A free local toolbar for React apps that lets you point, drag and tweak the live interface in your browser, with your own coding agent applying the changes.

ilse homepage with live demo
1 / 2Overview
What is ilse?
Point at your app and your AI agent changes the code
ilse is a free, local toolbar for refining a React app that is already running, with the coding agent you already use. Run one command in your project folder and a toolbar sits on top of your app in the browser: click an element and say what should change, drag to reorder, resize, or tweak spacing and colors with your own design tokens. Simple tweaks land instantly with few or zero tokens; the rest goes to your agent — Claude Code, Codex, Cursor CLI, Gemini CLI, or any agent that speaks MCP — pointed at the right file and line.
ilse is not a generator: it does not create apps from scratch. It is for when the code already exists and lives on your machine. It works with React apps on Next.js, Vite, Remix, Astro and CRA, and it never touches an API key or sends your code to a server.
The core is free forever under a PolyForm Shield license. Pro adds test mode — ilse walks real user journeys on its own and reports accessibility, errors and layout issues — as a $49 one-time founder pre-sale, shipping by November 30, 2026, with 12 months of updates.
Platforms and languages
ilse Availability
Platforms
Languages
Capabilities
ilse Key Features
Point and say
Click an element, write what should change. The note reaches your agent already pointing at the right file and line.
Property panel
Adjust spacing, size, type and color with your own project tokens. Simple tweaks land instantly and spend few or zero tokens.
Move, resize and edit live
Drag to reorder, resize and edit text in the running app. The page reacts live and your agent makes it real in the code.
Component library
Ilse reads your components and writes your design system to a Markdown file, so your agent stops inventing new buttons.
Local and private
No extension, no app, no account. It runs on your machine, never touches an API key, and sends your code to no server.
Best for
Who uses ilse?
React developers and design engineers refining a live app
Point, drag and tweak the interface in the browser and let your own coding agent apply the changes in your repo
Plans and access
ilse Pricing
Freemium
Core free forever; Pro test mode $49 founder pre-sale (one-time, ships by Nov 30, 2026)
Common questions
ilse FAQs
Is ilse really free?
Yes, and what is free never becomes paid. The license is PolyForm Shield: free to use, including at work, just not to build a competing product.
Does my code leave my machine?
No. ilse runs locally with the agent you already have, stores no keys and sends your code to no server.
Which agents does ilse work with?
Claude Code, Codex, Cursor CLI, Gemini CLI, or any agent that speaks MCP.
How does Pro work?
Pro is test mode plus Library hands, as a one-time purchase with 12 months of updates. When that ends, you keep using the version you have.
What if test mode ships late?
Pro is in founder pre-sale and ships by November 30, 2026. If it does not, you are refunded.
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