Helpers to deal with CSV format
fast-csv formatting module
CSV parser and writer
CSV parsing implementing the Node.js `stream.Transform` API
fast-csv parsing package
CSV stringifier implementing the Node.js `stream.Transform` API
Streaming CSV parser that aims for maximum speed as well as compatibility with the csv-spectrum test suite
A mature CSV toolset with simple api, full of options and tested against large datasets.
A JSON to CSV and CSV to JSON converter that natively supports sub-documents and auto-generates the CSV heading.
CSV and object generation implementing the Node.js `stream.Readable` API
Fast and powerful CSV parser for the browser that supports web workers and streaming large files. Converts CSV to JSON and JSON to CSV.
Convenient parsing for Fetch.
Convert objects/arrays into a CSV string or write them into a CSV file
TypeScript definitions for react-csv
Object transformations implementing the Node.js `stream.Transform` API
Advanced Data Grid / Data Table supporting Javascript / Typescript / React / Angular / Vue
A tool concentrating on converting csv data to JSON with customised parser supporting
Easily create CSV data from json collection
Power Assert in JavaScript
Build CSV files on the fly basing on Array/literal object of data
Power Apps SDK
Fast CSV parser
Power Assert output formatter
Power Assert feature enhancer for assert function/object
Fast CSV using Rust extensions.
A more powerful CSV file processor
A Rails Engine wrapping SmarterCSV for CSV importing with three-tier AI header matching (lookup + vector similarity + LLM fallback), batch processing, and import tracking. Only headers are sent to AI — row data never leaves your application.
Poorman's Export is a simple but powerful CSV and XLS exporter
A powerful Rails responder to create Excel & CSV files with ease
Drop into a powerful REPL to inspect your Json, CSV, and HTML files.
LiquiDoc conveniently harnesses the power of Liquid templates, flat-file data formats such as YAML, JSON, XML, and CSV, as well as AsciiDoc markup and powerful Asciidoctor output capabilities -- all in a single command-line tool.
Simple yet powerful library for importing tabular data from CSV, HTML, XLS and XLSX files, including support for auto-detecting column order, parsing/validating cell data, aggregating errors, etc.
Switch helps you add multiple languages to your site by leveraging the power of google spreadsheets. It is a commandline tool providing you with an easy way to automate the process and avoid common mistakes. The most common use case of switch is for switching between a locale representation in JSON/YAML to a CSV (spreadsheet) based one and vice-versa. # Install ``` gem install switch-cli ``` # Usage ``` switch json2csv [input-dir] [output-file] ``` Converts multiple json files to be a single csv file with columns for each file, with the file name as the column header. If you do not specify an input-dir it will be taken as ./locales and output-file would be the direcotry name + .csv. ``` switch csv2json [input-file] [output-dir] ``` Converts a single csv file into multiple json files, with a file for each column using the key and order columns to construct the files.
ChatManager is a Rails engine that provides chat management, automatic title generation from initial prompts, and CSV export for individual or bulk chat downloads. It includes UI components with Stimulus-powered inline title editing and a database migration generator.
A simple yet powerful tool to analyze method usage in Ruby/Rails codebases. Track which methods are called most frequently, filter by receivers or method names, and export results in table, JSON, or CSV format. Perfect for understanding code patterns, refactoring decisions, and identifying heavily-used APIs.
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