Open-source alternatives to Node Xml2js

docx is a JavaScript and TypeScript library for the programmatic generation and manipulation of Word documents. It serves as an OOXML document generator, allowing developers to create formatted office files through code instead of manual editing. The library enables document automation across both Node.js and web browser environments. It supports client-side document export, allowing users to generate and download files directly in the browser without a backend server. Capabilities include the ability to define page layouts, margins, and orientation. Users can programmatically insert documen

This repository contains the HTML specification, which defines the core standards for web page structuring, content organization, and document rendering. It establishes the fundamental algorithms for state-machine-based tokenization, tree construction for the document object model, and origin-based security isolation. The specification provides a framework for defining custom elements with independent lifecycles and registries. It also details the requirements for cross-document communication, session history management, and the synchronization of interface properties with content attributes.

This project is the .NET Base Class Library, providing the foundational types and APIs required for .NET applications. It serves as a cross-platform runtime library and a standardized managed API framework, acting as the primary set of namespaces for memory management, collections, and asynchronous programming. The library enables the development of enterprise backend infrastructure and the execution of managed code consistently across different operating systems and hardware architectures. It includes capabilities for cross-platform application deployment using self-contained binaries, frame

TinyXML-2 is a lightweight C++ library for parsing, manipulating, and generating XML documents. It functions as a UTF-8 XML processor that represents data through a hierarchical Document Object Model. The library provides tools for both DOM parsing and direct document generation via data streams. It includes capabilities for navigating the XML tree to locate specific elements, modifying attributes and content, and resolving character entities and Unicode numeric references into UTF-8 text. The processor includes syntax validation and diagnostic utilities that track line-number metadata for e

SpringSide 4 is an enterprise Java reference architecture and utility library built on the Spring Framework. It provides a pragmatic, best-practice application stack for building RESTful web services, web applications, and data access layers, along with a curated collection of high-performance utility classes for common operations like text, date, collection, reflection, concurrency, and I/O handling. The project distinguishes itself by combining a complete reference application scaffold with production-oriented infrastructure. It includes a JPA-based data access layer that automatically tran

Nokogiri is an XML and HTML parsing library that builds navigable document trees from strings, files, or URLs using native C parsers for speed and standards compliance. It provides a CSS selector engine that translates CSS3 selectors into XPath expressions for querying nodes, an XPath query interface with namespace support, a document manipulation toolkit for modifying parsed documents, XSD schema validation, and XSLT transformation capabilities. The library wraps libxml2 and libxslt C libraries with Ruby bindings for high-performance parsing, and integrates Google's Gumbo parser for standard

This library is a PHP source code tokenizer and static analysis tool that converts raw PHP code into discrete tokens and structured XML representations. It functions as a serializer that transforms token streams into a machine-readable format for programmatic analysis and source tree manipulation. The project uses stream-based XML serialization and fragment-based buffer writing to maintain low memory overhead when processing large files. It allows for custom XML namespace configuration to ensure schema compatibility and avoid naming collisions during the transformation process. The toolkit c

js-yaml is a JavaScript library providing a programmatic interface for parsing and dumping YAML data. It functions as a parser and serializer that converts YAML strings into JavaScript objects and transforms JavaScript objects back into YAML format. The library includes a command-line interface for parsing or dumping YAML data via direct input or data pipes. It also features an abstract syntax tree transformer to modify the structure of data during serialization. The project provides capabilities for multi-document processing and the definition of custom schemas and tags to handle specialize

Fast CSV parser

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

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

parse5 is a WHATWG HTML parser and serializer for Node.js. It transforms HTML strings into a document object model and converts those trees back into valid HTML strings, following the logic defined by the HTML Living Standard. The project functions as a streaming HTML processor, using incremental parsing to handle large documents in chunks. It includes an HTML5 compliant tokenizer that uses a state-machine approach to break input into tokens according to official web specifications. The toolset covers HTML document parsing, serialization, and real-time rewriting via streams. These capabiliti

markdown-it is a token-based Markdown compiler and CommonMark-compliant parser that converts structured plaintext markup into HTML. It functions as an extensible markup processor designed to transform text into browser-ready content while managing security and preventing cross-site scripting. The project is distinguished by a modular plugin system that allows for the extension of parsing capabilities and the addition of custom syntax, such as footnotes, tables, or emojis. It utilizes a two-stage tokenization process to break documents into structural tokens before rendering them into final HT

This project is a PHP archive distribution system designed for hosting and deploying versioned releases. It functions as an installation tool and distribution manager that handles the downloading of archives from remote repositories or URLs into local project directories. The system ensures installation security by acting as an integrity verifier, validating archives using hash checksums and digital signatures. It includes a version resolver that matches requested constraints against available releases to ensure environment consistency. The project manages resource organization through XML m

python-docx is an OOXML document manipulation library used for creating, reading, and updating Microsoft Word files. It functions as a generator for building formatted documents and a parser for extracting text, metadata, and structural elements from existing files. The project provides a comprehensive style management system for defining and applying character, paragraph, and table styles within OpenXML documents. It allows for the programmatic control of document appearance through an object-oriented approach to the underlying XML schema. Capabilities cover a wide range of document generat

RapidJSON is a high-performance C++ library used for parsing and generating JSON data. It provides both document object model and stream-based interfaces to transform JSON strings into structured data and vice versa. The library includes a JSON schema validator to verify that documents conform to predefined rules and a Unicode transcoder for converting strings between UTF-8, UTF-16, and UTF-32 encodings. It also supports relaxed parsing for non-standard JSON containing comments or trailing commas. Additional capabilities cover JSON pointer navigation for locating specific values and string s

XMPPFramework is an Objective-C communication framework and networking library used to build instant messaging applications for Mac and iOS. It provides a programmatic foundation for implementing XMPP clients, managing real-time message exchange, and processing structured XML streams between network endpoints. The framework features a modular plugin architecture and extension system that allows for the integration of custom communication capabilities and protocol extensions into the data stream. It distinguishes itself with specialized support for OMEMO end-to-end encryption and a state-based

The validator repository contains an open-source markup validation engine that checks HTML, CSS, and SVG documents for conformance against official W3C web standards. It operates both as a command-line utility for batch processing local files and remote URLs, and as a standalone web server and HTTP API for browser-based and remote document conformance checking. The software utilizes a rule-based conformance engine and event-driven stream parsing to evaluate document structures, syntax trees, and web accessibility guidelines. It provides URL parsing and normalization utilities that validate i

CherryTree is a hierarchical note-taking application and rich text document editor designed for organizing information within a nested tree of nodes. It functions as a code-integrated documentation tool and an encrypted knowledge base, utilizing SQLite or XML for local data storage. The project distinguishes itself by integrating developer-centric capabilities, such as syntax highlighting and the ability to execute code blocks directly via an external terminal. It also provides password-protected encryption to secure stored data and prevent unauthorized access to the information tree. The so

This is a Go library for reading and writing XLSX files, providing a toolkit for spreadsheet generation and data extraction. It functions as an Office Open XML parser and generator, enabling the creation of workbooks with support for styles, formulas, and metadata. The project features a data mapper that uses Go struct tags and reflection to automatically align spreadsheet rows with structured data. It also includes a validation engine for defining input constraints, such as dropdown lists and error alerts, to control user data entry. The library covers a broad range of capabilities, includi

SVGKit is a graphics framework for the iOS and macOS ecosystems designed for rendering high-performance scalable vector graphics. It functions as a library that utilizes native hardware acceleration to display and interact with vector graphics on Apple platforms. The project provides a programmatic interface for editing vector elements and writing updated files back to disk. It also includes tools to convert vector graphics into rasterized bitmap image formats for use in standard image views. The framework handles the translation of XML-based documents into a hierarchy of hardware-accelerate

EasyExcel is a Java processing library designed for reading and writing XLS, XLSX, and CSV files. It functions as a memory-efficient spreadsheet parser, an object-relational mapper that binds spreadsheet columns to Java class fields, and a stream-based exporter for handling high-volume data. The library distinguishes itself through a streaming model that processes large files row-by-row via listeners to prevent heap memory overflow. It also operates as a template engine, allowing the population of predefined spreadsheet files with dynamic data while preserving original layouts and styles. Br

This project is a PHP implementation of a CSS selector engine that transforms CSS selector strings into compatible XPath expressions for locating elements within documents. It serves as a converter and expression generator that maps CSS selection logic to the XPath query language. The library processes selectors through a pipeline involving lexer-based tokenization and recursive descent parsing to create an abstract syntax tree. It utilizes pattern-matching logic to handle child and sibling relationships, translating CSS pseudo-classes and selectors into functional XPath logic. These capabil

This project is an HTML and XML DOM parser designed for loading and navigating the structure of web documents to extract specific data points. It functions as a web scraping utility that provides a system for locating precise elements using a CSS and XPath selector engine. The library includes a URI resolver that converts relative links found in documents into absolute addresses using a base URI. It provides a set of tools for retrieving text, attributes, and media sources from parsed content. The toolset covers document hierarchy traversal, selector-based filtering, and text extraction with

This project is an Open XML document library and generator used to programmatically create and modify Microsoft Office files. It enables the production of Word, Excel, and PowerPoint documents by manipulating the underlying Open XML structure. The library provides capabilities for Open XML document processing, including the automated modification of existing files and the generation of formatted office reports and spreadsheets for server-side production.

Yowsup is a protocol library and client framework for implementing WhatsApp clients. It provides an interface for sending and receiving multimedia messages, managing group chats, and handling account registration. The project features a modular system for building communication stacks that process encrypted data and network connections. It includes a protocol library to manage messaging, presence states, and account registration, alongside an interactive command line interface for interacting with users and managing contacts. The framework covers a range of communication capabilities, includ

SVGEdit is a browser-based SVG editor and canvas engine used for creating and modifying scalable vector graphics files. It provides a web interface for vector design and functions as an embeddable editor that can be injected into HTML elements within other web applications. The project allows for the development of custom SVG tools and the construction of bespoke vector graphics editors by utilizing its standalone drawing engine.