“SQL”

Demo UI of sql.js, SQLite compiled to JavaScript, for running queries on in-memory databases.

Format SQL for many dialects with configurable indentation and keyword case.

Formats T-SQL scripts with configurable layout options in the browser.

Free tool for testing SQL queries on sample schemas.

Online SQL editor for SQL Server, MySQL, MariaDB, PostgreSQL and SQLite with AI help.

Browser SQL editor covering SQLite, DuckDB, PGlite, MySQL, PostgreSQL and SQL Server, no registration to start.

Draws an entity-relationship diagram from pasted CREATE TABLE statements, locally in the page.

Runs T-SQL for SQL Server online.

Generates CREATE TABLE and INSERT statements from pasted CSV.

Checks SQL syntax and reports errors.

SQL beautifier covering many dialects such as SQL Server, Oracle, MySQL and Snowflake.

Converts SQL between database dialects such as Oracle, SQL Server, MySQL and PostgreSQL.

SQLite playground for debugging and sharing SQL snippets, with the option to load your own data.

Turns a JSON sample into SQL CREATE TABLE statements.

Formats SQL queries with indentation, with options for several SQL dialects.

Generate SQL INSERT or CREATE TABLE statements from CSV data.

Translates SQL between database dialects.

Formats SQL for SQLite, PostgreSQL or MySQL with options for indentation and keyword case.

Beautifies SQL statements loaded or pasted into the page.

Run SQL statements against a sample database to practise SELECT, JOIN and more.

Turns SQL SELECT queries into MongoDB query syntax.

Draws an ER diagram from SQL CREATE TABLE statements.

Online SQL editor that lets you run queries against example tables.

Builds SELECT queries from a visual form.