Every feature in ContextLoom
A native macOS Markdown editor and context manager built for developers who work with AI. Here's everything it can do.
Markdown Editor
A focused, distraction-free editor built for writing and editing Markdown files.
- Full syntax highlighting for Markdown
- Monospaced font optimized for readability
- Autosave — never lose a change
- Find and replace across your document
- Full undo/redo history
- No autocorrect or spell-check interference
Live Preview
See your Markdown rendered in real time with full GitHub Flavored Markdown support.
- Full GFM rendering (tables, task lists, footnotes, strikethrough)
- Mermaid diagrams rendered live (flowcharts, sequence, class, state, ER, Gantt)
- Syntax highlighting for 100+ programming languages
- Clickable links open in your browser
- Adaptive theming — matches your system appearance
- Crash recovery for preview rendering
View Modes
Three modes to match how you're working right now.
- Edit mode — full-width editor, no preview distraction
- Split mode — editor and preview side by side
- Read mode — full-width rendered preview for reviewing documents
Workspace Management
Open any folder as a workspace. Manage multiple projects without friction.
- Default Notes workspace for quick captures
- Open any external folder as a workspace
- Persistent access via macOS security-scoped bookmarks
- Context menu integration for workspace actions
- Multiple workspaces open simultaneously
File Tree & Navigation
Navigate large workspaces efficiently with a fast, responsive sidebar.
- Lazy-loading file tree for fast performance
- Search and filter files instantly
- Inline rename without leaving the sidebar
- Back/forward navigation history
- Breadcrumb path display
Context Bundles
Select exactly the files your AI needs and export them as a single, structured bundle.
- Checkbox selection for individual files
- Folder-level selection to grab entire directories
- Structured output with file paths and contents
- One-click copy to clipboard
- Selection counter shows files and estimated tokens
ContextDB Taxonomy
A recommended folder structure that helps both humans and LLMs navigate project knowledge.
- 11-folder taxonomy: 00_index through todos
- Snake_case folders, kebab-case files
- Ready-made Claude.md snippet for Claude Code integration
- Compatible with .cursorrules, Windsurf configs, and any agent
- File templates for specs, architecture docs, ADRs, TODOs, and knowledge summaries
iCloud Sync
Optionally sync your workspaces across Macs using your own iCloud Drive.
- Sync workspaces across all your Macs
- Conflict resolution for simultaneous edits
- Status badge shows sync state
- Graceful fallback when offline — works locally, syncs when reconnected
- Your data stays in your iCloud account — we never see it
Developer Integration
Tools for developers who live in the terminal and automate everything.
- ctxtl CLI — open files and workspaces from your terminal
- contextloom:// URL scheme for automation and linking
- File system watching — see changes from AI agents in real time
- Plain Markdown files — fully Git-compatible
- No proprietary formats or database lock-in
How ContextLoom compares
ContextLoom fills a gap that general-purpose editors and note apps don't address: organizing project context specifically for AI workflows.
| Feature | ContextLoom | Obsidian | iA Writer | VS Code + Markdown |
|---|---|---|---|---|
| Native macOS app | Yes | Electron | Yes | Electron |
| Live Mermaid diagrams | Yes | Plugin | No | Plugin |
| Context bundles for AI | Yes | No | No | No |
| ContextDB taxonomy | Yes | No | No | No |
| Token-optimized export | Yes | No | No | No |
| File system watching | Yes | Yes | No | Yes |
| iCloud Sync | Yes | No | Yes | No |
| CLI tool | Yes | Yes | No | Yes |
| One-time pricing | $4.99 | Free / $50 yr | $49.99 | Free |
| No account required | Yes | Optional | Yes | Optional |
Tech specs
Keyboard shortcuts
File operations
Editing
View
Navigation
Ready to try ContextLoom?
Download the free 7-day trial and see how ContextLoom fits into your AI workflow. No credit card required.