🚀 High-Performance CSV Processing Tools
Open source, cross-platform, and built for developers and companies who need speed, reliability, and cost savings at scale.
Green by Design: Lower infrastructure & energy usage
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Blazing Fast
Optimized for speed with native code and zero dependencies.
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Memory Efficient
Stream huge CSV files with constant memory usage.
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Cross-Platform
Works on Linux, macOS, Windows, and more.
Our Projects
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FastCSV-ext
Supercharge PHP CSV processing with 3.6–4.8x faster performance and lower memory usage.
- • 3.6–4.8x faster than PHP CSV using SPLFileObject
- • Cross-platform (Linux, macOS, Windows)
- • MIT License
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FastCSV-C
A blazing-fast, dependency-free C library for CSV parsing and writing at scale.
- • Zero dependencies
- • Thread-safe design
- • MIT License
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PHP-CSVHelper
Modern PHP library with unified API and automatic performance boost.
- • Auto-uses FastCSV extension for efficiency and fallback to SplFileObject for reliability
- • Constant memory usage
- • MIT License
Support CSVToolkit
Help us build faster, greener, and more reliable CSV tools for everyone—developers and companies alike.