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nezha

An Agent-First desktop IDE (macOS / Windows, just 7MB) for managing multiple Claude Code and Codex agents running in parallel across different projects. Built-in terminal, session replay, AI-generated commit messages, and weekly token usage analytics. 445 stars, v0.3.0, GPL-3.0.

Best For

Anyone running multiple Claude Code or Codex sessions simultaneously across different projects. Specifically:

  • Power users who run AI coding agents in parallel across multiple projects (development, research, writing)
  • Developers frustrated by switching between multiple terminal windows to manage multiple agent sessions
  • Anyone who wants to track AI agent token usage and session history
  • Vibe-coders who want a unified command center for their agent workflow

If you run one Claude Code session at a time, this is overengineering. If you have multiple agents working on different projects simultaneously, nezha solves the friction you face every day.

How I Actually Use It

The multi-agent parallel management problem is simple to describe: you have three Claude Code sessions running different tasks, and you need to know which one needs your confirmation, which one is stuck, and which one has finished. In a terminal, this means constantly switching between three windows and missing prompts.

nezha simplifies this at the root. One window shows all agents. Intelligent detection of "items needing confirmation" proactively alerts you before you need to check. Session replay lets you trace what an agent did after the fact, not just see the final result.

The 7MB install size says a lot: the author focused on core functionality and skipped the bloat. ProductHunt Featured, 445 stars, v0.3.0 released on April 20, 2026, actively updated.

GPL-3.0 licensing. If you are using this in a commercial environment with closed-source projects, the copyleft provisions require legal review. Personal use has no restrictions.

First launch on macOS requires: xattr -rd com.apple.quarantine /Applications/nezha.app

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Where It Is Strong

  • Multi-agent parallel dashboard: One window for multiple Claude Code / Codex sessions, real-time output, proactive notification when something needs your confirmation
  • Session history replay, built-in lightweight code editor with syntax highlighting, native Git integration with AI-generated commit messages, weekly token usage analytics
  • 7MB install covering macOS aarch64 / x64 and Windows arm64 / x64
  • Zero setup: If Claude Code is installed, nezha works. Download and run.

Where It Fails

  • GPL-3.0 licensing: Closed-source commercial use requires legal review of copyleft implications
  • First launch on macOS requires a manual xattr command to bypass Gatekeeper, which is friction for non-technical users
  • Small community (445 stars). Edge case support depends on GitHub Issues and the author's response time.
  • v0.3.0 is still early. Stability and edge case handling are not yet at mature tooling levels.

Pricing, Difficulty, and Risk

Free and open source under GPL-3.0. Very low difficulty — download the .dmg or .exe, open it, connect to existing Claude Code sessions, and it works. The main risk is GPL licensing implications for commercial closed-source environments; personal use or open-source projects have no concerns.

Verdict

The missing piece for multi-agent parallel workflows. If you run multiple Claude Code or Codex sessions simultaneously, nezha is the most direct solution available right now.

7MB, download and run, visual agent command center. Not the final form, but it handles the current pain point well. GPL-3.0 needs legal confirmation in commercial scenarios; for personal or open-source use, just try it.

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