SQL Editor

This tool enables writing, executing, and validating SQL queries against one or more database connections within a browser. It supports multiple dialects, including PostgreSQL, MySQL/MariaDB, SQL Server, and SQLite, and provides a dialect-aware editor with syntax highlighting to reduce errors. The execution engine returns structured result sets or detailed error messages, along with execution timing data. Core features include connection management, a searchable results grid with column metadata, and robust error reporting. Optional capabilities such as explain plans, parameter binding, query history, snippet libraries, and exporting results as CSV or JSON are provided to improve iteration speed and collaboration. The tool emphasizes safe usage by respecting connection permissions and applying safeguards for long-running statements. Under the hood, queries are parsed per dialect, executed against the selected data source, and results are formatted for display, including proper handling of nulls and locale-specific date/time representations. It is designed for analysts, engineers, and educators who need a reproducible environment to test SQL logic, teach concepts, or verify data transformations without configuring local tooling.