Tool
Emdash
Open-source agentic development environment (YC W26): run coding agents like Claude Code and Codex in parallel,

About
Run agents in parallel, schedule repeat work, preview apps in the built-in browser, and manage prompts, skills, and MCP tools from one place.
Pull from Linear, Jira, GitHub, Notion, Asana, and more. The agent gets full context.
Parallel tasks across separate Git worktrees — each keeps its branch, terminal, conversation, and review state together.
Inspect changes, commit, push, open pull requests, and monitor CI without switching tools.
Features
- Open-source parallel agent development environment
- Pricing
- Open Source
- Pricing detail
- Free open-source ADE
- Platforms
- macOS, Windows, Linux
Alternatives from our catalog
Tools on the same shelves as Emdash, ordered by shared tags and our own comparisons. Not vendor endorsements.
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- CrushOpen Source · CLI/TUI (cross-platform terminals)
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- ClaurstOpen Source · CLI/TUI + ACP editors
Underrated 2026 Rust Claude Code alternative on HN/GitHub; ACP-ready for Zed and friends
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- OpenAI CodexFreemium / plan-tied · CLI + IDE extensions + Codex Web
Apache-2.0 CLI with ChatGPT plan auth; strong Terminal-Bench showings; cloud+local split (CLI vs chatgpt.com/codex)
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