AIchitect
StacksGraphBuilderCompare
123 tools · 10 stacks
GitHub

AI tools are all over the place. This is the full landscape — 123 tools across 12 categories, mapped and connected. Ready to narrow it down? Build your stack →

Stack Layers
What are you building and how is it defined?
How do you write and ship code?
How does your AI think and act?
Which models and infrastructure power it?
How do you build, observe, and extend it?
React Flow mini map
Press enter or space to select a node.You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
These tools often paired
Spec Kit
vs
Mermaid

Choose Spec Kit when…

  • •You want to write AI-readable specs for your codebase
  • •You're building with AI agents that need structured context
  • •You want your architecture defined before you code

Choose Mermaid when…

  • •You want diagrams embedded in Markdown or docs
  • •Lightweight text-based diagramming fits your workflow
  • •You need flowcharts or sequence diagrams quickly
Field
Spec Kit
Mermaid
Category
Specifications
Specifications
Type
OSS
OSS
Free Tier
✓ Yes
✓ Yes
Plans
—
—
Stars
⭐ 28,000
⭐ 87,000

Spec Kit

Open-source scaffold from GitHub that operationalizes spec-driven development with AI coding agents. Creates structured .specify/ folders that serve as the source of truth for Claude Code, GitHub Copilot, and Gemini CLI — steering AI generation from upfront specs rather than improvised prompts.

Mermaid

Renders flowcharts, sequence diagrams, ER diagrams, C4 diagrams, and Gantt charts from simple Markdown-style text definitions. Native support in GitHub, GitLab, Notion, and dozens of engineering platforms. With 87k+ GitHub stars, it's the most widely adopted diagramming tool in engineering.

Spec Kit Website ↗GitHub ↗
Mermaid Website ↗GitHub ↗

Only Spec Kit (5)

Claude CodeGitHub CopilotGitHub MCPMermaidCursor

Only Mermaid (5)

Spec KitStructurizrEraserNotion AISwimm
See full comparison in Explore →