diagram-design vs fireworks-tech-graph
Which should you use? A side-by-side look at what each one does, who it suits, what it costs, how hard it is to set up, and where each falls short.
Open source · MIT
An agent skill that draws editorial diagrams as one self-contained HTML + SVG file.
Open source · MIT
Turns plain-language descriptions into SVG and PNG technical diagrams, with 12 visual styles.
The short answer
Choose diagram-design if you need…
- Developers who already use a supported coding agent and want architecture or flow diagrams without learning a diagram language
- Teams that want diagrams to follow their own brand colors and fonts
- People who want diagrams they can open by double-clicking, with no server needed
- Anyone who wants to import existing Mermaid, draw.io, or Excalidraw files and redraw them
Choose fireworks-tech-graph if you need…
- Developers who want architecture or flow diagrams from a text description inside Claude Code or Codex
- Engineers preparing C4, cloud deployment, or reliability review diagrams
- People documenting AI agent or memory architectures
- Teams that want consistent diagram styles across documentation
Side-by-side
| diagram-design | fireworks-tech-graph | |
|---|---|---|
| Type | AI model / agent | AI model / agent |
| Price | Free and open source | Free and open source |
| Licence | MIT | MIT |
| GitHub stars | 64.2k | 11.9k |
| Setup difficulty | Beginner | Intermediate |
| How you get it | Install with a package manager | See the README |
| Main language | HTML | Python |
| Last code update | 5 days ago | 16 days ago |
What each one is
diagram-design
Diagram Design is a skill you add to a coding agent such as Claude Code, Codex, Cursor, or GitHub Copilot. You describe the diagram you want in plain words, and the agent produces a single HTML file containing SVG that you can open in a browser. The README says it supports 45 diagram types and can match your site's palette and fonts after you run an onboarding step.
fireworks-tech-graph
fireworks-tech-graph is an Agent Skill that works in Codex and Claude Code. You describe a system in English or Chinese, and it generates SVG diagrams, high-resolution PNG exports, short GIF animations of diagram flows, and offline interactive HTML diagrams. The README says it supports UML diagram types and AI/agent workflow patterns, so it is aimed at people who need architecture or flow diagrams without drawing them by hand.
Best for
diagram-design
- Developers who already use a supported coding agent and want architecture or flow diagrams without learning a diagram language
- Teams that want diagrams to follow their own brand colors and fonts
- People who want diagrams they can open by double-clicking, with no server needed
- Anyone who wants to import existing Mermaid, draw.io, or Excalidraw files and redraw them
fireworks-tech-graph
- Developers who want architecture or flow diagrams from a text description inside Claude Code or Codex
- Engineers preparing C4, cloud deployment, or reliability review diagrams
- People documenting AI agent or memory architectures
- Teams that want consistent diagram styles across documentation
Strengths
diagram-design
- Output is one self-contained HTML and SVG file that opens without extra tooling
- Works across many agent hosts, with installation steps documented for each
- Licensed under MIT
fireworks-tech-graph
- Works with both Codex and Claude Code as a single Skill, according to the README
- Offers 12 visual styles and 14 UML diagram types as described in the README
- Released under the MIT license, which permits free use and modification
Not ideal for
diagram-design
- People without a supported AI coding agent, since the project is delivered as an agent skill and the README does not describe a standalone app
- Anyone who needs live, collaborative diagram editing, which the README does not mention
- Teams that need a fully manual drag-and-drop editor, because the agent chooses the diagram type and writes the file
fireworks-tech-graph
- Anyone who needs a pure drag-and-drop diagram editor, since the README describes generating diagrams from natural language rather than an interactive editing UI
- Users who do not use Claude Code or Codex, since the README frames it as an Agent Skill for those tools
- People who need guaranteed pixel-perfect layout without reviewing output, since the README notes measurement limits for text fit
Trade-offs
diagram-design
- The README does not state a release version, so update behavior depends on each host's install path
- Quality and type choice depend on the agent that runs the skill, which the README does not evaluate
- Some install paths (such as the Cowork organization marketplace) require extra setup like mirroring the repository
fireworks-tech-graph
- The README is truncated and does not fully document setup, so some details are unclear
- Text-fit and layout quality depend on the generator, and the README notes measurement limits
- Documentation is partly in Chinese and English with some sections that assume familiarity with Agent Skills
Getting started
diagram-design
Install the skill with the cross-agent skills CLI
npx skills add cathrynlavery/diagram-designAdd the Claude Code plugin marketplace
/plugin marketplace add cathrynlavery/diagram-designfireworks-tech-graph
Clone the repository
git clone https://github.com/yizhiyanhua-ai/fireworks-tech-graphFrequently asked questions
What is the difference between diagram-design and fireworks-tech-graph?
diagram-design: An agent skill that draws editorial diagrams as one self-contained HTML + SVG file. fireworks-tech-graph: Turns plain-language descriptions into SVG and PNG technical diagrams, with 12 visual styles. diagram-design suits developers who already use a supported coding agent and want architecture or flow diagrams without learning a diagram language, while fireworks-tech-graph suits developers who want architecture or flow diagrams from a text description inside claude code or codex.
Are diagram-design and fireworks-tech-graph free?
diagram-design: Free and open source. fireworks-tech-graph: Free and open source.
Which is easier to set up, diagram-design or fireworks-tech-graph?
diagram-design is easier to get started with (rated beginner); fireworks-tech-graph is rated intermediate and usually needs more setup.
Is diagram-design or fireworks-tech-graph more popular?
diagram-design has more GitHub stars (64.2k) than fireworks-tech-graph (11.9k). Popularity isn't the same as fit — check which one matches your use case above.
What are other alternatives to diagram-design and fireworks-tech-graph?
Other options people compare them with include Mermaid, Excalidraw, drawio-skill, Kami, Taste Skill.
Keep comparing
Built from our catalogue entries for both products: open-source details come from each project's README (AI-assisted, refreshed weekly) and GitHub data; AI-tool details are editorial. Spotted something wrong? Let us know from either product's page.