Go from a sample payload to a typed table definition without eyeballing every field.
Paste sample JSON and get a CREATE TABLE statement with inferred types, nullability and keys — dialect-aware for Postgres, MySQL, BigQuery, Snowflake and DuckDB.
Free tier: 5 schema generations per month · or unlock forever for $4.99
Illustrative DDL — your output reflects the JSON sample and dialect you provide.
Every card is something members actually do inside Datamata — not a vague promise.
Hand it a sample row and get a typed CREATE TABLE instead of guessing every column type.
Objects and arrays are flattened or modelled with a clear note on each choice we made.
Types and syntax match the warehouse you target so the statement runs without edits.
Infers column types, nullability and likely primary keys from your sample rows
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Infers column types, nullability and likely primary keys from your sample rows
Generates dialect-correct DDL for Postgres, MySQL, BigQuery, Snowflake and DuckDB
Flattens nested objects and arrays with a clear note on each modelling choice
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$9.99/moUnlimited DDL generation across every supported dialect
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In action
Hand it a sample row and get a typed CREATE TABLE instead of guessing every column type.
Try JSON to SQLGo deeper
Objects and arrays are flattened or modelled with a clear note on each choice we made.
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