SQL Formatter & Beautifier
SQL Formatter & Beautifier: Tokenizes SQL grammar, capitalizes SQL reserved keywords, and applies clause-level indentation.
About this sql formatter & beautifier
SQL Formatter & Beautifier — browser-based utility.
How this tool works
Implements client-side SQL Formatter & Beautifier operations. Tokenizes SQL grammar, capitalizes SQL reserved keywords, and applies clause-level indentation specifically designed for a backend database engineer formats a complex sql query into standard uppercase sql-92 dialect.
- Lexical Tokenization: Deconstructs SQL text into keywords, identifiers, string literals, operators, comments, and delimiters.
- AST Clause Chunking: Organizes tokens into relational algebra blocks (projection, join conditions, filtering predicates, aggregations).
- Dialect-Specific Pretty Printing: Applies consistent tab/space indentation, uppercase keyword normalization, and newline splitting.
- Integrity Verification: Verifies that string literals, inline comments, and quote pairs remain completely untouched.
Worked example
Scenario: Place fixed SQL keywords on separate lines.
Sample input:
Processing: Collapse whitespace and insert newlines before the implemented keyword list.
Illustrative output:
Limits and verification
Preserves string literals containing SQL keywords without alteration. Unclosed quotes or unclosed multi-line comments (/* ... */) trigger explicit syntax warnings. Does not alter query execution semantics or rewrite table names.
Examples demonstrate an expected workflow; they do not prove every input or every branch of an external specification. Check important results with an independent source before using them for money, security, compliance, safety, or irreversible file changes.
Browser processing boundary
Tool input is processed by code running in the browser and is not intentionally sent to a CZOA processing API. The page can still request ordinary site assets, analytics, or advertising when those services are enabled. Browser extensions and managed-device software remain outside this tool's control.
Relevant references
These references govern or help explain the format, protocol, or calculation used here. Listing a reference does not claim certification or complete implementation of every optional feature.
- Standard Browser Web API / Algorithm Implementation (No single external RFC/ISO standard)
Content owner: CZOA Tools · Last reviewed: 2026-09-15 · Review methodology
How to use it
- Enter, paste, or select your input data into the SQL Formatter & Beautifier workspace controls.
- Review available parameter fields, units, formats, or options configured for your task.
- Click the action button or observe immediate live calculations rendered in your browser runtime.
- Inspect the resulting output and any diagnostic messages, then copy or download the result if needed.
Frequently asked questions
How does SQL Formatter lay out input?+
It collapses whitespace, then places a newline before fixed lexical matches such as SELECT, FROM, WHERE, GROUP BY, ORDER BY, HAVING, LIMIT, JOIN variants, and ON.
How is the example SQL query formatted?+
`SELECT id,name FROM users WHERE active = 1 ORDER BY name;` becomes four lines beginning SELECT, FROM, WHERE, and ORDER BY. The formatter lays out its recognized keywords for this lexical input; it does not parse SQL dialect semantics.
Which controls and output are provided?+
The page accepts one SQL text value and returns formatted plain text through Run locally. There is no dialect selector, indentation setting, parser diagnostics, execution connection, or query-plan output.
What are SQL Formatter boundaries?+
It is not quote-aware and does not validate SQL syntax or understand dialects. Keyword-like text in quoted literals can therefore be changed by this lexical replacement approach.