Caxton

The product is a native macOS text and CSV editor that opens, indexes, searches, edits and sorts files up to 10 GB, including production logs, database exports and multi-million-row CSVs that cause standard editors to fail. It sells to SREs, data engineers, DBAs, QA engineers and analysts who work with large logs and datasets on Mac. It is positioned as a native AppKit, memory-mapped alternative to Electron-based editors, rebuilding workflows previously exclusive to EmEditor on Windows for macOS.

Key features

• Open and edit 10 GB files
• Memory-mapped I/O with piece-table model
• Tiered line index past 120M lines
• Viewport-only rendering
• Large File Controller for byte-range slices
• Follow-tail for growing logs
• CSV grid with delimiter auto-detect
• Sort millions of rows by column
• External merge sort for CSV
• Type inference for numeric sorting
• Filter with up to 12 AND/OR conditions
• Regex and plain text search
• Save filter combinations
• Slice mode with surrounding context
• Find and Replace across 10 GB
• Batch Replace with hundreds of pairs
• Find in Files across folders
• Bookmark and export matches