Tablecruncher is a lightweight, open-source CSV editor designed to view, edit, and manipulate large tabular datasets with speed and efficiency. Unlike traditional spreadsheet tools that struggle or freeze when opening massive files, Tablecruncher is optimized to handle multi-gigabyte CSV files containing tens of millions of rows.

Key Features:

• Blazing-Fast Large File Handling: Opens and edits files larger than 2 GB (over 15 million rows) in seconds with minimal RAM consumption.
• Automatic Detection: Automatically detects file encodings (UTF-8, UTF-16, Windows 1252, etc.) and delimiters (comma, tab, semicolon, pipe).
• JavaScript Macro Support: Allows power users to write custom JavaScript scripts to automate data manipulation, perform complex calculations, or modify cell contents.
• Advanced Search & Filter: Supports ECMAScript 5 Regular Expressions (Regex) for pattern matching, replacing, and flagging specific rows.
• Data Exporting: Enables quick conversion of tabular data into JSON format (array-of-objects or array-of-arrays).
• Cross-Platform & Lightweight: Available for macOS, Windows, and Linux as a fast, clean application without bloatware or unnecessary extras.