Jam SQL Studio Free SQL Developer Tools
Small, fast tools for everyday SQL work — built by the team behind Jam SQL Studio. Everything runs locally in your browser: no signup, no upload, no limits.
SQL Formatter
Format and beautify SQL with dialect-aware rules for T-SQL, PostgreSQL, MySQL, PL/SQL, and SQLite.
CSV to SQL Converter
Paste CSV or spreadsheet data and get INSERT statements or a CREATE TABLE script with inferred column types.
Connection String Converter
Parse ADO.NET, JDBC, URL-style, and libpq connection strings — and convert between the formats.
SQL IN Clause Generator
Turn a pasted list into a quoted, escaped, deduplicated IN (...) list — with Oracle's 1,000-item limit handled.
SQL Data Type Converter
Map data types across SQL Server, PostgreSQL, MySQL, Oracle, and SQLite — with precision and pitfall notes.
Why are these free?
We build Jam SQL Studio, a desktop SQL client for SQL Server, PostgreSQL, MySQL, Oracle, and SQLite. These tools solve small versions of problems the app solves in full — the same engine-specific knowledge (quoting rules, type mappings, connection string formats) that powers the app powers these pages. If a tool saves you a few minutes, the full app probably saves you more.
Each tool runs entirely client-side. Your SQL, data, and connection strings never leave your machine — the same privacy stance the desktop app takes.
Need more than a one-off tool?
Jam SQL Studio brings IntelliSense, Table Explorer, schema compare, execution plans, and an AI-ready MCP server to all five engines — in one free desktop app.
Free for personal use • No account required • Mac, Windows, Linux