#1 PDF Application on GitHub that lets you edit PDFs on any device anywhere

Apple's approach to interface design and fluid, physical motion, translated for the web. Use when building or reviewing gesture-driven UI, spring animations, drag/swipe/sheet interactions, momentum and interruptible transitions, translucent materials and depth, typography (optical sizing, tracking, leading), reduced-motion, or the design foundations (feedback, spatial consistency, restraint) behind Apple-style interfaces.

The Cursor for Designers • An Open-Source AI-First Design tool • Visually build, style, and edit your React App with AI

A tool that lets AI agents like Claude Code edit videos by cutting filler words, color grading, adding subtitles, and more, all via natural language commands.

A Codex skill for generating minimal zine-style editorial poster prompts and images.

Desktop app that records your on-screen work session and uses the GitHub Copilot CLI to reconstruct it as an intent + ordered steps, then builds a reusable Skill or Automation for Microsoft Scout, Microsoft Copilot Cowork, or Copilot Studio.

OfficeCLI is the first and best Office suite purpose-built for AI agents to read, edit, and automate Word, Excel, and PowerPoint files. Free, open-source, single binary, no Office installation required.

A comprehensive C code style guide packaged as an AI agent skill with clang-format integration, enabling agents to write, edit, and format C code consistently.

Train, inspect, edit, automate, and export 3D Gaussian Splatting scenes from a single native application.

Outstatic - A Static Site CMS for Markdown. A dashboard to write, edit, and publish Markdown and MDX stored in your GitHub repository.

Crabbox: warm a box, sync the diff, run the suite.

iText for Java represents the next level of SDKs for developers that want to take advantage of the benefits PDF can bring. Equipped with a better document engine, high and low-level programming capabilities and the ability to create, edit and enhance PDF documents, iText can be a boon to nearly every workflow.