The breakout star of 2026! A personal AI assistant that runs entirely on your devices. It connects to WhatsApp, Slack, Discord and 50+ apps — and your data never leaves your machine.
AI AgentPrivacyLocal
⭐ 210,000+ stars — fastest-growing OSS project ever
→ GitHub
Run large language models locally on your own computer — Llama, Mistral, and more. No cloud needed. Ollama made local AI accessible to everyday developers.
Local LLMPrivacyEasy Setup
⭐ 130,000+ stars
→ GitHub
The standard framework for building AI-powered apps. Connect language models to tools, databases, and APIs. It's the "plumbing layer" behind countless AI products.
LLM FrameworkAgentsPython
⭐ 105,000+ stars
→ GitHub
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Hugging Face Transformers
AI & ML
State-of-the-art machine learning for PyTorch, TensorFlow, and JAX. The go-to library for NLP, computer vision, and audio tasks. Home of thousands of pre-trained models.
NLPModelsPyTorch
⭐ 140,000+ stars
→ GitHub
Node.js, but 3x faster. Built-in bundler, transpiler, and package manager in one. Bun is going mainstream in 2026 as companies migrate production workloads.
JavaScriptRuntimeFast
⭐ 77,000+ stars
→ GitHub
A Rust-powered toolchain that replaces ESLint, Prettier, and half your build pipeline. 100x faster than ESLint with zero config needed.
LinterFormatterRust
⭐ 18,000+ stars
→ GitHub
A terminal-based AI coding agent by SST. One of the hottest open-source startups of 2025, it lets you code with AI directly from your command line.
Coding AgentTerminalAI
⭐ 98,000+ stars
→ GitHub
An open-source backend platform with APIs for databases, authentication, storage, and more. Build secure apps fast without boilerplate. A Firebase alternative.
BackendBaaSSelf-hosted
⭐ 48,000+ stars
→ GitHub
A self-hostable alternative to Vercel & Heroku. Deploy static sites, databases, and 280+ services on your own servers. No vendor lock-in!
PaaSSelf-hostedDeploy
⭐ 40,000+ stars
→ GitHub
The open-source Firebase alternative. Postgres database, authentication, instant APIs, edge functions, realtime subscriptions, and storage. Everything you need.
DatabaseAuthRealtime
⭐ 78,000+ stars
→ GitHub
Open-source workflow automation with 400+ integrations. Visual no-code editor + custom code flexibility. Perfect for AI workflows and internal tooling.
WorkflowsNo-codeAI Ready
⭐ 65,000+ stars
→ GitHub
An agentic skills framework and software development methodology that actually works. Build, test and deploy AI-powered developer workflows.
AgenticSkillsDevOps
⭐ 85,000+ stars — trending #2
→ GitHub
A cross-platform open-source video editor. One of the fastest-growing repos of 2025 with massive developer interest in open creative tooling.
Video EditorCreativeFree
⭐ 43,000+ stars
→ GitHub
Blender 5.0 just dropped! Major update to the world's most powerful free 3D creation suite. New features for movies, games, VR, and art. Rivals $3,000+ software.
3DAnimationFree
⭐ 18,000+ stars — free forever
→ blender.org
📝
AppFlowy
Creative & Productivity
The open-source Notion alternative with AI. Collaborative workspace for project management and docs — with 100% data ownership.
WorkspaceNotesAI
⭐ 62,000+ stars
→ GitHub
🔌
MCP (Model Context Protocol)
LF — Agentic AI Foundation
The universal standard for connecting AI models to tools, data, and apps. Created by Anthropic, now under the Linux Foundation. Over 10,000 MCP servers deployed!
AI StandardLF AAIFAnthropic
⭐ Key LF project — universal adoption
→ GitHub
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Goose
LF — Agentic AI Foundation
An open-source AI agent under the new Agentic AI Foundation. Goose can research, code, browse, and automate tasks using AI autonomously.
AI AgentLF AAIFCoding
⭐ LF founding project — Dec 2025
→ GitHub
⚛️
React Foundation
LF — New in 2025
React joined the Linux Foundation! The world's most popular frontend framework now has a neutral, open governance home for long-term sustainability.
FrontendMetaWeb
⭐ 235,000+ stars — most popular UI library
→ React Foundation
🍎
Newton Physics Engine
LF — New in 2025
Contributed by Disney Research, NVIDIA, and Google DeepMind. A powerful open-source physics simulation engine for games, research, and visual effects.
PhysicsDisneyNVIDIA
⭐ New LF project — contributed Oct 2025
→ Linux Foundation
☸️
Kubernetes (CNCF)
LF — Cloud Native
The king of container orchestration. KubeCon Europe 2026 is happening now in Amsterdam! The cloud-native ecosystem keeps expanding with AI-native additions.
ContainersCloudCNCF
⭐ 115,000+ stars
→ GitHub
The leading deep learning framework. Used by researchers and companies worldwide. PyTorch Conference Europe 2026 is coming soon as part of the LF events lineup!
Deep LearningResearchGPU
⭐ 88,000+ stars
→ GitHub
🌬️
Zephyr RTOS
LF — Embedded / IoT
A real-time operating system for tiny devices — smartwatches, sensors, robots. Now with Raspberry Pi support and a growing ecosystem of 600+ boards!
IoTEmbeddedRTOS
⭐ 12,000+ stars — v4.3 released
→ GitHub
Master programming by recreating your favorite technologies from scratch. Build your own Git, Docker, database, game engine, and more. The #1 most-starred GitHub repo!
#1 on GitHubLearnDIY
⭐ 475,000+ stars — #1 globally!
→ GitHub
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Developer Roadmaps
Learning
Interactive roadmaps for web, mobile, DevOps, AI, and more. Visual guides that show you exactly what to learn and in what order. Updated for 2026!
RoadmapsCareerGuide
⭐ 310,000+ stars
→ GitHub
Learn math, programming, and computer science for free. A complete open-source curriculum used by millions. Certificates included!
Free CoursesCertificatesWeb Dev
⭐ 415,000+ stars
→ GitHub
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