SQLito is a free online SQL query optimizer for developers and founders who need a quick second opinion before touching production. 1️⃣ Paste a query. 2️⃣ Choose SQL Server, MySQL, MariaDB, PostgreSQL, or SQLite. 3️⃣ Get database-specific suggestions. SQLito does not execute your SQL and includes redaction guidance for sensitive data. Built by Releem, the Database Advisor for teams running production databases without a dedicated DBA.