PDFCraft is a free, privacy-focused PDF toolkit
The lxml XML toolkit for Python
Library to parse and emit YAML, and do it fast
A web-based tool to view, edit, format, and validate JSON
Turn any technical book PDF into a Claude Code skill
Java library that allows matching many thousands of Events per second
JSON Lint for PHP
Display PDFs in your React app as easily as if they were images
JWT Framework
A user-interface library, formerly known as text, for Minecraft
Fast JSON parser and validator for Go
TreeFrog Framework, High-speed C++ MVC Framework for Web Applications
Open Source UI Kit built on top of Bootstrap 5 and plain JavaScript
BSON Parser for node and browser
A simple tool for reading in poorly redacted documents
From community websites to web applications, this CSS framework
Generate dashboards, widgets, apps, and data visualizations
Vue 3 UI library, highly customizability, full TypeScript, performance
Lexbor is development of an open source HTML Renderer library
Repair invalid JSON documents
A PHP library to support implementing representations
Web Framework built on top of Qt, using the approach of Catalyst
The classless CSS reset (perfect for Communists)
Laravel package to generate PDF invoices from customizable parameters
C++ Qt ORM (Object Relational Mapping) and ODM library