DBeaver - DBeaver - Universal Database Manager and SQL Client.
Jupyter - Project Jupyter exists to develop open-source software, open-standards, and services for interactive computing across dozens of programming languages. Ready to get started? Try it in your browser Install the Notebook.
DataGrip - Tool for SQL and databases
Kajero - Interactive JavaScript notebooks - create good-looking, responsive, interactive documents.
DbVisualizer - DbVisualizer is the universal database tool for developers, DBAs and analysts.
Calculist - The open-source, web-based thinking tool that facilitates effective thinking for solving problems.