SQL playgrounds, schema designers, and Redis clients you can try online.
Format or minify SQL statements with keyword-aware line breaks.
Run SQL against an in-browser SQLite database powered by sql.js.
Practice Redis commands in an in-browser memory simulator.
Run SQL against in-browser SQLite (same engine as SQL online test).
ER diagrams with Mermaid and exportable SQL drafts for schema design.
Official Redis browser sandbox for learning commands and testing data structures interactively.
Run SQLite in the browser with shareable links and simple charts.
Simple schema designer that exports SQL for several databases.