SQL Formatter vs sqlfmt

SQL Formatter is a free, MIT-licensed JavaScript library for pretty-printing SQL queries, with a browser demo and command-line tool. Formatting options include indentation; keyword, data type, function, and identifier case; logical operator placement; expression width; query spacing; and operator spacing. It supports dialects including BigQuery, ClickHouse, DB2, DuckDB, Hive, MariaDB, MySQL, TiDB, Couchbase N1QL, Oracle PL/SQL, PostgreSQL, Redshift, SingleStoreDB, Snowflake, Spark, SQL Server Transact-SQL, and Trino/Presto. The command-line tool accepts SQL from standard input or a file, can produce formatted output, and can update a file in place. The project also lists VS Code and Vim extensions, a Prettier plugin, and an ESLint integration. Its JSON Schema supports configuration-file autocompletion and IntelliSense, with usage guides for VS Code and Zed. The library can replace prepared-statement placeholders when parameter values are supplied. It does not support stored procedures or changing the delimiter from a semicolon. Templating syntax is not directly supported; a parameter-type workaround may not cover every construct. The maintainer describes the project as being in maintenance mode, with feasible bug fixes and likely no new features.

sqlfmt has no write-up on Specifiction yet; its figures are above.