SQLite SQL Formatter
Free online SQLite SQL formatter. Format SQLite queries and DDL with support for WITHOUT ROWID tables, STRICT tables, upsert syntax, and SQLite's flexible type system.
What is SQLite?
SQLite is a self-contained, serverless, zero-configuration relational database engine. Unlike client-server databases, SQLite stores an entire database in a single cross-platform file. It is the most widely deployed database in the world, embedded in mobile apps, browsers, operating systems, and millions of edge devices.
Despite being embedded and lightweight, SQLite supports most of standard SQL including transactions, indexes, triggers, views, and CTEs. It uses dynamic typing, allowing any column to store any type of value, which makes schema design more flexible but requires more careful validation at the application layer.
The SQLite formatter handles SQLite-specific DDL options like WITHOUT ROWID, STRICT tables, and the limited ALTER TABLE syntax, giving you clean, readable SQLite SQL ready for use in any platform.
Frequently asked questions
How does the SQLite formatter handle SQLite's flexible type system?
SQLite's relaxed column typing doesn't affect the formatter — it formats SQL syntax, not runtime behavior. All standard SQLite DDL and DML statements are supported and formatted correctly.
Will SQLite-specific options like WITHOUT ROWID be formatted?
Yes. SQLite-specific CREATE TABLE options like WITHOUT ROWID and STRICT are preserved and formatted as part of the table definition.
Does it support SQLite's limited ALTER TABLE?
The formatter handles all valid SQLite ALTER TABLE operations: ADD COLUMN, RENAME TABLE, RENAME COLUMN, and DROP COLUMN. These are the only ALTER TABLE variants SQLite supports.
How does it handle SQLite upsert syntax (INSERT OR REPLACE)?
SQLite conflict handling syntax — INSERT OR REPLACE, INSERT OR IGNORE, ON CONFLICT DO NOTHING, ON CONFLICT DO UPDATE — is formatted correctly, matching SQLite's upsert patterns.
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