Top PARSER GitHub Repositories & Tools (2026)

Get your documents ready for gen AI

Turn any PDF or image document into structured data for your AI. A powerful, lightweight OCR toolkit that bridges the gap between images/PDFs and LLMs. Supports 100+ languages.

iOS/macOS Research Swiss Army Knife

The #1 AI Harness for Building Resumes, PDFs, Cover Letters & more, locally with 100+ LLMs support.

Source 2 Viewer is an all-in-one tool to browse VPK archives, view, extract, and decompile Source 2 assets, including maps, models, materials, textures, sounds, and more.

Open-source IFC toolkit: WebGPU rendering, columnar in-memory store, exact-arithmetic geometry kernel. Runs from a CDN. 30+ TypeScript packages and 5 Rust crates.

🔬 A Swift library for parsing mach-o files to obtain various information.

An incremental parsing system for programming tools

Fast Rust library for PDF inspection, classification, and text extraction. Intelligently detects scanned vs text-based PDFs to enable smart routing decisions.

A PHP parser written in PHP

A bidirectional Markdown to HTML to Markdown converter written in Javascript

A cross-platform .NET library for IMAP, POP3, and SMTP.

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

Lightweight and fast library written in C# for reading Microsoft Excel files

Full featured CSV parser with simple api and tested against large datasets.

Fast, portable, non-Turing complete expression evaluation with gradual typing (Go)

A Parser for CSS Files written in PHP. Allows extraction of CSS files into a data structure, manipulation of said structure and output as (optimized) CSS

FeedKit is a Swift library for Reading and Generating RSS, Atom, and JSON feeds.

A Bash CLI framework, also a Bash command runner.

A modern C++ CSV parser and serializer that doesn't make you choose between ease of use or performance.