Local by default
Formatting works without an account or network round trip. Open DevTools and you can verify it.
Local-first developer tool
Free SQL Formatter & SQL Query Beautifier
Turn compressed, inconsistent SQL into review-ready code in one keystroke. No signup, no limits, and no query sent to a server.
Instant formatting Runs in your browser 9 SQL dialects
Input SQL
Formatted output
Continue with AI
Local formatting is unlimited. AI actions are optional and use a shared allowance of 20 requests per month.
Privacy by architecture
Your SQL never leaves this tab.
Database queries can reveal table names, business logic, and internal systems. That is why RegSQL formats in a dedicated browser worker—not on an API. The page stores your chosen dialect and style, never the query itself.
Fast under load
A background worker keeps the editor responsive, even while handling long, multi-statement scripts.
Honest diagnostics
Parser errors include a useful location when available. They are never presented as full database validation.
Dialect-aware
Dialects developers actually use.
SQL has a shared core, but production queries rely on database-specific quoting, functions, data types, and operators. Select the target engine before formatting so the parser can make the right decisions.
RegSQL focuses on whitespace and casing. It does not rewrite query logic, rename aliases, or attempt risky comment removal.
01PostgreSQL
02MySQL
03MariaDB
04SQLite
05BigQuery
06SQL Server
07Snowflake
08Oracle PL/SQL
One deliberate workflow
Format first. Ask AI only when you choose.
Most messy SQL needs deterministic cleanup, not a language model. Start with a private local pass. When the problem is semantic, move the current query into an AI workflow with a clear consent step.
Format
Normalize indentation, line breaks, and keyword case without changing query intent.
Explain or repair
Send the query only after consent to understand clauses or propose a corrected version.
Generate
Describe a new data question in plain English and choose the SQL dialect you need.
Open the AI SQL workspace 20 free AI requests per month · formatting stays unlimited
A practical formatting baseline
Readable SQL is easier to review—and harder to misunderstand.
A consistent layout exposes query structure. Selected columns become scannable, joins separate from filters, and nested expressions stop disappearing into a single line. That reduces review friction without pretending that appearance guarantees correctness.
- 01Choose the target dialect.
This prevents vendor-specific syntax from being parsed as generic SQL.
- 02Pick one team style.
Two spaces and uppercase keywords are common, but consistency matters more than the exact choice.
- 03Format before review.
A stable layout makes meaningful code changes easier to see in a diff.
Questions, answered
SQL formatter FAQ
Clear boundaries are part of a trustworthy developer tool.
Is this SQL formatter really free?+
Yes. Formatting is free, unlimited, and requires no account. It runs inside your browser, so it does not create server costs or consume an AI credit.
Does RegSQL upload or store my queries?+
No. The formatter runs locally in a Web Worker and your SQL stays in the current browser tab. We save only formatting preferences such as dialect and indentation. If you explicitly choose an AI action, we ask before sending the current query.
Which SQL dialect should I choose?+
Choose the database that will run the query. Dialect selection matters for quoted identifiers, functions, operators, and vendor-specific syntax. If your SQL is portable, Standard SQL is a sensible starting point.
Does formatting validate that my query will run?+
No. Formatting can surface parsing problems, but it does not connect to your database and cannot verify tables, columns, permissions, data types, or runtime behavior. Test important queries against a safe database environment.
Can it format long or multi-statement SQL?+
Yes. RegSQL supports multi-statement input up to 1 MB. Formatting happens in a background worker so large queries do not freeze the page. Stored procedures and unusual delimiter changes may not be supported.
What is the difference between a formatter and a beautifier?+
They describe the same core job: applying consistent indentation, line breaks, and keyword casing so a query is easier to scan, review, and debug.
Can RegSQL explain or fix a query?+
Yes, as an optional AI step. Format locally first, then choose Explain or Repair. We clearly disclose when SQL will leave your browser, and AI actions use the shared free monthly allowance.
Building the next layer
Free formatting now. Smarter SQL workflows next.
Join the early-access list for schema-aware generation, saved configurations, and deeper query explanations. No fake countdowns. We will write only when there is something useful to try.