Composer
AI architect / MCP for software architecture diagrams
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Hi everyone!I built Composer, which is a tool turns your ideas into architecture diagrams. You can also use MCP to turn your EXISTING codebase into a visual diagram!It connects to all possible tools using MCP (Claude Code, Codex, OpenCode, etc.)The goal was to make system design easier and to be able to draw out what I wanted to make before I started / to explain to others.Its currently live at usecomposer.com and free!I’d love feedback on whether it feels useful for real projects and where it breaks down. :) Thank you
HN · launched Apr 3, 2026 · 8 upvotes (top 52%) · 0 views
Niche: codebase visualization tools · 89 launches, 4 in the last 7 days ▼ -43% · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- Developer
- AI-native
- Commercial product
Visit website ↗ Source listing ↗
More like this: all 89 launches in codebase visualization tools →
Could you build this?
Yes The core application parses code/prompts via LLM or MCP protocol and visualizes the structure using standard diagramming libraries (e.g., Mermaid.js, React Flow, or Excalidraw).
Discussion
10 comments analyzed.
Concerns raised: Too many questions required before completing a diagram, Complexity with large numbers of nodes
Feature requests: Sub-graphs for multi-service applications with linking between them, Different levels of complexity
Competitors
Other products that read as similar to this one : 437 launches clear the similarity bar, closest 8 shown.
Attention rank: #227 of 438 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 150 days after the earliest competitor.
- Skiva · ph · 2026-11-11 · 2 upvotes · similarity 0.59
- CodeChroma · ph · 2026-11-08 · 1 upvotes · similarity 0.49
- Motif · ph · 2026-10-04 · 1 upvotes · similarity 0.48
- SpecMind · hn · 2025-11-11 · 8 upvotes · similarity 0.47
- Modern C++ Build Tools for Module Feature · hn · 2026-08-08 · 8 upvotes · similarity 0.46
- GRASP - Code Architecture Visualizer · ph · 2026-11-03 · 1 upvotes · similarity 0.46
- Integrated Architecture Environment · ph · 2026-09-18 · 1 upvotes · similarity 0.45
- MNKI · ph · 2026-10-11 · 1 upvotes · similarity 0.45
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