ChartDB

ChartDB is a powerful and intuitive tool designed to transform complex database schemas into clear, interactive, and shareable Entity-Relationship (ER) diagrams in seconds. Built by developers for developers, it addresses the common pain point of understanding and documenting database structures. With both a user-friendly cloud platform and a popular open-source, self-hosted option, ChartDB caters to individual developers, growing teams, and enterprises focused on security and customization.

The core of ChartDB is its simplicity and speed. Users can import their entire database schema with a single, pre-written query, eliminating the need for direct database access credentials. This process generates a beautiful, editable diagram almost instantly. The platform's AI Diagram Assistant elevates the experience by intelligently analyzing the schema to suggest improvements, find missing relationships, recommend foreign keys, and identify potential optimizations like missing indexes, helping teams build more robust and efficient databases.

How to use ChartDB

Using ChartDB is a straightforward, three-step process: Import, Edit, and Export.

1. Import Instantly: Select your database type (e.g., PostgreSQL, MySQL, SQL Server). ChartDB provides a single, safe query to run against your database. This query fetches only the schema information (table names, columns, types, relationships) without accessing any sensitive data. Paste the query result into ChartDB to instantly generate your diagram.
2. Edit & Collaborate: Once the diagram is generated, you can visually edit it. Create, manage, or delete tables and relationships using the advanced editor. Invite teammates to view and edit the diagram in real-time, ensuring everyone is on the same page. Use the AI Assistant by clicking “Ask AI” to get actionable suggestions for improving your schema.
3. Sync & Export: Keep your diagram up-to-date with the Auto-Sync feature, which automatically reflects changes from your live database. When you're ready, export your diagram as a high-resolution image for documentation or presentations, or generate clean DDL SQL scripts to apply the changes back to your database. You can also share a public link to your diagram.

Core Features of ChartDB

• AI Diagram Assistant: Intelligently analyzes your schema to find missing relationships, suggest foreign keys, and recommend performance optimizations.
• Instant Import: Generate a full ER diagram in seconds using a single, data-safe schema query.
• Real-time Collaboration: Work with your team on the same diagram simultaneously, with all changes reflected instantly for everyone.
• Database Sync: Automatically keep your diagrams in sync with your live database to ensure documentation is never outdated.
• Broad Database Support: Full support for popular relational DBMS including MySQL, PostgreSQL, Microsoft SQL Server, SQLite, MariaDB, ClickHouse, CockroachDB, and Oracle.
• SQL & Image Export: Download diagrams as DDL SQL scripts to execute against your database or as high-quality images for embedding in documentation.
• Version History: Track every schema change over time, view diffs, and monitor updates to understand the evolution of your database.
• Cloud & Self-Hosted: Choose between a convenient, fully-featured cloud version or a free, open-source self-hosted version for complete data control.
• DBML Editor: Use the Database Markup Language (DBML) editor for a code-first approach to schema design.

Use Cases for ChartDB

• Developer Onboarding: New team members can quickly visualize and understand the entire database structure, reducing ramp-up time.
• Database Design & Prototyping: Visually create, iterate, and refine database schemas before writing any code.
• Architectural Reviews: Use clear, interactive diagrams as a focal point for technical discussions and architectural decisions.
• Automated Documentation: Generate and embed live, always-up-to-date diagrams in internal wikis (like Confluence or Notion) or technical documentation.
• Database Refactoring & Migration: Safely plan and execute complex database changes by visualizing dependencies and tracking modifications.
• Team Collaboration: Enable product managers, analysts, and developers to collaborate on a shared understanding of the data model.

Advantages of ChartDB

• Speed and Efficiency: Drastically reduces the time and effort required to map out and understand database schemas.
• Enhanced Collaboration: Real-time features break down silos and ensure the entire team is aligned.
• Improved Schema Quality: The AI Assistant proactively identifies potential issues and improvements, leading to better database design.
• Security-Focused: Imports schema without requiring direct database credentials, enhancing security.
• Flexibility: The choice between a hassle-free cloud service and a customizable, open-source self-hosted option fits any team's needs.
• Developer-Friendly: Built with a beautiful UI, programmatic update capabilities, and a strong open-source community.

Pricing and Plans

ChartDB offers a flexible pricing structure to suit different needs:

• Free Plan: $0/year for one person. Includes core features, cloud or self-hosted deployment, 2 private diagrams, 10 tables per diagram, and community support.
• Pro Plan: $12.5/month per person. Includes everything in Free, plus unlimited private diagrams, 50 tables per diagram (unlimited available as an add-on), unlimited Auto-Save calls, DBML editor, and email support.
• Teams Plan: Starts at $39/month for 5 users. Includes everything in Pro, plus real-time team collaboration, multi-device support, the AI Assistant, public diagrams, unlimited tables, and auto-sync for one database. Additional database syncs are available as an add-on.

Yearly subscriptions offer a discount equivalent to 4 months free.