SQL Formatter
Format SQL queries for PostgreSQL, MySQL, Oracle, SQL Server, and more with advanced customization.
JSON Formatter
Validate, beautify, and minify JSON data. Support for sorting keys and tree view visualization.
XML Formatter
Beautify XML files and ensure they are well-formed. Clean indentation and syntax highlighting.
Every tool and guide
Each page opens the tool set up for one specific job, followed by reference notes for it — what the output looks like, what it handles, and where it falls short.
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All articlesHow It Works
Format any code in four simple steps — no sign-up, no installation, no data sent to servers.
Paste Your Code
Copy and paste your SQL query, JSON response, or XML document into the editor. Any size, any complexity.
Choose Your Options
Select your SQL dialect, indentation size, keyword casing, or any of our advanced formatting options.
Instant Formatting
Click format and see your code beautifully structured in milliseconds. No network round-trip needed.
Copy and Go
Copy the formatted output with one click. Paste directly into your IDE, PR, or documentation.
Why Developers Choose Pretty Format
Private & Secure
All processing happens 100% in your browser. Your data never leaves your machine.
Lightning Fast
Instant results as you type or paste. Optimized for performance and responsiveness.
Developer First
Advanced options for every tool to match your team's specific style guide.
The Developer's Guide to Code Formatting
Code formatting is not a cosmetic concern — it is a professional standard. Unformatted SQL queries, minified JSON payloads, and collapsed XML documents are among the most common sources of bugs that go undetected during code review. When whitespace and indentation are removed, the human eye struggles to parse the logical structure of a query, often missing issues like incorrect JOIN conditions, mismatched brackets, or accidental cross-joins that could return millions of unexpected rows.
Pretty Format was built on the belief that every developer deserves access to world-class formatting tools without compromises. Unlike many online tools that send your code to a remote server for processing — exposing potentially sensitive schema information, API secrets embedded in JSON payloads, or proprietary query logic — all of Pretty Format's processing runs entirely within your browser using native JavaScript APIs. This architecture means your data is private by design, not by policy.
SQL: The Language of Data
SQL remains the most widely used data language in the world, from small applications to large data warehouses. The formatter covers 16 dialects, from PostgreSQL, MySQL, SQL Server (T-SQL) and Oracle (PL/SQL) to warehouse engines such as BigQuery, Snowflake and Redshift.
JSON: The API Standard
JSON is the backbone of modern APIs and configuration files. Our formatter validates, beautifies, and optionally minifies JSON, helping you quickly understand deeply nested data structures and catch syntax errors before they reach production.
XML: Enterprise and Legacy Systems
XML remains the standard for enterprise systems, SOAP APIs, Android manifests, and countless configuration formats. Our XML formatter handles complex namespaces, CDATA sections, and DTD declarations, giving you clean, readable output every time.