SQL Playground
SQL Playground
Run real SQL against an in-browser SQLite database — genuine execution via sql.js (SQLite compiled to WebAssembly), not a simulator. Write schema/setup SQL, run queries and see real result sets or SQLite error messages, run EXPLAIN QUERY PLAN for real query plans, and browse live schema metadata via sqlite_master and PRAGMA introspection.
SQL Playground
Run real SQL against an in-browser SQLite database — genuine execution via sql.js (SQLite compiled to WebAssembly), not a simulator. Write schema/setup SQL, run queries and see real result sets or SQLite error messages, run EXPLAIN QUERY PLAN for real query plans, and browse live schema metadata via sqlite_master and PRAGMA introspection.
Common uses
- Run a SELECT, JOIN, or window function query against a real SQLite database
- See a genuine SQLite error message for an invalid query
- Run EXPLAIN QUERY PLAN to see how SQLite would execute a query
- Browse live table/column/foreign-key metadata after running your own CREATE TABLE statements
Frequently asked questions
Can I use SQL Playground to run a SELECT, JOIN, or window function query against a real SQLite database?
Yes. SQL Playground can run a SELECT, JOIN, or window function query against a real SQLite database, directly in your browser.
Can I use SQL Playground to see a genuine SQLite error message for an invalid query?
Yes. SQL Playground can see a genuine SQLite error message for an invalid query, directly in your browser.
Can I use SQL Playground to run EXPLAIN QUERY PLAN to see how SQLite would execute a query?
Yes. SQL Playground can run EXPLAIN QUERY PLAN to see how SQLite would execute a query, directly in your browser.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.