Handle Extension

In plain words

Handle Extension is a browser tool that lets developers refine website UI directly in the browser and send changes to coding agents like Claude Code, Cursor, and Codex. Instead of repeatedly describing design changes, users can adjust styling and layout visually, then have those modifications flow automatically into their code. It works with existing coding agents to reduce back-and-forth communication and iteration cycles, keeping changes in sync with live production code.

written from the facts on this page · October 2026

From the sources

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

Handle brings live product design to web apps. Rich visual tools to explore, refine, and land UI changes directly in code with your existing coding agent.

Create, explore, and iterate with your existing coding agent and tools. Use precision tools to adjust styling and layout, consistent with your design system. Handle works with your coding agent to realize the changes in your code. Work directly on live UI, where every change is real—not interpreted, approximated, or re-created later. Stop describing intent through tickets, mocks, or endless re-prompting. Create new UI and adjust layout and styling directly in code. No more lost context or rework. Changes flow straight into code, reducing handoff loss and iteration cycles. Live previews in Handle let you iterate faster and catch edge cases earlier. Refine your web app with visual tools using…from gethandle.ai

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