Introduction

Remixlet is a browser extension that makes websites work the way you always wanted them to. Tell it what to change. It studies the page, writes a small reusable script we call a remixlet, and applies it on the spot.

How it works#

Remixlet puts an AI coding agent inside your browser. Open the side panel on any website and describe what you want: hide listings you have already dismissed, remove the autoplaying videos, add the filter the site never had, fix the one missing link that would save you a few minutes every day.

The agent studies the live page, writes a small site-specific modification, and applies it. The change is still there the next time you visit. If it is not quite right, tell Remixlet what to fix. If something breaks, toggle the remixlet off or undo it in one action.

A remixlet only changes what your browser renders. The site itself is never touched.

What a remixlet is#

A remixlet is readable code with its own version history. It lives in your browser as a small folder: a manifest saying where it runs and what it needs, a script, a stylesheet, and a README explaining what it is for. You can inspect it, edit it, or remove it whenever you want, and every activation is a snapshot you can roll back to.

Anatomy of a remixlet walks through the folder. The rmx API lists what the code inside it can call. Security architecture explains what keeps AI-written code in check.

Where everything lives#

There is no Remixlet account, server, or companion app today. Your remixlets, their history, your conversations, and your settings stay in your browser. Page content goes to the AI provider you chose while the agent is working, and nowhere else. A finished remixlet runs locally and does not contact the provider at all.

Your data and privacy spells this out, and the privacy policy states it formally.

Bring your own AI#

Remixlet ships no models of its own. Sign in with an AI subscription you already pay for, use your own API keys, or point it at a local model. Requests go straight from your browser to that provider, with nothing in between.

Browsers and AI providers lists what is supported today.

Open source#

The whole extension is public code, so anyone can check what actually runs in their browser. The source is on GitHub for anyone to keep and improve.