📖 What is this tool?
DB Schema Visualizer renders CREATE TABLE SQL statements as clean ASCII box diagrams showing table names, column names and data types. Quickly understand database structure at a glance without needing a GUI database client.
💡 Example
Input
CREATE TABLE users (id INT PRIMARY KEY, name VARCHAR(255), email VARCHAR(255));
Output
┌──────────────┐
│ USERS │
├──────────────┤
│ id (INT) │
│ name (VARCHAR)│
└──────────────┘
🛠️ Common Use Cases
- Visualize database schemas from SQL files
- Generate schema documentation
- Share database structure in text form
- Review schemas during code reviews
- Understand legacy database structures
❓ Frequently Asked Questions
Can I visualize multiple tables at once? ▾
Yes — paste multiple CREATE TABLE statements separated by semicolons. Each table will be rendered as a separate box diagram in the output.
Does it show relationships between tables? ▾
The current version shows each table structure individually. Foreign key relationships are visible in the column definitions but not drawn as connecting lines.
What SQL dialects are supported? ▾
The visualizer supports standard SQL syntax compatible with MySQL, PostgreSQL and SQLite CREATE TABLE statements. Backtick and quote-wrapped identifiers are handled automatically.
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Your data stays private. All processing happens entirely in your browser. Nothing is ever sent to our servers. You can use this tool offline after the page loads.