maratoolSQL tools
SQL tools that run locally in your browser.
SQL Formatter — Beautify SQL Online
Format and beautify SQL queries instantly. Paste messy SQL and get indented, readable output.
SQL Minifier — Compress SQL Online
Minify SQL queries online. Remove comments and whitespace for smaller payloads. Free SQL minifier, runs in your browser.
SQL INSERT Generator from JSON
Generate SQL INSERT statements from JSON arrays. Paste JSON and get copy-ready INSERT queries. Free, runs in your browser.
SQL CREATE TABLE Generator from JSON
Generate CREATE TABLE SQL from JSON schema or sample rows. Infer column types instantly. Free browser tool.
SQL Query Builder — SELECT Generator
SQL Query Builder — SELECT Generator. Free, instant, runs in your browser.
Convert CSV to SQL INSERT Statements
Convert CSV to SQL INSERT Statements. Free, instant, runs in your browser.
Convert SQL INSERT to CSV
Convert SQL INSERT to CSV. Free, instant, runs in your browser.
ER Diagram Generator from Schema
ER Diagram Generator from Schema. Free, instant, runs in your browser.
Convert MongoDB JSON to SQL
Convert MongoDB JSON to SQL. Free, instant, runs in your browser.