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Online SQL Generator

Generate common SQL queries from a compact JSON spec. Pick a dialect, paste your spec, and get a clean query you can copy. Runs fully in your browser.

Category: Data · URL: /tools/online-sql-generator.html
Input (JSON spec)
Tip: where supports operators like {">=":18}, {"in":[1,2]}, {"like":"%a%"}. Use raw_where for custom SQL.
Output (SQL)
Privacy: runs locally in your browser. No uploads, no tracking scripts.

How to use

Describe the query in JSON, then generate SQL.

  1. Choose a query type and SQL dialect (or keep Auto and specify them in JSON).
  2. Paste JSON into the input (examples are included).
  3. Click Generate SQL, then copy the result.

JSON keys: type (select/insert/update/delete), table, columns, where, raw_where, joins, order_by, limit, offset, set, values, quote_identifiers, use_params.

Keywords this page targets (natural cluster): online sql generator, sql query generator, generate select statement, generate insert statement, generate update statement, generate delete statement, sql generator from json, mysql query generator, postgresql query generator, sql server query generator, sqlite query generator, build where clause sql, sql limit vs top generator, multi row insert generator, sql parameter placeholder generator, quote identifiers sql generator, create sql from object, sql order by generator, sql join generator, sql template generator
Secondary intents covered: Generate a SELECT with WHERE, ORDER BY, LIMIT/TOP, Create a multi-row INSERT statement from structured input, Build an UPDATE statement with a safe SET + WHERE, Generate a DELETE statement with conditions, Switch query output between MySQL/Postgres/SQL Server/SQLite syntax, Use parameter placeholders instead of literal values, Quote identifiers for reserved words or special characters, Copy a one-line SQL version for logs or code

FAQ

What input format does this SQL generator use?

A simple JSON object describing the query (type, table, columns, where, values, etc.). The tool parses it locally and outputs SQL.

Does this run server-side or client-side?

Client-side only. Your JSON and generated SQL stay in your browser.

How do I add WHERE conditions?

Use where as an object (e.g., {"id":5}) or use operators like {"age":{">=":18}}. For custom SQL, use raw_where.

Can it generate parameterized SQL instead of literals?

Yes—enable Use placeholders (or set use_params:true) to output parameter markers appropriate for the dialect.

How does LIMIT work across dialects?

MySQL/PostgreSQL/SQLite use LIMIT. SQL Server uses TOP (n) (and supports OFFSET/FETCH when an ORDER BY is present).

Will it generate UPDATE/DELETE without a WHERE clause?

No. The tool blocks UPDATE/DELETE without where or raw_where to reduce accidental full-table operations.

Can I quote identifiers like column names and table names?

Yes—enable Quote identifiers to quote names using the dialect style (backticks, double quotes, or brackets).