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Local WYSIWYG Markdown, mockup, data model editor powered by Claude Code

wek Thursday, December 18, 2025

We have been getting the best results with Claude Code when we iterate with it to build full context and then use and update that context as we work.

So, we built Nimbalyst to be the local WYSIWYG editor and session manager where you iterate with Claude Code on markdown docs, diagrams, mockups, data-models, sessions, and code. Nimbalyst lets you:

- Work in one integrated tool leveraging all your context.

- Use all the power of Claude Code in a UI

- Work with Claude Code to write and edit WYSIWYG markdown, see AI changes as red/green, approve them

- Iterate on html mockups with Claude Code, annotating the mockups, and then use them as context for people and Claude Code coding

- Build your data models based on your docs/code, iterate on them with Claude Code, export them in standard formats.

- Integrate mermaid diagrams, text, tables, mockups, data models, and images in standard markdown for human/AI context

- Tie sessions to documents to sessions, find and resume sessions, treat sessions as context, run parallel sessions

- Code with Claude Code with all of this context, use / commands, see git status.

Nimbalyst is in Beta, local, and free. We would love your feedback.

Summary
Nimbalyst is a software development company that specializes in building custom web and mobile applications. The article highlights their expertise in various technologies and their track record of delivering successful projects for clients across different industries.
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