Top CSV GitHub Repositories & Tools (2026)

Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF

Full featured CSV parser with simple api and tested against large datasets.

A modern C++ CSV parser and serializer that doesn't make you choose between ease of use or performance.

The Firefly III Data Importer can import data into Firefly III

Comma is a small CSV (ie. comma separated values) generation extension for Ruby objects, that lets you seamlessly define a CSV output format via a small DSL

A library for visualizing gridded data 🌐

This repository contains a comprehensive list of over 30k dynamic DNS domains as of 2024. The list is provided for informational purposes only and can be used for a variety of purposes, including blocking malicious domains, filtering content, and enhancing privacy and security.

Read and write spreadsheet files (CSV, XLSX and ODS), in a fast and scalable way