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JSON to SQL

Generate CREATE TABLE and INSERT statements from a JSON array. Supports PostgreSQL, MySQL, and SQLite dialects.

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How it works

  1. 1Paste an array of JSON objects
  2. 2Pick a dialect, table name, and statement options
  3. 3Click Generate SQL
  4. 4Download or copy the resulting script

FAQ

How are types inferred?

Types are inferred from the first row: integer → INTEGER/BIGINT, decimal number → NUMERIC/DOUBLE, boolean → BOOLEAN/TINYINT(1), string → TEXT. Nested objects and arrays become TEXT or JSON depending on dialect.

What if my objects have different keys?

All keys across all objects are unioned into the column list. Missing values in a row become NULL in the INSERT.

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