#csv

Testing TLS/SSL encryption anywhere on any port

Commonly used stream patterns for Web Streams API and NodeJS Streams

Inspection of tabular (csv, xls-like, parquet) files to guess the columns' content

Datagrunt is a Python library designed to simplify the way you work with CSV, Excel, Parquet, and PDF files. It provides a streamlined approach to reading, processing, and transforming your data into various formats, making data manipulation efficient and intuitive.

High-performance Excel and CSV file generation powered by Rust (~7-9x faster)

🦉 Fast Excel import/export for Laravel

Parse bank statements — CAMT/ISO 20022, PAIN.001, CSV (EN/DE/FR/ES), OFX/QFX, MT940, PDFs (digital + scanned) — into unified Transactions. Deterministic parsers, LLM/vision fallback, Golden Rule + multi-currency + continuity verification, page provenance, dedupe, review, accuracy evals, CLI + REST API. 100% test coverage.

Fastest end-to-end CSV ingestion for Ruby (with C acceleration). SmarterCSV auto-detects formats, applies smart defaults, and returns Rails-ready hashes for seamless use with ActiveRecord, Sidekiq, parallel jobs, and S3 pipelines — even for messy user-uploaded real-world data.

Export to plain text, css, html, json, csv, xls, xml files from JSON.

Thoughtfully architected, obscenely fast, thoroughly enjoyable web services for all

Countries, Languages & Continents data (capital and currency, native name, calling codes).

Comma is a small CSV (ie. comma separated values) generation extension for Ruby objects, that lets you seamlessly define a CSV output format via a small DSL

Simple CSV to Markdown Table Converter

Extract one time password (OTP) secrets from QR codes exported by two-factor authentication (2FA) apps such as "Google Authenticator". The exported QR codes from authentication apps can be captured by camera, read from images, or read from text files. The secrets can be exported to JSON or CSV, or printed as QR codes to console.

SQL Runtime without any database

Bulk upload and download of Contentful content (excel/csv/tsv/yaml/json/sql).

🐘 A PHP client for interacting with Gotenberg.

Monorepo for containing the plethora of ilib tools and plugins

A TypeScript CLI tool that reads CSV files and ingests data into GraphQL APIs through configurable mutations.

javascript based business reporting platform :rocket:

Flexible conversion between JSON and CSV

Fast, lightweight, and RFC 4180 compliant CSV library for Java. Zero dependencies, ~90 KiB. Trusted by Apache NiFi, JUnit, and Neo4j.

Export large data sets from your GridField in the Silverstripe CMS interface through async jobs

Code intelligence for humans, machines, and LLMs: receipts, metrics, and insights from your codebase.

🔥 Token-efficient JSON alternative for LLMs & agentic AI — same data, fewer tokens. Python · JS/TS · Rust · Go · C++

SPARQL Anything is a system for Semantic Web re-engineering that allows users to ... query anything with SPARQL.

WebAssembly version of DuckDB

A Blazor component and utility library for mapping uploaded CSV or tabular files to C# objects. Supports header extraction and user-defined property mapping.

Using the Sep CSV library, provides methods for reading and writing CSV files using strongly-typed objects with automatic property mapping and basic type conversion

High-performance Rust-powered Excel writer for Python. Pandas/polars DataFrames and CSV input, with tables, conditional formatting, formulas, and images.