A native Mac editor for text, CSVs, and data files
Real product screens and design references for coding agents
Stage
Not given
Not given
Founded
Not given
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Based in
US
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Pricing model
Freemium
Free
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.
Not given
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
Browse onboarding flows and user journeys
Measured design guides with fonts, colors, and spacing
Compare UI designs against real products
Generate agent-ready build prompts
MCP server integration with Claude, Cursor, VS Code, ChatGPT
REST API endpoint for programmatic access
Documented interactions and design observations
No account or API key required
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
191 product collections with 7,803+ real UI captures, not templates or mockups
Designed specifically for coding agents to reference during UI development
Free with no limits, accounts, or API keys required
MCP server compatibility for seamless agent integration
Documented design patterns with measured design guides for each product
Caxton
Screenrove