Package

fast-csv

CSV parser and writer

v5.0.7, 6 May 2026MITCommonJSTypes: BundledParsers and serialisers

$ npm install fast-csv

npm GitHub Homepage

Key numbers

As of 25 Sept 2026

Weekly downloads: 11.6m; +295% over 12 months
Gzip bundle size: -; No Bundlephobia data
Dependencies: 2; Direct, from package.json
Last release: 4 months ago; v5.0.7
GitHub stars: 1.8k; 221 forks
Open issues / PRs: 50 / 21
Contributors: -
Commits, last 52 weeks: 66

Downloads

Last week 2026-09-15 to 2026-09-21

Weekly npm downloads, one point per week, weeks starting 23 Sept 2025 to 15 Sept 2026. The y axis starts at zero.

11,646,787 downloads last week, 55,531,792 in the last month. The 12-month change of +295% compares the average of the last 4 weeks with the first 4 weeks of the series.

Maintenance

Releases, last 12 months: 175 in total
Latest version: 5.0.7, 6 May 20264 months ago
First published: 12 Sept 2012
Last push to GitHub: 24 Sept 2026same day as the snapshot
Repository archived: No
Open issues: 50
Open pull requests: 21
Commits, last 52 weeks: 66
Dependents on npm: 961

Major versions

v5 first release 5.0.0, 13 Jan 2024
v4 first release 4.0.0, 26 Dec 2019
v3 first release 3.0.0, 11 Jun 2019
v2 first release 2.0.0, 28 Apr 2016
v1 first release 1.0.0, 5 Jan 2016
v0 first release 0.0.0, 12 Sept 2012

Recent releases

Version	Published
5.0.7	6 May 2026
5.0.5	4 Aug 2025
5.0.2	22 Oct 2024
5.0.1	13 Feb 2024
5.0.0	13 Jan 2024
4.3.6	4 Dec 2020
4.3.5	3 Nov 2020
4.3.4	3 Nov 2020
4.3.3	30 Oct 2020
4.3.2	2 Sept 2020
4.3.1	23 Jun 2020
4.3.0	27 May 2020
4.2.0	19 May 2020
4.1.6	15 May 2020

Compatibility

Module format: CommonJSFrom package.json type, main and exports fields
TypeScript types: Bundled
Node.js engine range: >=10.0.0
Runtimes: -
Unpacked size (npm): 6.9 kB
Dependencies (2): @fast-csv/parse@fast-csv/format

Install

npm install fast-csv

CDN

jsDelivrhttps://cdn.jsdelivr.net/npm/fast-csv@5.0.7/
unpkghttps://unpkg.com/fast-csv@5.0.7/
esm.shhttps://esm.sh/fast-csv@5.0.7

Alternatives

Package	Weekly downloads	Gzip	Last release	Module	Comparison
csv-writer Convert objects/arrays into a CSV string or write them into a CSV file	1m	-	6 years ago	CommonJS	-
csv-parse CSV parsing implementing the Node.js `stream.Transform` API	13.7m	-	1 month ago	ESM + CommonJS	-
react-papaparse 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.	224.9k	-	2 years ago	ESM + CommonJS	-
smol-toml A small, fast, and correct TOML parser/serializer	24.7m	-	2 days ago	ESM + CommonJS	-

Sources: npm registry, npm downloads API, GitHub API. Data fetched 25 Sept 2026.

Indexability: Indexed.