react-native-csv is the fastest CSV (or delimited text) parser for React Native.
Fast and powerful CSV parser for the browser that supports web workers and streaming large files. Converts CSV to JSON and JSON to CSV.
Fastest Levenshtein distance implementation in JS.
The fastest directory crawler & globbing alternative to glob, fast-glob, & tiny-glob. Crawls 1m files in < 1s
fast-csv formatting module
CSV parser and writer
CSV parsing implementing the Node.js `stream.Transform` API
fast-csv parsing package
CSV stringifier implementing the Node.js `stream.Transform` API
The fastest in-browser CSV (or delimited text) parser for React. It is full of useful features such as CSVReader, CSVDownloader, readString, jsonToCSV, readRemoteFile, ... etc.
SvelteKit is the fastest way to build Svelte apps
Streaming CSV parser that aims for maximum speed as well as compatibility with the csv-spectrum test suite
A mature CSV toolset with simple api, full of options and tested against large datasets.
EC cryptography
A JSON to CSV and CSV to JSON converter that natively supports sub-documents and auto-generates the CSV heading.
CSV and object generation implementing the Node.js `stream.Readable` API
Fastest stable deterministic JSON.stringify()
A jQuery CSV parser plugin. Battle Tested | Optimized | 100% IETF RFC 4180 Complete
The fastest JS validator library for NodeJS
Convenient parsing for Fetch.
Convert objects/arrays into a CSV string or write them into a CSV file
Reads / writes floats / doubles from / to buffers in both modern and ancient browsers.
TypeScript definitions for react-csv
Blazingly fast recursive convertion to and from camelCase or PascalCase for Objects and Arrays
Fastest standard CSV parser for MRI Ruby and JRuby
SmarterCSV is a high-performance CSV reader and writer for Ruby focused on fastest end-to-end ingestion — not just parsing. It returns ready-to-use hashes with configurable header and value transformations, intelligent defaults, and automatic delimiter discovery. Built for real-world data pipelines, SmarterCSV supports chunked processing for large files, streaming via Enumerable APIs, and C acceleration to optimize the full ingestion path (parsing + hash construction + conversions). Designed to handle messy user-uploaded CSV while remaining easy to integrate with Rails, ActiveRecord imports, Sidekiq jobs, parallel processing, and S3-based workflows.
Fastest-CSV fork with encoding support
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