1Code
1Code is an open-source client application that enables developers to run multiple Claude Code agents in parallel with a calm, keyboard-first UI interface, available for both Mac and Web platforms.
https://1code.dev/?ref=producthunt
Product Information
Updated:Feb 9, 2026
What is 1Code
1Code is a powerful tool developed by 21st.dev that enhances the way developers work with Claude Code agents. It's designed to streamline the development process by providing a more efficient interface for managing multiple coding agents simultaneously. The application comes in both web and macOS versions, offering developers the flexibility to work either locally or in remote sandboxes with live preview capabilities.
Key Features of 1Code
1Code is an open-source application that enables users to run multiple Claude Code agents in parallel with a user-friendly interface. It works on both Mac and Web platforms, offering local execution capabilities, remote sandboxes, live previews, and seamless integration with development workflows. The tool is designed to enhance productivity by allowing simultaneous work on multiple features while maintaining all Claude Code's core functionalities.
Parallel Agent Execution: Run multiple Claude Code agents simultaneously in local environments, worktrees, or background processes for enhanced productivity
Cross-Platform Accessibility: Available on both Mac (local execution) and Web (remote sandboxes) with live preview capabilities including mobile views
Keyboard-First Interface: Comprehensive hotkey support for all actions, enabling mouse-free navigation and management
Integration with Development Workflow: Direct PR creation and merge capabilities within the interface, eliminating the need for context switching
Use Cases of 1Code
Rapid Feature Development: Teams can work on multiple features simultaneously using parallel agents, significantly speeding up development cycles
Remote Development Teams: Distributed teams can collaborate effectively using the web interface and remote sandboxes with live previews
Quality Assurance: Implement automated testing and bug detection through specialized agents that check for issues in new features
Pros
35% more cost-efficient compared to standard development processes
Flexible deployment options (local or web-based)
Full compatibility with existing Claude Code features
Cons
Requires Claude Pro/Max subscription
Premium features locked behind paid tiers
How to Use 1Code
Install Prerequisites: Install Xcode Command Line Tools (for macOS) and Bun runtime environment
Sign in with Anthropic: Connect your existing Claude Pro/Max subscription through your Anthropic account credentials
Install 1Code: Navigate to apps/desktop directory and run 'bun install' to install dependencies
Launch the Application: Run 'bun run dev' to start 1Code with hot reload enabled
Create Agent Sessions: Use the interface to create and run multiple Claude Code agents in parallel - either locally or in worktrees
Use Keyboard Shortcuts: Utilize hotkeys for quick navigation and management of agent sessions without mouse interaction
Review Changes: Check diffs and changes made by agents through the UI
Deploy Changes: Open and merge Pull Requests directly through the 1Code interface
1Code FAQs
1Code is an open source client that provides a user interface for working with Claude Code, allowing users to run multiple code agents in parallel with a calm, keyboard-first interface.
1Code Video
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