Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input
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Updated
Nov 11, 2026 - JavaScript
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Zero-dependency spreadsheet engine. Read & write XLSX, CSV, ODS. Pure TypeScript, works everywhere.
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CSV parser and formatter for node
Fastest end-to-end CSV ingestion for Ruby (with C acceleration). SmarterCSV auto-detects formats, applies smart defaults, and returns Rails-ready hashes for seamless use with ActiveRecord, Sidekiq, parallel jobs, and S3 pipelines — even for messy user-uploaded real-world data.
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One of the World's Fastest .NET CSV Parsers. Modern, minimal, fast, zero allocation, reading and writing of separated values (`csv`, `tsv` etc.). Cross-platform, trimmable and AOT/NativeAOT compatible with blazing fast SIMD vectorized parsing.
CleverCSV is a Python package for handling messy CSV files. It provides a drop-in replacement for the builtin CSV module with improved dialect detection, and comes with a handy command line application for working with CSV files.
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The FileHelpers are a free and easy to use .NET library to read/write data from fixed length or delimited records in files, strings or streams
A modern C++ CSV parser and serializer that doesn't make you choose between ease of use or performance.
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C++ CSV parser library
📐 Pushing the boundaries of simplicity
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🕶️A curated list of awesome tools for dealing with CSV.
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🔥 🔥 🔥Open Source & AI driven Data Onboarding Platform:Free flatfile.com alternative
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Mass processing data with a complete ETL for .net developers
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Fast, lightweight, and RFC 4180 compliant CSV library for Java. Zero dependencies, ~90 KiB. Trusted by Apache NiFi, JUnit, and Neo4j.
Fast reading of delimited files
Fast CSV parser and writer for Modern C++
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Read and write CSV files row-by-row or through Swift's Codable interface.
Easy to use, easy to extend and high-performance library for CSV parsing with .NET
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