several devices at once without a Word licence, Mindoo TeamGrid, a collaborative spreadsheet with around 280 Excel-compatible formulas, charts, XLSX round-trip, and Virtual View Sheets that pull data from cross-tenant Haven views into ordinary worksheets, Mindoo TeamSlides, PowerPoint-compatible presentations your team edits together, with charts, tables, animations and .pptx import and export, Mindoo Contacts, the address book for companies and the people who work there, for yourself or shared with your team, with vCard import and export and revisions, Mindoo TeamSketchbook, a collaborative multi-page hand-drawing sketch book with paper styles and stroke-level merging, and Mindoo Teacher's Desk, a complete digital workspace for teachers), a beautiful responsive weather tile (Mindoo Weather) that adapts to the tile size and showcases the SDK's UX surface, and the open-source MindooDB App SDK example to fork as the starting point for your own app, plus the App Builder itself.
- Or bring your own toolchain - fork the starter template, or feed /llms-full.txt and the example repo to the coding agent you already use.
TodoManager Light and dark mode team task boards
Mindoo TeamEdit Collaborative editor for Word and Markdown documents
Private by design
Encrypted from the first keystroke
Haven inherits MindooDB's trust model. Data is encrypted on the client before it ever leaves the device, apps run in sandboxed iframes with granular permissions, and the DAG explorer makes collaboration auditable.
- End-to-end encryption with client-held keys and no plaintext on infrastructure.
- Sandboxed apps on separate origins; hosted bundles get an even stricter opaque-origin sandbox.
- DAG explorer turns Automerge merges into a navigable, auditable history.
- Flexible sync - push-only, pull-only, or bidirectional per setup, and per database you can choose whether to transfer documents plus attachments or documents only for leaner, faster syncs.
- Built-in backup of in-browser data, plus Virtual Views as a secure analytical layer.
Where your data lives
Local, demo, or your own server
Haven Community works in three topologies. Choose the one that matches your workflow - you can move between them without changing clients.
Local only
Fully in your browser
Create tenants and databases entirely offline. No server, no sync - ideal for personal use, drafts, and offline demos.
Mindoo demo server
Try team features
Push a local tenant to the hosted demo server and invite real collaborators. Each tenant can sync with it for 14 days, and demo data is wiped periodically - it is for evaluation, not production.
Self-hosted
Your own server
Point Haven at a MindooDB server you run. See README-server.md for setup.
Two ways to run Haven
Community or Enterprise
Haven Community
Free beta The Haven PWA at haven.mindoodb.com. Free to use today, full local use, optional demo server, and self-hosting against your own MindooDB server.
Haven Enterprise
Commercial - in development Custom branding, managed UI and workspaces, in-house app store, workspace roaming, automatic backup, inline attachment editing, and more - from Mindoo GmbH.
Latest from the blog
MindooDB and Haven updates
Product updates and implementation notes from the MindooDB ecosystem.
October 29, 2026
Haven Desktop for macOS and Windows is ready to download
Haven, our end-to-end encrypted, local-first workspace, is now available as a native desktop app: notarized for macOS, signed for Windows on x64 and ARM64. It is built on Tauri 2, stores your data in a local SQLite database, connects local AI agents through MCP without an open network port, and keeps itself up to date. The apps for iOS and Android are in testing, and you can join.
October 27, 2026
What we learned making 12 apps usable by AI agents with WebMCP
We gave twelve apps of our end-to-end encrypted, local-first workspace Haven their own tools for AI agents through WebMCP, and connected them to MCP clients such as goose and Claude Code. This post covers how WebMCP differs from MCP, how we reveal tools step by step instead of showing hundreds at once, the design rules that made tools usable for models, what went wrong on the way, why undo and an append-only history are the precondition for letting an agent near real data, and how to keep that data in Europe or on your own machine.
October 18, 2026
The story behind MindooDB Haven
From a student knowledge base on IBM Notes/Domino in 2001, through MindPlan, nine years in the IBM Design Partner Program, Domino JNA and the Domino JNX API underneath the HCL Domino REST API, to a fresh start: MindooDB, an open source database in which not even the server can read your data, and Haven, the collaboration client that brings apps together on one surface - and why we drink our own champagne.