Hub
Central dashboard linking to every app in the suite.
Personal AI workspace
Hollow
A unified personal AI workspace for notes, code, documents, and planning.
Hollow brings together a Hub, a Console for chat and code work, plus Notes, Workbooks, Slides, Diagram, PDF, Forms, Files, and Calendar. Every app shares the same identity, storage, and design language, so moving between work modes never means switching tools.
The Console is the AI core. Chat handles conversations and artefacts, Code provides codebase retrieval and AI editing, and Team runs a multi-agent runtime for longer tasks. Everything else stays calm and focused on the document or workspace in front of you.
Highlights
- Ten apps under one identity and one design system
- Console for chat, code, and multi-agent workflows
- Notes, Workbooks, Slides, Diagram, PDF, Forms, Files, and Calendar
- Privacy-first defaults with email and UID allowlist sign-in
- Hosted on Firebase with Vertex AI for AI features
The suite
Ten apps. One workspace.
Hollow runs as a single Firebase project at projecthollow.com with path-based routing. Every app shares the same identity, storage rules, and design system.
Console
Unified AI workspace for chat, code, and multi-agent workflows.
Notes
Privacy-first markdown notes with AI editing and offline support.
Workbooks
Spreadsheets with formulas, multi-sheet workbooks, and CSV or XLSX import and export.
Slides
Presentation builder with imports from Notes, Workbooks, and registered assets.
Diagram
Engineering and architecture diagrams, delivery flows, and platform topology.
PDF review and annotation foundation.
Forms
Structured forms with submissions, file uploads, and calendar follow-ups.
Files
File storage with folder hierarchy, upload and download, and previews.
Calendar
Calendar with month, week, day, and agenda views.
Get started
Open Hollow.
Sign in with an allow-listed email account to access the workspace.