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Advanced SQL Formatter

Format advanced SQL with 18 explicit dialects, configurable keyword and type casing, tabular indentation and local syntax-aware review without execution.

Choose your path

Built around the job you need to finish

Prepare a complex dialect-specific SQL formatting diff with meaningful style controls and no query execution, literal corruption or appended report.

Analytics engineer

Review CTEs, windows and vendor syntax.

Select PostgreSQL/BigQuery, format CTE and quoted literal examples, compare parameters and copy SQL.

Dialect tokens and literal values survive; output contains only SQL.

Database code reviewer

Apply a team layout without recasing identifiers.

Compare keyword/function/type cases, tabular indentation, expression width and AND/OR placement.

Style changes are explicit and do not imply query correctness or performance.

Keyboard query author

Recover from unsupported syntax on desktop or phone.

Submit a wrong-dialect dollar string, choose the correct dialect, rerun and copy the current result.

Named controls and readable errors support recovery with no stale output.

Authoritative checks for this tool

Outputs and checklists are planning aids. Review the linked current authorities and the records, terms, instructions, and requirements that apply to your exact situation before a consequential decision.

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Reference & details

How it works

Choose a real dialect

SQL Formatter 15.8.2 supports the 18 dialect choices in this workspace, including PostgreSQL, MySQL, T-SQL, BigQuery and Snowflake. Standard SQL is a common subset, not automatic dialect detection.

Control the formatting diff

Choose keyword, built-in function and type casing independently, retain identifier case, set indentation style, expression width, logical-operator placement and statement spacing. Formatting never binds parameters or connects to a database.

Verify beyond formatting

A successful format does not prove SQL validity, performance, safety or stored-procedure support. Unsupported vendor/template syntax may fail. A disposable worker stops after 10 seconds; input/output limits are 100,000/500,000 characters.

Updated: August 2026

Example Scenarios

Format a PostgreSQL CTE with ranking and dollar-quoted strings, then compare literal values and parameters.

Compare standard and tabular indentation, function/type case and logical-operator placement without changing identifiers.

Resolve a dollar-string or vendor-token error by selecting the intended dialect, then rerun and test in the real database.

FAQ

This workspace adds 18 dialect choices, tabular alignment, function/type casing, short-expression width, logical-operator placement and spacing between queries. It still does not execute or optimize SQL.

No. A formatter can accept incomplete SQL or reject vendor extensions. Use your database parser, tests and execution-plan tools separately.

Identifier case is preserved and no parameter values are substituted. Keyword, recognized function and data-type casing follow your explicit choices; review the diff before use.

No. It is a target for deciding when short expressions stay together. Long literals and other constructs can exceed it.

It is processed in a local worker, with no automatic history or Project save. Engine assets may need a connection on first use. Copied/downloaded SQL contains only the formatted query, not statistics.

About Advanced SQL Formatter

Prepare complex SQL for review using explicit dialect and layout settings. Keep parameters unbound, literals intact and statistics outside the copied query.