Open Source AI

Open-source, local-first AI voice studio — clone a voice from a few seconds of audio, generate speech across seven TTS engines, dictate into any app, and give MCP-aware agents (Claude Code, Cursor, Cline) a voice of their own. A free, on-device alternative to ElevenLabs and WisprFlow for macOS, Windows and Linux. MIT-licensed.

An open-source JavaScript in-page GUI agent from Alibaba. Drop a single script tag on any website and it adds an AI assistant that reads and controls the page through the DOM from natural-language instructions — clicking, filling forms, navigating and explaining as it goes. Works with any OpenAI-compatible model (Qwen/DashScope, OpenAI, DeepSeek, Gemini, Ollama) and ships a free demo model so you can try it instantly. See the attached user guide for a step-by-step, toggle-launcher implementation.

A self-hosted personal AI assistant that lives in the apps you already use — WhatsApp, Telegram, Slack, Discord, iMessage and more — running locally on your own machine around the clock. Message it from your phone to manage calendar, email, research and tools with your own model key. `npm install -g openclaw@latest`.

An agent-harness optimization system for Claude Code (also Codex, OpenCode, Cursor): adds skills, persistent memory, security scanning and a research-first, test-before-you-ship workflow, so the agent stops committing broken code and remembers your project between sessions. Handy commands include /ecc:plan, /analyze-repo and `npx ecc-agentshield scan`.

"Skills for real engineers, not vibe coding" — the skills Matt Pocock uses daily, straight from his .claude directory. They make Claude less reckless: ask sharp questions before building, do proper test-first development, and keep code maintainable. Leans TypeScript/JavaScript. Install with `npx skills@latest add mattpocock/skills`.

Garry Tan's opinionated Claude Code setup — 23 tools that turn one agent into a virtual startup team: CEO, engineering manager, designer, reviewer, QA and release manager. Run work through a sprint with commands like /office-hours, /plan-eng-review, /review, /qa and /ship.

Turns any folder — code, SQL schemas, shell/R scripts, docs, papers, even images or video — into a queryable knowledge graph, so your coding agent queries a map instead of re-reading every file each session. Cuts token usage sharply on large codebases. Works with Claude Code, Codex, Cursor, Gemini CLI and more.

ByteDance's open-source long-horizon "SuperAgent" harness for big, multi-step jobs (deep-research reports, dashboards, slide decks). A lead agent splits the task across parallel sub-agents that run real code in a sandbox with their own memory and filesystem, then stitches the deliverable together. Docker-based and model-agnostic.

Vercel Labs' browser-automation CLI for AI agents — lets a coding agent drive a real browser (navigate, click, fill forms, extract data) straight from the command line, so agents can use the web the way a person would.

Open-source agentic video production for your AI coding assistant: describe a video and it researches, scripts, narrates, sources or generates visuals, edits the timeline and renders a finished MP4. 12 pipelines (cinematic trailers, explainers, real-footage documentaries) with a free local path. Needs Python, Node.js and FFmpeg.

Garry Tan's opinionated agent "brain" — a memory layer for people, companies, meetings and notes that synthesizes cited answers (e.g. "what should I know before my meeting with Alice?") instead of just returning links. Runs locally in about 30 seconds, or scales to a full auto-updating stack. Plugs into Claude Code via MCP.

817 structured cybersecurity skills for AI agents across 29 domains — malware analysis, threat hunting, cloud breaches, incident response — each a playbook mapped to frameworks like MITRE ATT&CK, NIST CSF and MITRE ATLAS. Install only the domain you need to avoid context bloat. `npx skills add mukul975/Anthropic-Cybersecurity-Skills`.

From the browser-use team: edit videos with coding agents. Point your AI agent at footage and drive edits programmatically, bringing the browser-use agent approach to video editing.

NVIDIA's security scanner for AI-agent skills. Point it at a skill before installing and it flags hidden instructions, prompt injection, data exfiltration and over-broad permissions, returning a 0-100 safety score. A cited study found roughly a quarter of skills had a vulnerability — scan first, install second.

The open-source managed agents platform — turn coding agents into real teammates: assign tasks, track progress, and compound skills.