#parser

Get and validate the raw body of a readable stream

A pure Rust Excel/OpenDocument SpreadSheets file reader: rust on metal sheets

Scala grammar for tree-sitter

PHP library to read and extract text & images from PDFs - Fast & Low memory - Built from scratch

A tool that parses emails by enhancing the Python standard library, extracting all details into a comprehensive object.

Rust implementation of Amazon Ion

Multi-protocol passive fingerprinting library: TCP/HTTP (p0f-style) + TLS (JA4-style) analysis in Rust

Generate changelogs and release notes from a project's commit messages and metadata.

2D and 3D physics engines focused on performance.

A tool set for CSS including fast detailed parser, walker, generator and lexer based on W3C specs and browser implementations

GeoStyler-Style-Parser implementation for SLD

A robust, strictly-typed Node.js and Browser library for parsing office files into a rich Abstract Syntax Tree (AST) and generating high-fidelity output in multiple formats. Parses: docx · pptx · xlsx · odt · odp · ods · pdf · rtf · csv · md · html. Generates: Markdown · HTML · CSV · RTF · PDF · Plain Text · RAG Chunks

📝 Markdown and HTML renderer for Svelte 5 — built for streaming AI agent output from Claude Code, ChatGPT, and agentic workflows. XSS-safe defaults, token caching, TypeScript types.

A unified, high-performance i18next CLI.

Parse feeds in Python

LR(1) parser generator for Rust

HCL parsing and encoding libraries for rust with serde support

A PHP parser written in PHP

URL parser for Rust

Comprehensive tree-sitter grammar compilation with polyglot bindings — Rust, Python, Node.js, Go, Java, Ruby, Elixir, PHP, C#, WASM, Dart, Kotlin-Android, Swift, Zig, and CLI. 371 languages.

A dbt artifacts parser in python

Gherkin parser, written in PHP for Behat project

PurRDF — one RDF 1.2 engine, one behavior, every language: interned primitives, Turtle/TriG/N-Quads/RDF-XML/JSON-LD codecs, RDFC-1.0, SPARQL 1.1/1.2, SHACL Core, GTS graph transport, and Python/WebAssembly/C bindings.

JSqlParser parses an SQL statement and translate it into a hierarchy of Java classes. The generated hierarchy can be navigated using the Visitor Pattern

Stop feeding broken Markdown to your AI. A deterministic Logseq parser that preserves parent-child context for RAG, plus a 60FPS visualizer 👓 , plus writer ✍️ append only

A fast, lightweight HTML to Markdown converter optimized for LLM consumption. Uses proven parsing libraries to deliver clean, well-structured markdown with intelligent content extraction and noise filtering.

Embeddable spreadsheet engine - parse, evaluate & mutate Excel workbooks from Rust, Python, or the browser. Arrow-powered, 400+ functions.

a browser detector

Parse and execute ipynb files in Sphinx

Lark is a parsing toolkit for Python, built with a focus on ergonomics, performance and modularity.