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Handle Extension

Handle Extension

Refine UI in the browser, feed changes to your coding agent

Website gethandle.ai
Overview

What it is

Point and fix. Refine UI directly in your browser instead of endlessly re-prompting your agent. Works with Claude Code, Codex, Cursor and others.

Intent

I need it when

Integrate visual design work into existing coding agent workflows without switching tools

Handle works as a Chrome extension add-on or Studio desktop app that connects directly to supported coding agents (Claude Code, Cursor, GitHub Copilot, etc.). Users invoke design changes via /handle command and the agent realizes changes in code, keeping the workflow unified.

Reduce design-to-development translation overhead and rework cycles

By allowing designers to work directly on live code rather than creating mocks or tickets, Handle eliminates the need for re-prompting and re-interpretation. Changes flow straight into code, reducing handoff loss and iteration cycles.

Design UI directly in production code without context loss between design and development

Handle lets design engineers and product designers work live on UI in their web app, making visual changes directly in code through a Chrome extension or macOS Studio app. This eliminates handoff gaps, reduces rework, and keeps design intent intact from creation to implementation.

Iterate on styling and layout with precision tools while seeing real-time previews

Handle provides visual tools to select elements, adjust styles, and refine layout directly on live UI. Real-time previews let users catch edge cases earlier and iterate faster than traditional design-to-code workflows.

Drop

Not a fit when

  • User needs to design for non-web platforms (mobile native apps, desktop applications outside web context)
  • User works with design tools that do not integrate with coding agents (Figma-only workflows without agent support)
  • User requires design collaboration features for non-technical stakeholders or design teams
  • User needs to design on Windows (Studio app is macOS only)
  • User works with coding agents not in the supported list (Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Rovo Dev, Windsurf)
Commercials

Pricing

Freemium: Chrome Extension and Studio desktop app are free and open source. No account required.