SchemaDetect

Infer data schemas from sample files with type detection and constraint discovery

Data & AnalyticsFreemium

SchemaDetect analyzes sample data files in CSV, JSON, Parquet, and other formats to infer complete schemas including column types, nullable constraints, unique constraints, value ranges, enumerated value sets, regex patterns for string fields, and foreign key relationships between tables. The tool generates schema definitions in multiple output formats including JSON Schema, SQL DDL, Avro, and Protobuf. Data engineers use it when onboarding new data sources without documentation while migration teams use it to reverse-engineer schemas from production data exports.

Key Features

• ✓Multi-format input
• ✓Type inference
• ✓Constraint discovery
• ✓Relationship detection
• ✓Multi-format schema output