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Micro Agent vs Nimbalyst

A side-by-side comparison of pricing, ratings, features, pros and cons.

Micro Agent
Micro AgentBuilder.ioOpen Source
Nimbalyst
NimbalystNimbalystOpen Source
DescriptionOpen-source AI coding tool by Builder.io that writes tests first, then iterates code until they pass.Open-source visual workspace that pairs Claude Code and Codex agents with collaborative editing tools.
Category
DeveloperBuilder.ioNimbalyst
Verified StatusNoNo
Last UpdatedAug 2026Aug 2026
Pricing ModelOpen SourceOpen Source
Free PlanYesYes
Free TrialNoNo
Open SourceYesYes
API AccessNoNo
Features
Test-first, test-driven code generation
Natural language to working code conversion
Automatic test generation from requirements
Iterative refinement until tests pass
Support for JavaScript, TypeScript, and Python
Open source, npm-installable, requires OpenAI API key
Integrates Claude Code and Codex agents with visual editors
Parallel agent session management on a kanban board
Visible file diffs for reviewing AI edits before applying
Integrated task tracking and collaborative documents
Extension system for custom editors
Local-first, MIT-licensed, and free for individuals
Tags
ai-coding-agenttest-driven-developmentopen-sourcecode-generationdeveloper-tools
ai-coding-agentopen-sourcevisual-workspaceclaude-codecollaborative-editing
Review Count00
Saves00
Views38
Quality Score29/10029/100
Website StatusOnlineOnline
Websitewww.builder.ionimbalyst.com
Social Links3 linked3 linked
ScreenshotsNoNo
Pros
Free to use
Free to use

Who Should Choose Each Tool?

Choose Micro Agent if:

  • Free to use

Choose Nimbalyst if:

  • Free to use

Frequently Asked Questions

Both tools are closely matched on rating — the better fit depends on your specific needs. See the full feature and pricing comparison above.

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