PortBayvsEmdash
Both are desktop apps that dispatch the coding-agent CLIs you already have installed. Emdash (open source, YC W26) is built for parallel throughput: every task gets its own git worktree and branch, you review the diffs side by side, open the PR and inspect CI without leaving the app — locally or on a remote machine over SSH. PortBay is built around a different question: what does the agent run against? Its Kanban card sits inside a full local dev environment — managed PHP and Node, a per-project database, trusted HTTPS on a .test domain — so the agent verifies work against a live app, not just a diff.
Which one is right for you
You want the full stack, open source.
Your agent's work needs to be proven against a running application — a database to migrate, a page to load over HTTPS, an email to capture — and you want the board and the environment in one macOS app that's also your daily local dev tool. You prefer a card with comments and an audit trail over a queue of diffs.
It already fits your workflow.
You want maximum parallel throughput across the widest agent roster, you review by diff and merge by PR, you need Windows or Linux, or you run agents against remote machines over SSH. Emdash's issue-tracker intake (Linear, Jira, GitHub and six more) is also the strongest of any orchestrator we've compared.
Feature by feature
Every row sourced from the live product page. We mark partial support honestly — including where the other side wins.
Already using Emdash?
They compose more than they compete. Emdash dispatches the same agent CLIs PortBay does, so nothing about your subscriptions or CLAUDE.md setup changes. Plenty of work fits Emdash's wide parallel sweeps; the cards that need a database, a browser and proof before you trust "done" are what PortBay provisions for. Try it on one project alongside Emdash — switching isn't destructive.
- Install PortBay and add a project folder you've been running Emdash agents on.
- Press play — PortBay provisions the runtime, database and trusted HTTPS for that project.
- Create a card, assign Claude Code, Codex, Cursor or Antigravity, and move it to Todo — the agent works against the running app and reports back on the card.
PortBay vs Emdash, in plain terms
What does PortBay do that Emdash doesn't?
PortBay runs the environment the agent works in. The card that dispatches Claude Code or Codex also has a managed PHP or Node runtime, a per-project MySQL or PostgreSQL database, trusted HTTPS on a real .test domain, email capture and a one-click public tunnel behind it — so the agent can verify its work against the running app. Emdash orchestrates agents across git worktrees and expects you to supply the runtime, database and server yourself.
What does Emdash do that PortBay doesn't?
Quite a lot, honestly: per-task git worktrees for wide parallel runs, a side-by-side diff view with PR creation and CI checks in-app, intake from nine issue trackers (Linear, GitHub, Jira, GitLab, Asana, Featurebase, Monday.com, Forgejo, Plain), agents on remote machines over SSH/SFTP, and Windows/Linux support. If those are your bottlenecks, Emdash is the better orchestrator.
Is Emdash free and open source?
Yes. Emdash is Apache-2.0 licensed and free to download for macOS (Apple Silicon and Intel), Windows and Linux. The company behind it is a Y Combinator W26 startup, so a commercial layer may arrive, but as of mid-2026 the desktop app is free. PortBay is AGPL-3.0, free for up to 6 projects, with a $10/month Pro tier.
Emdash vs Superset vs Conductor — how do the three compare?
All three run parallel coding agents in git worktrees and review by diff; none runs a dev environment. Emdash is the open-source (Apache-2.0), cross-platform option with the widest agent roster and nine issue-tracker integrations. Superset is source-available (Elastic License) with a PR-first workspace model and a $20/user/month Pro tier. Conductor is closed source, macOS-only, with the most polished diff-review UI and a narrower agent roster. If the agent needs a running app rather than a worktree, that's the gap PortBay fills — see our Superset and Conductor comparisons for the row-by-row detail.
Can I use Emdash and PortBay together?
Yes, and it's a sensible split. Both dispatch the agent CLIs already installed on your machine, so they share your subscriptions and configuration. Use Emdash for wide, parallel, diff-reviewed sweeps; use PortBay for cards where the agent needs the application actually running — migrations, UI work it should load in a browser, anything touching the database or email.
Which should I choose?
Choose Emdash for maximum parallel throughput, diff-and-PR review, issue-tracker intake, remote SSH workflows, or if you're on Windows or Linux. Choose PortBay when verification matters more than volume — the agent works inside a provisioned local environment with a database, trusted HTTPS and mail capture, and the same app is your everyday local dev tool on macOS.
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