Public Tools SQL Formatter

What Public Tools SQL Formatter is

Public Tools SQL Formatter is a free web tool for adjusting SQL query whitespace and keyword casing. It supports 20 dialects, including Standard SQL, PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, Oracle PL/SQL, BigQuery, Snowflake, Redshift, Spark, Hive, Trino, DuckDB, ClickHouse, Db2, N1QL, SingleStore, and TiDB. You can set keyword casing to uppercase, lowercase, or as typed, and choose two-space, four-space, or tab indentation. Semicolon-separated statements are formatted in sequence with a blank line between them. The formatter runs in your browser; the page says it makes no network requests after loading, so queries stay on your machine. After the page loads, you can disconnect and continue formatting offline. If a query has an unbalanced parenthesis or unclosed quote, the tool reports the line and column. It does not validate whether a query is correct, account for your schema, optimize queries, or lint them. Stored procedure bodies and vendor-specific scripting blocks are identified as weak spots. The tool requires no sign-up or email address, and its free plan has no query-length or daily limit. It is intended for people who want formatted SQL to copy into an editor or migration.

Who it suits

This formatter suits people working with SQL queries or migrations who want consistent whitespace and keyword casing before copying SQL into an editor. Its browser-based processing and offline use after loading may also suit people who want queries to remain on their machine.

Getting started

1. Open https://public.tools/sql-formatter in a web browser.
2. Choose the SQL dialect for your query.
3. Set keyword casing and indentation.
4. Paste or enter the query to format it.
5. Copy the formatted query into an editor or migration; disconnect after loading if you want to continue offline.

Verdict

Choose Public Tools SQL Formatter if you need a free way to reformat queries in one of its 20 supported dialects without signing up. Look elsewhere if you need SQL validation, schema-aware checks, optimization, linting, or stronger handling of stored procedures and vendor-specific scripts.