CSV to SQL

A spreadsheet export is not a schema. Column types, nullability, and a primary key all have to be worked out by hand before the data is usable in a real database, and that guesswork is where most import scripts go wrong.

SchemaSnap reads every column in your CSV and infers the narrowest safe SQL type for it: integers get promoted to bigint when the values are large, decimals keep their scale, and short repeated labels become an enum instead of open text. The result is a CREATE TABLE statement you can run as-is. The tool below runs entirely in your browser; nothing you paste is uploaded anywhere.

CREATE TABLE customers (
  id SERIAL PRIMARY KEY,
  name VARCHAR(32) NOT NULL,
  email VARCHAR(32) NOT NULL,
  plan VARCHAR(32) NOT NULL,
  price NUMERIC(10,2) NOT NULL,
  signup_date DATE NOT NULL
);

Try it