Green Tea

Why another notes app?

I'm a marketer, not an engineer by training. But I've been coding on the side, and along the way I discovered that the coding agents developers use to write software are incredibly good at marketing and sales work too. Competitor research, campaign briefs, content generation, daily briefings, pipeline analysis. These agents can do all of it.

The problem was there was no simple way to use them. Every tool required a terminal and technical setup. So I built Green Tea, an open source AI workspace with a professional-grade coding agent built in, designed for people like me. It's free, it runs entirely on your own machine, and the source is public so you never have to wonder what it does with your data. I use it every day for my own work. Hopefully you'll find it just as useful.

Your data. Your rules.

Green Tea is open source and local-first. Your notes, files, and everything your AI agent works on lives entirely on your machine. There's no cloud component, no account to create, and no data leaving your computer unless you tell it to.

Because the source is public, anyone can audit exactly what the app does. Nothing trains on your notes, nothing is locked behind a vendor, and it works fully offline. Your work is yours.

A notes app that builds itself.

Ask Green Tea to build you a new skill and it will. Need a tool that pulls your Google Analytics data into a weekly summary? Tell it. Want an automation that monitors competitor pricing and flags changes? Just describe it. Green Tea's AI agent can write its own tools, right inside the app.

You can also connect MCP servers to bring in external data sources, APIs, and services. It's the same extensibility that developers rely on, but you never have to touch a terminal. Green Tea opens up an entire coding world to non-technical users, letting you build exactly the workflows you need without writing a line of code yourself.

Your AI coworker never sleeps.

Set up scheduled tasks that run on autopilot. Pull a daily morning briefing from your calendar and email, compile meeting action items after every standup, or track industry news on topics you care about. Green Tea handles it on a schedule you define.

Every task runs locally on your machine, writes directly into your notes, and is ready for you when you sit down to work. No dashboards to check, no tabs to keep open. Just the information you need, exactly when you need it.

Research, write, publish — without leaving your notes.

Green Tea closes the whole loop in one place. Ask it to research a topic, turn the result into a report, dashboard, or set of slides, and publish it to a live, interactive link — all without touching a separate design, deck, or hosting tool.

Instead of emailing a static PDF, you hand a client or colleague a URL they can actually explore. The artifact is generated from your notes and stays in your workspace, so it's always yours to update.

Use any AI model you want.

Green Tea is model agnostic. Out of the box it's powered by leading open-source models so you can start working immediately, no API key required.

Want more power or a specific provider? Bring your own Anthropic, OpenAI, or OpenRouter key and unlock dozens of other models. You pay your provider directly with no markup, you control exactly which model sees your data, and you can switch anytime. You're never locked in.

Try Green Tea today.

Free, open source, and no account required.