# BurntSushi/rust-csv

A CSV parser for Rust, with Serde support.

Repository: https://github.com/BurntSushi/rust-csv
Canonical: https://ross.abutalabs.com/products/rust-csv
Language: Rust
License: Unlicense
License Family: permissive
Topics: csv, library, rust, rust-library
Last push: 2026-08-04T10:45:35+00:00

## Health v2 (maintenance only)
Score: 75/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 96, release rhythm 35, longevity 100
- inputs: {"age_days": 4547, "days_push": 29, "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 1956, forks 255 (observed 2026-08-28T04:05:59.024483+00:00)

## What it is
A fast and flexible CSV reader and writer library for Rust with first-class Serde deserialization/serialization support. It is the de facto standard CSV crate in the Rust ecosystem.

## Use cases
- parse csv files in rust
- read csv into rust structs with serde
- write csv data from rust
- stream large csv files efficiently
- deserialize csv records with optional fields

## When to choose
- you need high-performance CSV parsing in Rust
- you want automatic mapping between CSV rows and Rust structs via Serde
- you need flexible handling of quoting, delimiters, and malformed data

## When to avoid
- you need full spreadsheet formats like Excel xlsx
- you work in a language other than Rust

## Facets
- artifact type: library
- maturity: stable
- function: parser, serialization
- domain: developer-tools, files
- platform: rust, cross-platform
- tags: csv, serde, reader-writer, data-processing, data-engineering

## Member repositories
- BurntSushi/rust-csv (main) score 75

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:59.024483+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 2026-08-30T03:06:13.008077+00:00, confidence not recorded.
  - readme: https://github.com/BurntSushi/rust-csv (fetched 2026-08-28T04:05:59.024483+00:00, sha d9b838c5fc5d)
- Data as of 2026-08-30T08:39:29.467469+00:00.