What is SQL formatting?

SQL formatting is the process of converting messy SQL code into a well-structured, easy-to-read format. By adding proper indentation, line breaks, and spacing, the code becomes easier to understand and maintain. This improves code readability and helps teams maintain consistent coding standards.

Which database dialects are supported?

We support multiple mainstream database dialects including: MySQL, PostgreSQL, Oracle PL/SQL, SQL Server (T-SQL), SQLite, MariaDB, TiDB, BigQuery, and standard SQL. Each dialect has specific syntax recognition for optimal formatting results.

Will my SQL code be uploaded to a server?

No. All SQL formatting is processed locally in your browser using JavaScript. Your code never leaves your device, ensuring complete data privacy and security. This makes our tool safe for formatting sensitive database queries.

How do I customize formatting options?

You can customize formatting options in the settings panel: choose indent size (2 or 4 spaces, or tab), select keyword case (uppercase, lowercase, or preserve original), set lines between queries, and select your target database dialect for optimal results.

What is SQL minification used for?

SQL minification converts formatted SQL code into a single line by removing extra spaces and line breaks. This reduces code size for transmission and storage, making it useful for embedded systems, API calls, and scenarios where minimal size is required.

Will formatted SQL change execution results?

No. SQL formatting only changes the display format of the code (indentation, spacing, line breaks). It does not affect the SQL semantics or execution results. Your queries will produce identical results before and after formatting.

Can it handle large SQL files?

Yes. Our tool is built on a high-performance parsing engine that can handle large stored procedures, complex queries, and multi-statement scripts. The processing happens locally in your browser, so performance depends on your device capabilities.

Is this tool free to use?

Yes, SQL Formatter is completely free to use with no registration required, no ads, and no usage limits. You can format unlimited SQL code without any restrictions or hidden fees.

100% 免费且私密

SQL格式化工具

Name: SQL Formatter
Availability: InStock
Rating: 4.9 (1250 reviews)
Author: SQL Formatter

免费、快速、安全的在线SQL美化器

支持 MySQL、PostgreSQL、Oracle、SQL Server 等多种数据库方言。所有处理在浏览器本地完成，您的SQL代码永远不会离开设备。

Ctrl + Enter 格式化

格式化选项

数据库方言

缩进

关键字大小写

查询间空行数

为什么选择我们？

专业、安全、高效的SQL格式化体验

隐私优先

所有处理在浏览器本地完成，SQL代码永不离开您的设备

多方言支持

支持 MySQL、PostgreSQL、Oracle、SQL Server 等主流数据库

极速响应

基于高性能解析引擎，毫秒级完成格式化

高度可定制

缩进、大小写、换行风格等全面可控

功能集成

格式化、压缩、验证一站式解决

完全免费

无需注册、无广告、无限制使用

如何使用

粘贴SQL代码

将您的SQL代码粘贴到左侧输入框中

选择选项

选择数据库方言和格式化选项

点击格式化

点击格式化按钮，即刻获得美化结果

复制使用

一键复制格式化后的SQL代码

立即开始格式化您的SQL代码

免费使用，无需注册，保护您的数据隐私

开始使用