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Top 10 open source projects ranked by GitHub stars or followers

PyTorch
AIWinter 2026
103.1K
Tensors and dynamic neural networks in Python with strong GPU acceleration.
GitHubDocs
2
Claude-Mem
AISpring 2026
94.3K
A persistent memory compression system for Claude Code (and other agents like Gemini CLI, OpenCode, and Codex) that automatically captures session activity, generates semantic summaries, and injects relevant context into future sessions, seamlessly preserving context across sessions.
GitHubDocs
3
OpenCut
Video EditorSummer 2025
90K
Browser-based video editor that feels like CapCut, but open source with over 27k GitHub stars.
GitHubDocs
4
taste-skill
AISpring 2026
88.8K
A collection of portable Agent Skills for AI coding tools (Codex, Cursor, Claude Code) designed to improve AI-generated frontend interfaces with better layout, typography, motion, and spacing. It also includes image-generation skills for producing reference boards like web comps, mobile screens, and brand kits that can then be handed off to coding agents for implementation.
GitHubDocs
5
LobeChat
AISpring 2025
82.7K
Modern AI chat framework with 60k+ stars supporting multiple AI providers, knowledge management, and multimodal plugins.
GitHubDocs
6
Memos
NotesFall 2025
63.2K
Open-source, self-hosted note-taking platform with 44K+ stars and 400+ contributors.
GitHubDocs
7
AI Engineering from Scratch
EducationSpring 2026
55.1K
An open-source, MIT-licensed AI engineering curriculum spanning a total of 503 lessons across 20 distinct phases, covering everything from the math foundations all the way to autonomous agents and production deployment. Each lesson has learners build algorithms from scratch first (in Python, TypeScript, Rust, or Julia) before moving on to using production frameworks, shipping a reusable artifact such as a prompt, skill, agent, or MCP server.
GitHubDocs
8
Marketing Skills
AISpring 2026
51K
A collection of AI agent skills for marketing tasks, designed to help technical marketers and founders use AI coding agents for areas like conversion optimization, copywriting, SEO, analytics, and growth engineering. Works with Claude Code, OpenAI Codex, Cursor, Windsurf, and any agent that supports the Agent Skills spec.
GitHubDocs
9
PixiJS
Developer ToolWinter 2026
48.2K
High-performance 2D rendering engine for the web powering fast, interactive graphics experiences across games, visualizations, and creative tooling.
GitHubDocs
10
jsPDF
PDFSpring 2025
31.3K
First PDF generation library in JS with nearly 2 million weekly npm downloads. Used by NASA.
GitHubDocs
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