An AI-powered visual workspace where teams think, plan, and build together
ChartDB records 49,523 monthly visits with -33.4% month-over-month growth and Freemium pricing. RapidChart.ai records 6,805 monthly visits with -58.5% growth and Free pricing.

Create technical diagrams in minutes, not hours.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | chartdb.io | rapidcharts.ai |
| Pricing Model | Freemium | Free |
| Monthly Visits | 49.52K (49,523) | 6.81K (6,805) |
| MoM Traffic Delta | -24.87K (-33.4%) | -9.59K (-58.5%) |
| Primary Market & Share | 🇺🇸 United States (12.1%) | 🇺🇸 United States (26.1%) |
| Direct Visits / mo | 19.95K | 2.71K |
| User Rating | 4.6 | 4.2 |
| Supported Platforms | Website | Website |

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.

Create technical diagrams in minutes, not hours.
Describe the system or paste code and get a diagram in seconds, so documentation stops competing with development time.
Class, sequence, use case and flowchart output covering the UML specification, with intelligent auto-layout instead of manual dragging.
Hierarchical C4 model diagrams that span system context down to code-level components for architecture documentation.
Design schemas with tables, relationships and constraints, then visualise neural networks, ML pipelines and deep learning models.
An AI-powered visual workspace where teams think, plan, and build together
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

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

Chat with your data and get charts and diagrams in seconds
Chat with your data and get charts and diagrams in seconds

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
SpecialistTurn any code snippet into an interactive flowchart you can actually read
SpecialistTurn any code snippet into an interactive flowchart you can actually read