https://github.com/nreco/csv

Fast C# CSV parser
https://github.com/nreco/csv

csharp csv csv-parser csv-parsing csv-reader dotnet dotnet-core

Last synced: 9 months ago
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Fast C# CSV parser

• Host: GitHub
• URL: https://github.com/nreco/csv
• Owner: nreco
• License: mit
• Created: 2018-11-27T16:06:48.000Z (about 7 years ago)
• Default Branch: master
• Last Pushed: 2024-08-08T08:05:30.000Z (over 1 year ago)
• Last Synced: 2025-03-28T08:09:31.029Z (10 months ago)
• Topics: csharp, csv, csv-parser, csv-parsing, csv-reader, dotnet, dotnet-core
• Language: C#
• Homepage: https://www.nrecosite.com
• Size: 21.5 KB
• Stars: 147
• Watchers: 9
• Forks: 32
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# NReco.Csv

Ultra-fast C# CSV parser: implements stream reader and writer. 

[![NuGet Release](https://img.shields.io/nuget/v/NReco.Csv.svg)](https://www.nuget.org/packages/NReco.Csv/)

* very fast: x2-x4 times faster than JoshClose's CSVHelper

* memory efficient: uses only single circular buffer, no allocations in heap for CSV of any size

* lightweight: bare csv parser with simple API

* tolerant to not-fully correct CSV files, you can control max length of CSV file (useful for processing end-user CSV uploads)

* can be used for stream processing of many-GB CSV files

* supports all .NET versions: Framework 4.5+, .NET Core, NET6+

## How to use

Parse CSV stream:

```

using (var streamRdr = new StreamReader(inputStream)) {

  var csvReader = new CsvReader(streamRdr, ",");

  while (csvReader.Read()) {

    for (int i=0; i