Why Nimbalyst?
Working with AI agents requires a new tool and new workflow. Nimbalyst is the free, local, WYSIWYG file editor and session/task manager where you iterate with coding agents like Claude Code and Codex in three modes: Files, Agent, and Tasks. Nimbalyst stores your files and data locally, in an open format.
Files Mode
Work with Claude Code and Codex in interactive, WYSIWYG markdown docs, mermaid diagrams, excalidraw drawings, html mockups, data models, csv, sessions and code.
Focus on one file:
Edit the file in the center panel. See red/green diffs from your coding agent and review, accept them.
Work with your agent in the right panel to edit this file or explore other files, research the web.
Navigate and manage your files in the left panel file manager
Agent Mode
Session Management: organize, find, and continue your AI conversations. Track the files changed by a session and coordinate your stepping through and approving each one.
Coding support: All the power of Claude Code and Codex plus file tracking, diff visualization, code editing, and / command support with Github status tracking.
Task Mode
Status & Item Tracking: AI track and update status, bugs, to-dos, decisions, ideas directly in your markdown associated with the plan/work.
Open Approach
Open storage of content and status in markdown, code, html,
Future-proof - Your files will be readable in any text editor, forever
Portable - Move between different markdown tools without conversion
Version Control Friendly - Works perfectly with Git and other VCS
LLM-friendly - Work with Claude Code, Codex, and any AI
Open storage of workflow and config in coding agent / commands
Open storage of your files in your file tree or Github
Ways to Use Nimbalyst
As an AI-integrated fast, local, WYSIWIG markdown editor
To mockup your UI in html, edit it with AI, provide this as context to your coding agent
As a planning tool to help you create and manage features, plans, to-dos, and ideas
To code with Claude Code or Codex
As a manager of your coding agent sessions integrating your plans with your agentic coding
To organize your work
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