Best SQL Linters and Formatters in 2026

Updated 5 October 2026

In short: sqlfmt is ranked #1 of 26 as of 5 October 2026, ahead of Poor SQL and TSQLLint. The best-ranked option with a free plan is Poor SQL.

Consistent SQL style and checks for query issues are central reasons to consider a linter or formatter. Compare supported SQL dialects with automatic fixes and custom rules, then check configuration files, CI/CD integration and editor extensions for the workflow details that matter. Free-plan availability and paid-from pricing provide cost context. Sqruff and TSQLLint appear first, with pgFormatter and sqlfmt also among the early entries. Start with the SQL dialects and development environments you use, then decide how much rule configuration and automation would help your work.

26 SQL linters and formatters ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.

26ranked

14free plans on this page

5 Oct 2026last checked

SQL Linters and Formatters, ranked on how quickly a newcomer can get going. 14 of the 25 on this page can be tried for free.

1 sqlfmtFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
7.3easy start
2 Poor SQLFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
7.2easy start
3 TSQLLintFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
7.2easy start
4 JSQLFormatterFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
7.1easy start
5 SqruffFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
7.0easy start
6 SleekFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
6.9easy start
7 SQL FormatterFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
6.9easy start
8 pgFormatterFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
6.8easy start
9 sql-toolsFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
6.8easy start
10 SQLFluffFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
6.8easy start
11 SQLFormat.orgFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
6.8easy start
12 SQLintFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
6.7easy start
13 Squawk
- Free to practise on: not on record
- Free trial: not on record
- Well documented: yes
- Runs where you work: yes
6.7easy start
14 PgSanityFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
6.6easy start
15 SQL Formatter VSCodeFree plan
- Free to practise on: yes
- Free trial: not on record
- Well documented: yes
- Runs where you work: not on record
6.6easy start
16 Valk Guard
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
6.0easy start
17 SQL Pretty Printer
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.9easy start
18 SQLCheck
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: yes
5.9easy start
19 SQL Enlight
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.8easy start
20 sqlfmt
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.8easy start
21 prettier-plugin-sql-cst
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.7easy start
22 SQL Linter by SqlInt
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.7easy start
23 Prettier SQL
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.6easy start
24 Primova SQL Formatter & Linter
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.6easy start
25 Public Tools SQL Formatter
- Free to practise on: not on record
- Free trial: not on record
- Well documented: not on record
- Runs where you work: not on record
5.6easy start

Compare all 25 in a table

#	Platform	Score	Free plan	From	Free plan	Paid from	Supported SQL dialects	Automatic fixes
1	sqlfmt	7.3	Free plan	Free	Yes	—	PostgreSQL	Yes
2	Poor SQL	7.2	Free plan	Free	Yes	—	T-SQL	Yes
3	TSQLLint	7.2	Free plan	Free	Yes	—	T-SQL (Transact-SQL)	Yes
4	JSQLFormatter	7.1	Free plan	Free	—	—	Oracle, SQL Server, MySQL, MariaDB, PostgreSQL, H2, DuckDB, BigQuery, Redshift, Databricks, Snowflake	—
5	Sqruff	7.0	Free plan	Free	Yes	—	ansi, athena, bigquery, clickhouse, databricks, db2, duckdb, exasol, greenplum, hive, mariadb, materialize, mysql, oracle, postgres, redshift, snowflake, sparksql, sqlite, starrocks, teradata, trino, tsql, vertica	Yes
6	Sleek	6.9	Free plan	Free	Yes	—	PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle	Yes
7	SQL Formatter	6.9	Free plan	Free	—	—	Standard SQL, BigQuery, ClickHouse, IBM DB2, IBM DB2i, DuckDB, Apache Hive, MariaDB, MySQL, TiDB, Couchbase N1QL, Oracle PL/SQL, PostgreSQL, Amazon Redshift, SingleStoreDB, Snowflake, Spark, SQLite, SQL Server Transact-SQL, Trino/Presto	Yes
8	pgFormatter	6.8	Free plan	Free	Yes	—	SQL-92, SQL-99, SQL-2003, SQL-2008, SQL-2011, PostgreSQL; works with other databases	Yes
9	sql-tools	6.8	Free plan	Free	Yes	—	Snowflake, BigQuery, Databricks, PostgreSQL, MySQL, SQL Server	—
10	SQLFluff	6.8	Free plan	Free	Yes	—	—	—
11	SQLFormat.org	6.8	Free plan	Free	Yes	—	No specific dialects; non-validating and dialect-agnostic	—
12	SQLint	6.7	Free plan	Free	Yes	—	Standard SQL (BigQuery)	Yes
13	Squawk	6.7	No	—	—	—	PostgreSQL	No
14	PgSanity	6.6	Free plan	Free	Yes	—	PostgreSQL	—
15	SQL Formatter VSCode	6.6	Free plan	Free	—	—	BigQuery, DB2 for LUW, DB2 for IBM i, DuckDB, Hive, MariaDB, MySQL, N1QL, PL/SQL, PostgreSQL, Amazon Redshift, SingleStoreDB, Snowflake, Spark, SQLite, Trino (Presto), Transact-SQL	Yes
16	Valk Guard	6.0	No	—	Yes	—	PostgreSQL	No
17	SQL Pretty Printer	5.9	No	—	Yes	—	30+; SQL Server, Oracle, MySQL, PostgreSQL, Snowflake, BigQuery	Yes
18	SQLCheck	5.9	No	—	Yes	—	Microsoft SQL Server, MySQL, Oracle, PostgreSQL, SQLite3	No
19	SQL Enlight	5.8	No	—	—	—	T-SQL	Yes
20	sqlfmt	5.8	No	—	Yes	—	PostgreSQL, MySQL, SQLite, SQL Server (T-SQL), BigQuery	Yes
21	prettier-plugin-sql-cst	5.7	No	—	Yes	—	SQLite, BigQuery, PostgreSQL, PL/pgSQL, MySQL, MariaDB	Yes
22	SQL Linter by SqlInt	5.7	No	—	Yes	—	Standard SQL (ANSI), PostgreSQL, MySQL, SQLite, BigQuery, Snowflake, SQL Server (T-SQL)	Yes
23	Prettier SQL	5.6	No	—	Yes	—	sql, bigquery, db2, db2i, hive, mariadb, mysql, n1ql, postgresql, plsql, redshift, singlestoredb, snowflake, spark, sqlite, transactsql, tsql, trino, clickhouse; node-sql-parser databases: bigquery, db2, hive, mariadb, mysql, postgresql, transactsql, flinksql, snowflake	Yes
24	Primova SQL Formatter & Linter	5.6	No	—	Yes	—	Standard SQL, PostgreSQL, MySQL, SQLite, MariaDB, T-SQL (SQL Server), BigQuery, Snowflake	—
25	Public Tools SQL Formatter	5.6	No	—	Yes	—	Standard SQL, PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle PL/SQL, BigQuery, Snowflake, Redshift, Spark, Hive, Trino, DuckDB, ClickHouse, Db2, N1QL, SingleStore, TiDB	No

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Questions about this list

Which SQL linters and formatter is ranked first on The Geeks Club?

sqlfmt is ranked #1 of 26 with a score of 7.3. Poor SQL is second and TSQLLint third.

How many of these have a free plan?

14 of the 25 on this page publish a free plan on their own pricing pages.

How is this list ranked?

Ranked on how quickly a newcomer can get going: documentation depth, a free tier or trial, and the platforms it runs on.

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