CSV File Joiner

CSV File Joiner is an enterprise-grade macOS application engineered to deliver high-performance data merging of delimited files, including CSV, PSV, TSV, and other formats. Built with advanced streaming algorithms and intelligent format detection, the application processes large-scale datasets with exceptional speed and reliability, making it the preferred solution for data-driven organizations, enterprise analytics teams, and professional data management workflows. Features - Seamlessly handles CSV, TSV, PSV, SCSV, and delimited text files with automatic detection of comma, tab, semicolon, pipe, and space separators - Intelligent Line Ending Detection that automatically recognizes and processes line feeds, carriage returns, and carriage return+line feeds line terminators from Windows, macOS, and Unix systems - Advanced streaming algorithms process gigabyte-scale files in seconds, not minutes—up to 10x faster than traditional tools - Flexible Header Options allows for three intelligent modes: include headers from first file only, skip all headers, or preserve no headers—perfect for any data structure - Real-Time Format Conversion instantly converts between different delimiters and line endings during merge—transform pipe-separated files to comma-separated output in a single operation - Sleek Drag-and-Drop Interface effortlessly allows files to be added by drag-and-drop - Customizable Ordering allows join order to be changed after files are added - Smart Progress Visualization shows real-time progress of merge operation - Memory-Efficient Architecture that uses non-blocking operations for minimal system impact, handling multi-gigabyte datasets while using less than 50MB RAM - Instant Preview and Validation allows reviewing detected formats and configurations before processing Performance Benchmarks - Process 1GB+ files in under 30 seconds - Handle 100+ concurrent file merges without performance degradation - Maintains less than a 50MB memory footprint regardless of file size - Achieve 99.99% uptime reliability in production environments