# CyrusNuevoDia/CSV.js

A simple, blazing-fast CSV parser and encoder. Full RFC 4180 compliance.

Repository: https://github.com/CyrusNuevoDia/CSV.js
Canonical: https://ross.abutalabs.com/products/csvjs
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2016-10-04T01:26:06+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4484, "days_push": 3621, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1533, forks 96 (observed 2026-08-28T04:04:59.590840+00:00)

## What it is
CSV.js is a small JavaScript library for parsing and encoding CSV data with full RFC 4180 compliance. It works in browsers, Node.js, and AMD environments, offering streaming-style iteration via forEach and configurable type casting.

## Use cases
- parse csv files in the browser
- convert csv strings to javascript arrays
- encode arrays of objects as csv
- import spreadsheet data into a web app
- stream large csv records one at a time
- handle quoted and multiline csv fields per rfc 4180

## When to choose
- you need a lightweight, dependency-free CSV parser for browser or Node.js
- you require RFC 4180 compliance for quoted cells, embedded delimiters, and line breaks
- you want automatic or custom type casting of parsed values
- you need to process records incrementally without building a huge array

## When to avoid
- you need streaming from files or network sources rather than in-memory strings
- you need advanced features like async workers, auto-delimiter detection beyond basics, or CSV dialects
- the project appears unmaintained and you need ongoing bug fixes or modern packaging (ESM, TypeScript types)

## Facets
- artifact type: library
- maturity: maintenance
- function: parser, serialization, csv
- domain: files, web-development, developer-tools
- platform: browser, cross-platform
- tags: csv-parser, csv-encoder, rfc-4180, javascript, data-import, data-engineering, nodejs

## Member repositories
- CyrusNuevoDia/CSV.js (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:59.590840+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:31:13.895391+00:00, confidence not recorded.
  - readme: https://github.com/CyrusNuevoDia/CSV.js (fetched 2026-08-28T04:04:59.590840+00:00, sha b576cbf08a08)
- Data as of 2026-08-30T08:39:29.467469+00:00.