AI diagrams and technical design docs built from your code and systems
AI diagrams and technical design docs built from your code and systems
ChartDB records 49,523 monthly visits with -33.4% month-over-month growth and Freemium pricing. UMLGenius records 0 monthly visits with — growth and Free pricing.

Turn a plain-language system description into a UML diagram in your browser
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | chartdb.io | chromewebstore.google.com |
| Pricing Model | Freemium | Free |
| Monthly Visits | 49.52K (49,523) | 0 (0) |
| MoM Traffic Delta | -24.87K (-33.4%) | 0 (—) |
| Primary Market & Share | 🇺🇸 United States (12.1%) | 🌐 Global (—) |
| Direct Visits / mo | 19.95K | 0 |
| User Rating | 4.6 | 4.2 |
| Supported Platforms | Website | Browser Extension |

Open-source database diagram editor with AI-generated ER diagrams
Paste a single read-only query result and ChartDB renders the whole schema as an ER diagram, with no direct database access or local agent required.
Describe a database idea in plain language and get a fully editable, optimized ER diagram that you can refine and export straight to SQL.
Export clean DDL scripts in your preferred SQL dialect or download diagrams as images and embeddable previews for documentation.
On Cloud plans, diagrams stay in sync with the live database automatically, with change logs and version history to track every schema drift.

Turn a plain-language system description into a UML diagram in your browser
Type a description of your system — entities, responsibilities, interactions — and the extension returns a ready-to-review UML diagram instead of requiring manual drawing.
ChatGPT handles interpretation of the request while PlantUML does the rendering, combining LLM flexibility with deterministic diagram output.
Because it runs as a browser extension, it sits alongside the tabs you already use for coding, issue trackers, and documentation.
Designed for speed: what would take hours of dragging boxes and arrows in a desktop modeling tool becomes a prompt and a quick correction pass.
AI diagrams and technical design docs built from your code and systems
AI diagrams and technical design docs built from your code and systems

AI-powered visual collaboration for diagrams, mind maps, and charts
AI-powered visual collaboration for diagrams, mind maps, and charts
One AI workspace for diagrams, docs, whiteboards and project delivery
One AI workspace for diagrams, docs, whiteboards and project delivery

SpecialistAI SQL assistant that writes, fixes and runs queries on your real schema
SpecialistAI SQL assistant that writes, fixes and runs queries on your real schema

Free / Open-sourceAI text-to-SQL client for database management and analysis
Free / Open-sourceAI text-to-SQL client for database management and analysis

Diagrams from text, code, or a single prompt
Diagrams from text, code, or a single prompt
SpecialistReady-made database schemas, sample data and an AI schema designer
SpecialistReady-made database schemas, sample data and an AI schema designer

SpecialistGenerate, optimize and explain SQL queries with AI for 28+ database engines
SpecialistGenerate, optimize and explain SQL queries with AI for 28+ database engines
Describe your system in words, get a diagram you can edit
Describe your system in words, get a diagram you can edit
Generate and edit Mermaid, PlantUML, and Excalidraw diagrams with AI chat
Generate and edit Mermaid, PlantUML, and Excalidraw diagrams with AI chat

SpecialistAI that turns your documents into clear, editable flowcharts
SpecialistAI that turns your documents into clear, editable flowcharts
SpecialistTurn any code snippet into an interactive flowchart you can actually read
SpecialistTurn any code snippet into an interactive flowchart you can actually read