Nimbalyst

Nimbalyst is a visual workspace for using Claude Code and Codex with files, sessions, and tasks in one interface. Its editors cover markdown, code, CSV spreadsheets, mockups, Excalidraw and Mermaid diagrams, and data models. Users can run agent sessions in parallel, find and resume saved sessions, and link sessions to the files they read or change. Developer Mode adds a Monaco code editor, terminal, visual git management, worktrees, and pull request review. Teams can edit shared documents, mockups, diagrams, trackers, and kanban boards together in real time. Content and metadata are stored as standard files on the local filesystem, with GitHub sync as an option. The desktop and iOS apps are MIT licensed, and apps are available for Linux, macOS, and Windows. Android is planned for a future release. AI features require users to bring their own AI subscription or API key; local models through LM Studio are also listed. Individual is free with no feature limits. Teams is listed at $20/user/mo or $200/user/year and is free during Beta.

Nimbalyst brings agent sessions, visual editing, and team collaboration together, with local files at the center of its storage approach. Check the AI access requirement and platform availability against your needs; Teams is listed at $20/user/mo and free during Beta.

Nimbalyst suits individuals or teams who work with coding agents and want files, sessions, and collaborative materials in one workspace. It may be relevant to users who prefer locally stored standard files and can supply their own AI access.

Nimbalyst is a workspace for coordinating Claude Code and Codex sessions alongside project files and visual editors. It is best for individuals and teams that want agent work tied to editable materials, rather than kept in a separate chat interface. Its free Individual plan is generous on features, but AI access requires a separate subscription or API key.

Overview

Nimbalyst brings agent sessions, tasks, and project materials into one workspace. Users can run sessions in parallel, search and resume saved work, and link sessions to files they read or change. That makes it a stronger fit for ongoing agent-assisted projects than for someone looking only for a diagramming tool.

Content and metadata are stored as plain markdown and other standard files on the local filesystem, with optional GitHub sync. The desktop and iOS apps are MIT licensed, and the source code is on GitHub. Nimbalyst says workspace data stays on the device unless users opt into cloud features such as sync, sharing, or Teams. Its stated safeguards include SOC 2 Type II auditing, encryption in transit and at rest, access controls, logging, and vendor due diligence.

Key features

• Visual editors: Editors cover markdown, code, CSV spreadsheets, mockups, Excalidraw diagrams, data models, and Mermaid diagrams. Mermaid support, diagram import, and exports to Mermaid, Excalidraw, and Prisma schema make the workspace useful for people moving between written plans, diagrams, and implementation materials.
• Agent sessions: Parallel sessions, search, resume, and file links help users keep track of agent activity across a project. Claude Code and Codex are supported; OpenCode and GitHub Copilot are alpha providers, so they are a less established choice.
• Developer Mode: A Monaco code editor, terminal, visual git management, worktrees, and pull request review bring development tasks into the workspace. This breadth will matter most to people who want agent sessions near code and version-control work.
• Connections and collaboration: MCP connections include services such as Linear, GitHub, and Slack. Teams adds real-time multiplayer editing for shared documents, mockups, diagrams, trackers, and kanban boards, making it the relevant tier for groups working together on those materials.
• Mobile sessions: The iOS app can monitor sessions, review diffs, resume work, and send agent instructions from an iPhone. Android is planned for a future release, so it is not a current option for Android users.

Pricing

Nimbalyst uses a freemium model. The Individual plan costs nothing, has no feature limits or trial period, and requires users to bring their own AI access. That makes it a substantial starting point for solo users, but the plan does not cover the separate AI subscription or API key needed for AI features. Local models through LM Studio are also an option.

Teams costs $20 a month (billed or $200 / user / year. Free during Beta.) or $200 a year (billed Free during Beta.). Both paid plan entries include everything in Individual, real-time collaboration, shared docs, and trackers. The per-user pricing makes Teams a consideration for groups that need shared editing; its listed free-during-Beta term is important when judging future cost.

Enterprise has custom pricing and includes everything in Teams, plus a collaboration server in your cloud or managed by Nimbalyst, data residency, and custom editors. It is aimed at organizations needing those deployment and customization options rather than just shared workspaces.

Platforms

Nimbalyst supports iOS, Linux, macOS, and Windows. The iPhone app adds session monitoring and control away from a desktop, while Android users will need to wait for the planned release.

Who it's for

Nimbalyst suits people working with agents, from one-person teams to larger groups. It is particularly relevant when the work spans code, documents, diagrams, and task tracking and users want sessions tied to local project files. Someone who needs AI features without bringing separate AI access, or who primarily wants a standalone diagramming service, should look elsewhere.

Pros and cons

• Pro: A broad set of visual editors and agent-session tools share one workspace, helping keep project artifacts connected to ongoing agent work.
• Pro: Local standard files and optional GitHub sync give users a filesystem-centered storage approach, while the iOS app can monitor and resume sessions.
• Pro: Individual has no feature limits, and Teams adds real-time collaboration for shared materials.
• Con: AI features require a separate subscription or API key, so the free plan does not remove the cost or setup of AI access.
• Con: Teams is priced per user and marked free during Beta, making its longer-term cost less settled than its current offer suggests.
• Con: Android is not yet supported, and two additional agent providers are only alpha.

Alternatives

For a broader set of diagram-focused choices, see AI Diagram Generators. Choose ArchitectureDiagram.ai if a web or API diagram tool with a free plan better matches your needs. Archway offers a free tier with five AI generations per month and three diagrams, which may suit users who want a defined monthly generation allowance. Consider ClearWork for a web-based option with a free read-only tier for up to 10 users. Creately has a free plan with unlimited canvases and collaborators, useful when those limits are more important than Nimbalyst's agent-session workflow. Eraser may be a better match for users who want a free diagram plan capped at three files and three AI diagrams, with seven-day version history. OpenCharts offers a free plan with 500K AI credits, one of each project type, and 10 GB Drive storage. AI Diagram Maker includes 50 AI credits per month on its free plan, while AI Flowchart offers daily free credits in a web-only product.

Verdict

Choose Nimbalyst if you want Claude Code or Codex sessions connected to local project files, visual editors, and—on Teams—shared materials. Its breadth and feature-unlimited Individual plan make it a compelling workspace for agent-centered work, provided you bring your own AI access. Look elsewhere if you need Android today, want AI included in the price, or only need a dedicated diagramming tool.