Repository Index

FlatBuffers: Memory Efficient Serialization Library

• flatbuffers
• serialization
• serialization-library
• json-parser

🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.

• data-format
• llm
• serialization
• tokenization

Fast and powerful CSV (delimited text) parser that gracefully handles large files and malformed input

• csv
• javascript
• csv-parser

Apache Thrift

• d
• thrift
• cplusplus
• dart

High-performance Protocol Buffers for JavaScript and TypeScript. Conformant through Edition 2026, and unusually versatile. No protoc required.

• javascript
• typescript
• protobuf
• protocol-buffers

JSON in JavaScript

Parse and stringify URL query strings

• query-string
• urlsearchparams
• url
• stringify

JavaScript YAML parser and dumper. Very fast.

XML to JavaScript object converter.

• coffeescript
• parsing
• xml-parser
• xml

A streaming approach to JSON. Oboe.js speeds up web applications by providing parsed objects before the response completes.

A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.

• cross-language
• fast
• jit
• multiple-language

HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.

• html-parsing
• html
• html5
• serialization

CSV data manipulation made easy in PHP

• php
• csv-document
• csv-converter
• csv-filter

C library for encoding, decoding and manipulating JSON data

• c
• json

Validate XML, Parse XML and Build XML rapidly without C/C++ based libraries and no callback.

• fast-xml-parser
• xml2json
• xml2js
• fast

Feather: fast, interoperable binary data frame storage for Python, R, and more powered by Apache Arrow

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.

• csv
• csv-converter
• csv-export
• csv-file

MLeap: Deploy ML Pipelines to Production

• scikit-learn
• spark
• data-pipelines
• transformers

An ActionScript 3 Library that contains a number of classes and utilities for working with ActionScript? 3. These include classes for MD5 and SHA 1 hashing, Image encoders, and JSON serialization as well as general String, Number and Date APIs.

Streaming csv parser inspired by binary-csv that aims to be faster than everyone else

CoffeeScript-Object-Notation. Same as JSON but for CoffeeScript objects.

• cson
• coffeescript
• json
• data-format

A sax style parser for JS

ini file parser

A library for reading text files over multiple cores.