Schema registry for CSV, TSV, JSON, AVRO and Parquet schema. Supports schema inference and GraphQL API.

A tool to automatically infer columns data types in .csv files

Automated assistance for the schema development lifecycle

NoSQL Data Engineering

Infer a JSON schema from example data, produce nonsense synthetic data (drivel) according to the schema

Migrana is a Datomic migration tool that gives you the control over how your Datomic database evolves.

Schema inference for semistructured data using Formal Concept Analysis

ColumnCore is a high-performance analytical database system designed for beginners or small projects. It supports a rich SQL dialect, runs within the same process as the application, has a vectorized query execution engine, and uses a columnar storage format.