Concepts

Understand the core building blocks of Cobloc: workspaces, projects, pages, and blocks.

Cobloc is organized around a simple hierarchy: Workspaces contain Projects, projects contain Pages, and pages contain Blocks. Understanding this structure helps you organize your work effectively.

Workspaces

A workspace is the top-level container for everything you create. It has its own members, settings, tags, and content. Most people use one workspace for personal projects and another for team work. You can switch between workspaces from the sidebar dropdown.

Projects

Projects group related pages together. Think of them as folders — a project for "Marketing", another for "Product Roadmap", another for "Personal Notes". Projects can have a custom icon, color, and description. They appear in the sidebar with expandable page lists.

Pages don't have to live inside a project. Standalone pages appear in the sidebar under a separate "Pages" section.

Pages

Every page in Cobloc is an infinite canvas. Unlike traditional documents that flow vertically, a Cobloc page lets you place content anywhere in a 2D space. You can pan, zoom, and arrange blocks in whatever layout makes sense for your thinking.

Pages have a title, can belong to a project (or be standalone), and can be shared with specific people at different permission levels.

Blocks

Blocks are the content units on your canvas. Cobloc supports six block types:

Notes
Rich text blocks with formatting, links, mentions, and color options.
Todos
Checklists with progress tracking, mentions, and real-time collaboration.
Links
Paste any URL and get an automatic rich preview card with title, description, and image.
Images
Upload images or embed from URLs. Supports JPG, PNG, and WEBP up to 10 MB.
Documents
Upload PDFs and view them inline with a built-in viewer. Up to 20 MB.
AI Chat
Have conversations with Claude, Gemini, or GPT-4o directly on your canvas. Branch conversations to explore ideas in parallel.

Every block can be moved, resized, layered, colored, and connected to other blocks with visual edges.

Tags

Tags are workspace-level labels you can attach to any block. Use them to categorize content across pages — for example, tag blocks as "Urgent", "Reference", or "Idea". Tags have customizable colors and can be managed from workspace settings.

Members & roles

Cobloc has three permission levels: Owner (full control), Editor (can create and edit), and Viewer (read-only). Membership can be set at the workspace, project, or individual page level, giving you fine-grained access control.