C2FO/fast-csv

Health v2 · maintenance only

Adoption not part of the score

1788 stars · 220 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

fast-csv is a Node.js library for parsing and formatting CSV and other delimiter-separated files, written in TypeScript. It is stream-based to handle large files with a low memory footprint and offers flexible parsing and formatting options.

Use cases

• parse large csv files in node without loading them into memory
• write csv files from node.js data
• convert delimited text files to json objects
• stream csv data through a node pipeline
• import csv exports into a database
• generate csv reports from application data

When to choose

• you need high-performance csv parsing or writing in Node.js
• you work with large files and want stream-based, low-memory processing
• you want flexible options for quoting, delimiters, and escaping
• you prefer a TypeScript-first library with typed APIs

When to avoid

• you need csv handling outside the Node.js ecosystem
• you need full spreadsheet formats like xlsx rather than plain csv
• you need a browser-only csv parser

Facets

library · maturity stable

parser serialization csv streaming files developer-tools cli csv-parsing csv-formatting typescript streams delimited-files data-engineering nodejs

Member repositories

For agents

markdown · JSON · MCP: product_card(name="C2FO/fast-csv")