Yardlet

Free, open-source Mac app that runs the coding-agent CLIs you already use — Codex, Claude Code, OpenCode and more — side by side under one sidebar, composer and approval cards.

Open Source Coding & Development
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What is Yardlet?

Yardlet puts the coding-agent CLIs you already use — Codex, Claude Code, OpenCode and more — side by side under one sidebar, composer and approval cards.

Agents can hand work to each other, sessions stay in each agent's own store, and it is free and open source under MIT for macOS 15 or later on Apple silicon — you still pay for the agents' own plans.

Key features

  • Side-by-side agent CLIs — Codex, Claude Code, OpenCode and more
  • One sidebar, composer and approval cards for every agent
  • Agent-to-agent handoffs
  • Sessions kept in each agent's own store
  • Homebrew install, plus a phone companion app that pairs by QR code

Pros

  • One window for every agent CLI, instead of a terminal per agent
  • Agents hand work to each other without copy-paste
  • Sessions stay in each agent's own store
  • Free and open source under MIT

Cons

  • macOS 15 or later on Apple silicon only — Windows and Linux are explicitly not available
  • You still pay for each agent's own plan

Yardlet at a glance

PricingOpen Source
CategoryCoding & Development
Platformsmac
CompanyYardlet
Best forMac developers running several coding agents at once who want one window for all of them
Official websiteyardlet.app
coding agentsmac appclaude codecodexopencodemulti-agent

How to choose the right Coding & Development tool

The right coding tool depends on where you write code and how much of your codebase it can understand. IDE integration is the first filter — a tool that lives in your editor, sees your project files and respects your stack will help far more than a general chatbot you paste snippets into. Look for accurate completions, clear explanations of suggested changes, and strong refactoring and debugging support for your main languages. Privacy deserves real attention: check whether your code is used for training, and whether a self-hosted or enterprise option exists for sensitive projects. Price against the hours it actually saves — most developers feel the difference within the first week of real use.

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Yardlet FAQs

What is Yardlet?

Yardlet puts the coding-agent CLIs you already use — Codex, Claude Code, OpenCode and more — side by side under one sidebar, composer and approval cards.

What are the main features of Yardlet?

Yardlet offers Side-by-side agent CLIs — Codex, Claude Code, OpenCode and more, One sidebar, composer and approval cards for every agent, Agent-to-agent handoffs, Sessions kept in each agent's own store and Homebrew install, plus a phone companion app that pairs by QR code.

How much does Yardlet cost?

Yardlet is open source, so the software itself is free to download, use and self-host. Your only costs are the infrastructure you run it on and any paid services you connect to it.

What are the pros and cons of Yardlet?

Strengths of Yardlet include One window for every agent CLI, instead of a terminal per agent; Agents hand work to each other without copy-paste; Sessions stay in each agent's own store. On the downside, macOS 15 or later on Apple silicon only — Windows and Linux are explicitly not available; You still pay for each agent's own plan.