A native Mac editor for text, CSVs, and data files
The whiteboard for you, your team and your AI
Stage
Not given
Not given
Founded
Not given
Not given
Based in
US
Not given
Pricing model
Freemium
Freemium
Pricing
Caxton Free (free forever); Caxton Pro monthly at $9.99 USD, annual at $99.99 USD, or lifetime at $179.99 USD. Team pricing starts at $79 to $99.99 USD per seat per year.
Free: unlimited local boards and 3 cloud boards, no card required. Pro: $6.99 per month or $69.99 per year (about 17% less than twelve monthly payments), first month free.
Key features
Text editing with memory-mapped files for large documents
CSV and TSV table editing with column transforms
Column transformations and data type preservation
CSV validation with structural and data rules
File comparison without copying data
Extract matches and columns to new documents
Local processing with no cloud uploads or telemetry
MCP server for Claude, ChatGPT and other AI apps
Real-time collaboration
Infinite canvas with hand-drawn feel
Local-first storage with optional cloud sync
End-to-end encrypted snapshot links
Sketched-shape recognition
Lasso selection
Presentation mode
Version history
Extensible with marketplace extensions
What makes it different
Opens files directly from disk without importing or uploading, preserving data exactly as stored
Combines text editor, CSV table editor, and log viewer in one native Mac application
Handles multi-gigabyte files with consistent performance and one-millisecond keystroke latency
Preserves leading zeros, long IDs, and data types exactly as stored in the file
All files stay local to your Mac with no cloud processing, telemetry, or vendor lock-in
AI integration with your own AI via MCP, not built-in
Local-first architecture keeps your data on your device by default
Extensible platform with marketplace and custom extensions
Caxton
Drawdy