Agent-native visual
workspace for Builders

Nimbalyst is the free, local, interactive visual editor & session manager where you iterate with Claude Code and Codex on your sessions, markdown, mockups, diagrams, csv, Excalidraw, data models, MCP, and code.

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Also available for: macOS Apple Silicon macOS Intel Windows Linux

Trusted by thousands of builders

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Visually edit with your agents

Interactive AI-powered visual editors

Use all your context. Review AI changes. Approve, reject, edit, iterate.

Markdown editor with Claude Code and Codex sidebar

Context-aware editing

Edit Markdown files while Claude Code and Codex understands the full project structure, related files, and intent.

Side-by-side AI assistance

Work directly in your markdown while interacting with Claude Code and Codex in parallel — no context switching.

Review and Approve AI Edits

See which files the agent reads or edits, review changes instantly, and stay in full control of every update.

Manage Agent sessions

Agent Management Environment

Chat, organize, research, plan, write, analyze, and code with full context and visibility.

Agent Window

Interact with your agent with full visibility into context, actions, and outputs. Interactive questions, visual elements in the session.

Agent Window

Session Management

Browse, search, resume, and switch between parallel Claude Code and Codex sessions, worktrees, workstreams.

Session Management

File Edits Sidebar

File Edits Sidebar

Coming to iOS

Your Agent sessions, in your pocket

Start new sessions, Monitor running sessions, review agent work, and chat with Claude Code and Codex from your iPhone. Pair with your Mac in seconds and stay connected to your work from anywhere.

Coming soon to the App Store
Nimbalyst iOS — session list showing active agent sessions
Nimbalyst iOS — agent session detail with code

Testimonials

Trusted by Builders

"Nimbalyst blew my mind from day one and continues to do so. Easy to set up and use. It has truly upped my product game and my productivity!"

- Satya Gunnam

"Nimbalyst works great and is seamless for my day-to-day product work PRDs, discovery, and prototypes."

- Kyle Marks

"Nimbalyst has quickly become my indispensable daily driver for Claude Code. The user experience is vastly superior to using it in the terminal."

- Ishan Mandhan

"Nimbalyst is my preferred way of working whether coding or planning my demos. Nimbalyst is great. Everything organized in 1 place."

- Vishal Patel

"Hands-down, Nimbalyst is best way to work with Claude Code."

- Carl Velotti

"I use Nimbalyst now! Find it more adapted for beautifying markdown files."

- Jules Boiteux

FAQ

Frequently asked questions

What is Nimbalyst?
Nimbalyst is a free, local, interactive editor and session manager for working with Claude Code and Codex. It lets you work on sessions, markdown, mockups, diagrams, CSVs, Excalidraw, data models, MCP, and code -- all in one workspace.
What file types can I work with?
Nimbalyst supports markdown, code files, Excalidraw diagrams, HTML mockups, data models, CSVs, and more. Each file type has a purpose-built visual editor with AI collaboration.
Can I visualize my sessions?
Yes. The session manager shows all your Claude Code and Codex sessions, their status, files involved, and conversation history. You can browse, search, and switch between parallel sessions.
How do I start a new agent session?
Open Nimbalyst, hit the new session button, and start chatting. Claude Code and Codex have full context of your workspace -- files, docs, diagrams, and code.
Is there a paid plan?
Nimbalyst is free to use as an individual. You need a Claude Pro or Max subscription from Anthropic to power the AI features.

Nimbalyst: Agent-native visual workspace for Builders

Download
Also available for: macOS Apple Silicon macOS Intel Windows Linux