Best Nimbalyst Alternatives (2026)

The right Nimbalyst alternative depends on what drew you to Nimbalyst in the first place. If you came for parallel Claude Code and Codex sessions and the visual editors are a bonus, Agentastic gives you a native Mac IDE with 55 agent definitions, a worktree for every task, and container, SSH, and cloud isolation. If you need Windows or Linux, Orca and Emdash are open-source desktop apps for all three. If you want a focused chat-first Mac app, Conductor is the simplest.

Nimbalyst does several things nothing else on this list does, and we call those out rather than paper over them. Since we make Agentastic, every statement about a product, ours included, links to that product's own documentation, pricing, or code as reviewed on October 5, 2026.

Nimbalyst alternatives at a glance#

Tool	Best for	Platforms	Agents	Isolation	Price / license	Main tradeoff
Nimbalyst (for reference)	Docs, mockups, and trackers next to sessions	macOS, Windows, Linux; iOS	Claude Code, Codex; OpenCode and Copilot in alpha	Optional worktree per session	Free for individuals, Teams $20/user/mo; MIT	Electron; short agent list
Agentastic	Many agents in one native Mac window	Mac (macOS 14+); iPhone in beta	55 definitions, plus any CLI you add	Worktree default; containers, SSH, cloud	Free, closed source	No Windows, Linux, or Android; Markdown is the only visual editor
Conductor	Issue-to-PR through a chat window	Mac; iPhone app on Pro	Claude Code, Codex, Cursor, OpenCode	Worktree per workspace; hosted sandboxes on Pro	$0 locally; $50/mo Pro	Mac-only, four agents
Orca	Cross-platform IDE with GitHub and Linear tasks	Windows, Linux, macOS; iPhone and Android	Around 40 presets, any terminal agent	Worktree per agent; SSH hosts	MIT, free	Electron; permission prompts off by default
Emdash	Tickets into agents, plus schedules	macOS, Windows, Linux	34 detected CLIs	Worktree per task; SSH remotes	Apache 2.0, free	No mobile client
Paseo	Agents on a server, steered from anywhere	Every desktop OS, web, iOS, Android	Six native providers, dozens via ACP	Local folder or worktree	Apache 2.0, free	Not an IDE
Superset	Scripting how agents get work	Mac (Linux in testing)	22 presets plus custom CLIs	One worktree per task	Free solo; $20/seat Pro; ELv2	Remote and phone access are paid
Claude Code Desktop / Codex in ChatGPT	Staying with one vendor	Mac and Windows, plus Linux (Claude's is beta)	Claude Code or Codex	Optional worktree per session or chat	Included in the vendor's plans	No mixing vendors
Claude Squad	The lightest possible setup	Terminals with tmux installed	Whatever command a profile names	tmux session and worktree per task	Free; AGPL-3.0	Text interface only

Why people look for a Nimbalyst alternative#

Nimbalyst's pitch is a visual workspace: sessions, trackers, documents, mockups, and diagrams that you and your agents edit together, stored as plain files in your repository. People go looking elsewhere for a few reasons:

• You wanted a session manager, not a workspace. If you never open the mockup or diagram editors, the rest of the app is more product than you need.
• Your agents aren't on the list. Claude Code and Codex are fully supported, while OpenCode and Copilot are in alpha. If you also run Gemini CLI, Cursor, Amp, or Droid, you need broader coverage.
• You want a native app. Nimbalyst's desktop app is built on Electron.
• You want the agent's own terminal. Nimbalyst shows each session as a transcript in its agent window. A raw Claude Code CLI provider is opt-in, and its Ghostty-powered terminal panel is a general shell rather than the default agent surface.
• You need more than a local worktree. Nimbalyst's docs cover local sessions and git worktrees; they don't document containers, SSH dev boxes, or cloud sandboxes for agents.

Crystal is now Nimbalyst#

If you searched for "Crystal Claude Code", this is what happened. Crystal was Stravu's MIT-licensed desktop app for running several Claude Code and Codex sessions in parallel git worktrees and comparing their results. Its repository now reads "Crystal Is Now Nimbalyst", marks the project deprecated as of February 2026, and points to nimbalyst.com.

The last Crystal release is v0.3.5, from February 26, 2026. The repository says you can keep using it, but updates go to Nimbalyst. Crystal's worktrees are ordinary git worktrees, so moving to Nimbalyst or any tool below starts with committing and pushing the branches you want to keep.

1. Agentastic: best native Mac alternative#

Agentastic is built in Swift for macOS and treats each provider's CLI as the worker: the agent runs in a GPU-drawn Ghostty terminal inside a git worktree created for that task, and 30 agents can switch to a structured chat view. It covers part of Nimbalyst's document side too: Markdown files open in a block editor that renders Mermaid diagrams and lets you select a passage and send it straight to the agent in that worktree.

• Best for: Mac developers who run several providers and want terminals, isolation, and review in one native app.
• Platforms: Macs on macOS 14 or newer, Intel or Apple Silicon; an iPhone companion is in public TestFlight beta (iOS 18+).
• Agents: 55 ready-made definitions, and custom ones for any other CLI.
• Isolation: worktrees unless told otherwise; a Docker or Apple container, an SSH dev box, or a Modal, Fly.io, or Vercel sandbox on your own account is one mode switch away.
• Price and license: costs nothing; the code isn't published.

Where it beats Nimbalyst: native performance, far more agents, a worktree for every task without opting in, containers and remote runs, a built-in browser your agents can steer with dev browser commands, and AI review from Claude, Codex, CodeRabbit, or Greptile. Its Kanban board lays every worktree out as a card with its diff size, pull request, and a hover preview of the agent's terminal.

Where Nimbalyst beats it: visual editors for mockups, Excalidraw, CSV, data models, and slides; a task tracker that agents read and update; Windows and Linux apps; real-time team collaboration on shared documents; and an MIT license.

2. Conductor: best chat-first Mac app#

Melty Labs' Conductor is the narrower, chat-driven option: four agents (Claude Code, Codex, Cursor, and OpenCode), each task in a worktree-backed workspace, and a guided path from a GitHub or Linear issue through review to a merged pull request.

• Best for: people who want the app to carry an issue all the way to a merged PR, and who only need its four agents.
• Platforms: Macs only; Windows and Linux users can join a waitlist on the install page, and Pro adds an iPhone app.
• Price and license: proprietary; free on your own Mac, with Pro at $50 a month if you want Conductor's cloud, multiplayer, beta API, or iPhone app.

Where it beats Agentastic: it runs the cloud sandboxes for you, and several people can work in one workspace at once.

Where Agentastic beats it: you see each agent's actual terminal, pick among 55 agents rather than four, and can wall a task off in a container or on an SSH host, which matters because Conductor's FAQ says its local agents run unsandboxed. Cloud agents and the iPhone app don't require a subscription either. See Agentastic vs Conductor.

Nimbalyst vs Conductor#

	Nimbalyst	Conductor
Runs on	Mac, Windows, and Linux desktops	Macs only
Interface	Visual workspace: agent window, editors, trackers	Chat-first workspaces
Agents	Claude Code, Codex; OpenCode and Copilot in alpha	Claude Code, Codex, Cursor, OpenCode
Isolation	Worktree you choose per session	Worktree for every workspace
Planning	Built-in trackers with kanban and list views	Starts workspaces from GitHub or Linear issues
Cloud	No managed cloud documented	Conductor Cloud on Pro
Mobile	iOS app, free	iOS app on Pro
Price	Free for individuals; Teams $20/user/mo, free in beta	Free locally; Pro $50/mo; Teams $60/user/mo
License	MIT	Not published

Choose Nimbalyst when the plan, the mockup, and the tracker matter as much as the diff. Choose Conductor when you want the shortest path from issue to pull request on a Mac.

3. Orca: best open-source IDE on every OS#

Where Nimbalyst wraps agents in documents, Orca wraps them in an IDE, and it matches Nimbalyst's reach: Stably AI publishes it under MIT for Windows, Linux, and macOS, with a phone companion on the iOS App Store and as an Android APK. Each agent gets a worktree, split terminals, and a Monaco editor; a Chromium pane with design mode handles UI work, diff annotations go back to the agent, and GitHub or Linear tasks open as worktrees.

• Best for: mixed-OS teams who want code, not canvases, at the center.
• Agents: around 40 with one-click setup, and any other terminal program.
• Price and license: free; MIT.

Where it beats Agentastic: an open license and apps for platforms Agentastic skips, including Android.

Where Agentastic beats it: a Swift app instead of an Electron one, containers and cloud sandboxes that ship as standard features, and third-party reviewers like CodeRabbit and Greptile. Check one default before you move: Orca adds each agent's permission-bypass flag to new launches unless you change it under Settings → Agents.

4. Emdash: best for issue intake and automations#

For teams whose work begins as a ticket, Emdash is worth a look. It's an Apache 2.0 project from General Action, a YC-backed startup, and it installs on macOS, Windows, and Linux. Per its docs, you can hand an issue from GitHub, Jira, Linear, or several other trackers to any of 34 CLI agents, each in its own worktree, and schedule recurring runs; it also includes a file editor, an in-app browser, and SSH remotes.

• Best for: teams whose work starts in a ticket system and who want recurring agent runs.
• Price and license: no cost under Apache 2.0; hosted Emdash Cloud is a sales conversation.

Where it beats Agentastic: a Windows or Linux desktop is no obstacle, and the source is Apache-licensed.

Where Agentastic beats it: a phone app, container isolation, cloud sandboxes without writing provisioning scripts, and a native Mac interface where Emdash uses Electron.

5. Paseo: best when your agents live on another machine#

Paseo splits the job between a daemon that runs your agents, on a laptop, server, or Docker host, and clients that connect to it: desktop apps for macOS, Windows, and Linux, a web app, iOS and Android apps, and a CLI. It runs Claude Code, Codex, OpenCode, Pi, Antigravity, and Muse Code natively and dozens more through its ACP catalog.

• Best for: people whose agents run on a server or homelab and who want to check in from anywhere.
• Price and license: free and Apache-licensed; the optional hosted Paseo Hub has a free tier and a Pro plan at $15 per seat.

Where it beats Agentastic: clients for Android, the web, Windows, and Linux, a daemon that runs without a screen, and on-device voice input.

Where Agentastic beats it: Paseo says it is not an IDE, while Agentastic gives you an editor, containers, and review agents next to the terminals. Our Paseo alternatives guide covers it in depth.

6. Superset: best if you want to automate the orchestration layer#

Superset, which has nothing to do with Apache Superset, runs Claude Code, Codex, or any CLI agent in terminals with a worktree per task. It includes a file editor, a diff viewer, and a browser with a design mode that agents can drive, and exposes the whole workspace through a CLI, SDK, and MCP server.

• Best for: people who want scripts and other agents to create and steer workspaces.
• Platforms: macOS, plus a Linux AppImage its README marks experimental.
• Price and license: one person uses it free; Pro is $20 a seat per month, $15 if paid yearly. The Elastic License 2.0 lets you read the code but isn't an open-source license.

Where it beats Agentastic: published source and an SDK for building on top of it.

Where Agentastic beats it: native code in place of Electron, two and a half times the agent presets (55 to 22), containers, and remote and cloud agents that don't require Pro.

7. Claude Code Desktop and the Codex app: best if you only ever used one vendor#

If Nimbalyst was mostly a nicer window onto Claude Code or Codex, the vendors' own apps now cover a lot of it. Claude Code Desktop, the Code tab in Anthropic's Claude app, runs sessions in parallel, gives any of them a worktree on request, and bundles a terminal, file editor, diff review, and app preview. Since July 2026, Codex lives inside the ChatGPT desktop app, where worktree chats can be handed off to your local checkout.

• Best for: Nimbalyst users who only ever ran one provider.
• Price: Claude Code comes with Claude Pro, Max, Team, and Enterprise; Codex is part of every ChatGPT plan, Free included.

Where they beat Agentastic: each vendor ships its own features there first, and both apps run on Windows and Linux.

Where Agentastic beats them: Claude, Codex, and other providers side by side, cross-vendor review, and container isolation. See best Claude Code GUI apps for more options around Claude.

8. Claude Squad: best if Nimbalyst feels like too much#

At the opposite end from Nimbalyst sits Claude Squad, a keyboard-driven terminal program you start as cs. Each session gets a tmux session and a git worktree; Claude Code is the default, and Codex, Gemini, Aider, or any other command can be saved as a profile.

• Best for: people who found Nimbalyst too heavy and live in tmux.
• Price and license: free under AGPL-3.0; you'll need tmux and the GitHub CLI installed.

Where it beats Agentastic: almost nothing to install, and it works over SSH on a Linux machine.

Where Agentastic beats it: the parts a text interface can't offer, from an editor and browser to attention alerts and AI review. See Claude Squad alternatives.

When to stay with Nimbalyst#

Nimbalyst is the better fit if:

• Your work starts in plans, specs, mockups, and diagrams, and you want agents editing those artifacts with red/green review, not just code.
• You track bugs and features in a tracker your agents read and update, with kanban and list views.
• Your team works across macOS, Windows, and Linux, or wants real-time collaboration on shared documents.
• You want an MIT-licensed app and plain files on disk that move with your repository.
• Claude Code and Codex are the only agents you need.

How to choose#

1. Decide whether the visual layer matters. If you use the mockup, diagram, and tracker editors daily, stay with Nimbalyst. If you mainly run sessions, choose a tool optimized for that.
2. Check your OS. Outside macOS, your shortlist is Orca, Emdash, and Paseo; Mac users can choose freely.
3. Count your agents. If Claude Code and Codex are all you run, Nimbalyst, Conductor, or a vendor app will do. A wider mix calls for Agentastic, Orca, or Superset.
4. Decide how much isolation you need. A separate checkout covers ordinary feature work. Once an agent installs system packages or runs a database, give it a container or a remote host, both of which Agentastic includes.
5. Pick how you'll watch agents. In the agent's own terminal: Agentastic, Superset, Orca, or Claude Squad. In a transcript: Conductor, Nimbalyst, or a vendor app.

How to switch from Nimbalyst to Agentastic#

Nimbalyst keeps your content as plain files in the repository, and both apps run the same provider CLIs, so the move is mostly about habits.

1. Set up Agentastic. The download page has the DMG, and brew install agentasticai/tap/dev does the same from a terminal; you need macOS 14 or newer.
2. Make sure the CLIs work on their own. Nimbalyst can sign in to providers itself, but Agentastic launches the claude and codex binaries from your shell, so run each once in a terminal and log in. Then open the repository with Cmd+O.
3. Commit and push open worktree sessions. Branches from Nimbalyst worktrees are ordinary git branches. If a branch has an open pull request, pick that pull request in Agent Home's base-branch picker to check it out directly in a new worktree.
4. Keep your documents. Plans and specs stay as Markdown in the repository. Press Shift-Cmd-V to cycle a file through Source, Document, and Split views, and select a passage to send it to the agent running in that worktree. Mermaid diagrams render in place; mockups, Excalidraw drawings, and CSV files need their own tools.
5. Map trackers to labels. Agentastic's board shows worktrees, not backlog items. Create labels for your stages, choose one when you launch from Agent Home, and keep the backlog itself in your tracker files, Linear, or GitHub Issues, which you can link or @-mention when you launch.
6. Port setup steps. Put dependency installs and .env copies in .agentastic/setup.sh, which runs in every new worktree; see setup scripts.
7. Bring your MCP servers. Your own ~/.claude.json and repository .mcp.json keep working. To give every agent the same servers, add them once under Settings → Plugins → Add MCP Server.
8. Pair your phone. After installing the iPhone app through TestFlight, enable phone connections in Settings → Mobile App and scan the QR code.

Sources#

Sources, all first-party and all checked on October 5, 2026:

• Nimbalyst: homepage, pricing, mobile app, worktrees, terminal, kanban and list views, GitHub
• Crystal: GitHub, releases
• Conductor: pricing, install, FAQ
• Orca: homepage, supported agents, GitHub
• Emdash: docs, GitHub
• Paseo: homepage, downloads, GitHub
• Superset: pricing, GitHub
• Anthropic: Claude Code Desktop
• OpenAI: ChatGPT desktop app documentation, worktree handoff, Codex plans
• Claude Squad: GitHub

Continue the research:

• Agentastic vs Nimbalyst: a closer look at the two side by side
• Vibe Kanban alternatives, for board-first agent workflows
• AI coding agent orchestration tools: how Nimbalyst compares with every other control plane