Nimbalyst
Open-source visual workspace for AI coding agents with session kanban, visual editors, and task management for Claude Code, Codex, and more
Overview
Nimbalyst is an open-source visual workspace designed for developers working with AI coding agents like Claude Code and Codex. It provides a desktop and mobile environment where users can manage agent sessions via a kanban board, visually edit multiple file types (markdown, CSV, diagrams, mockups), and track tasks with integrated project management. The platform emphasizes parallel session management with git worktree isolation, allowing developers to run multiple agents simultaneously while maintaining organized workflows. Trusted by users at companies including Automattic, Redfin, Vanta, Gainsight, and Zillow.
The Verdict
Who Should Use Nimbalyst?
Best For
- Developers running multiple AI coding agents in parallel who need visual session management
- Teams transitioning from Vibe Kanban looking for an actively maintained alternative
- Engineers who want integrated visual editors for markdown, diagrams, and mockups alongside code
- Open-source advocates who prefer MIT-licensed, self-hostable tools
- Mobile-first developers who want to monitor agent sessions from iOS
Not Ideal For
- Teams needing deep integrations with Jira, Linear, or other project management tools
- Enterprises requiring custom SLAs or dedicated support contracts
- Developers who prefer terminal-only workflows without visual interfaces
What's Great
- Completely free with no feature limits or trial restrictions
- Session kanban board for organizing agent work (backlog, planning, implementing, complete)
- Rich visual editors for markdown, CSV, UI mockups, Excalidraw diagrams, and data models
- Git worktree isolation per session for safe parallel agent execution
- iOS companion app for mobile session monitoring
- SOC-2 Type 2 certified for enterprise security requirements
Watch Out For
- Newer platform with smaller community compared to established tools
- ACP support for Copilot and other agents still in Alpha
- No direct integrations with external project management tools (Jira, Linear, etc.)
Pricing
View all features & details
Key Features
- Session kanban board for agent workflow management
- Visual markdown editor with live preview
- CSV spreadsheet editor
- UI mockup designer
- Excalidraw diagram integration
- Data model / ERD editor
- Mermaid diagram support
- Integrated task tracker with status, tags, priority
- File edits sidebar showing modifications
- Git worktree isolation per session
Supported Agents
- Claude Code (Anthropic)
- Codex (OpenAI)
- OpenCode, Copilot via ACP (Alpha)
Platforms
- macOS (Apple Silicon + Intel)
- Windows
- Linux
- iOS (companion app)
How It Compares
| Feature | Nimbalyst | Vibe Kanban | Overcut |
|---|---|---|---|
| Session Kanban | Yes | Yes (sunsetting) | No |
| Visual Editors | Markdown, CSV, Diagrams, Mockups | Code only | No |
| Git Worktree Isolation | Yes | Yes | No |
| Mobile App | iOS | No | No |
| Open Source | MIT License | Community-maintained | No |
| Pricing | Free | Free | Freemium |
| Best For | Visual agent workspace | (Sunsetting) | Workflow automation |