About MariaDB SQL Formatter
This page opens with the MariaDB dialect and a query that joins posts to tags and builds a comma-separated list with GROUP_CONCAT and SEPARATOR. MariaDB began as a fork of MySQL and keeps most of its syntax. It is free, needs no sign-up and runs in your browser, so nothing you enter is uploaded.
MariaDB adds features that MySQL lacks, such as sequences and some window and JSON functions. The MariaDB dialect recognises its keywords, while the MySQL page covers Oracle MySQL.
How to use MariaDB SQL Formatter
- Paste your SQL into the box. The sample query is replaced as soon as you type.
- Choose the dialect that matches your database.
- Pick the keyword case and the indent width, or switch on Minify for a one-line version.
- Read the result. If the SQL cannot be parsed you get the first line of the error instead.
- Copy the result or download it as query.sql.
Features
- Nineteen dialect options, from standard SQL to cloud warehouses.
- Keyword case: UPPER, lower or kept as written.
- Indent by 2, 4 or 8 spaces, or a tab, with standard or tabular alignment.
- Minify: removes comments and collapses whitespace, leaving strings and quoted names untouched.
- Several statements at once, separated by blank lines.
- Copy and download as a .sql file.
- Formatting happens as you type, with a short delay.
Worked examples
select p.id,p.title,group_concat(t.name order by t.name separator ', ') as tags from posts p join post_tag pt on pt.post_id=p.id join tags t on t.id=pt.tag_i... gives SELECT / p.id, / p.title, / group_concat( / t.name / ORDER BY / t.name SEPARATOR ', ' / ) AS tags / FROM / posts p / JOIN post_tag pt ON pt.post_id = p.id / JOIN tags t ON t.id = pt.tag_id / WHERE / p.published = 1 / GROUP BY / p.id / ORDER BY / p.id DESC / LIMIT / 20;
ORDER BY and SEPARATOR inside GROUP_CONCAT stay together.
Privacy: how it works
- Your SQL is formatted by code running in this browser tab. It is not sent anywhere, and the formatter library is loaded only when you open this page.
Tips
- Pick the dialect before anything else: it decides how quoted names, functions and special operators are read.
- Format a query before a code review so the diff shows real changes instead of spacing.
- Upper-case keywords make the structure stand out; lower-case suits teams that prefer it. Pick one and keep it.
- If formatting fails, look at the first line of the error. A missing quote or bracket is the usual cause.
Frequently asked questions
Is it really free?
Yes. There is no price, no trial and no credit card. Ulkaa Tool does the work with your own device, so there is no server bill to pass on to you.
Do I need an account?
No. There is no sign-up and no login. Open the page and use it. An Ulkaa account is not needed for anything on this tool.
Does it run in my browser?
Yes. Your SQL are processed by code running in your browser tab, on your own device.
Is my data uploaded?
No. Your SQL are never sent to Ulkaa or to anyone else. You can check this yourself by watching the Network tab in your browser developer tools while you use the tool.
Should I use the MySQL or MariaDB dialect?
Use the one that matches your server. For ordinary queries the output is nearly the same.
More SQL Formatter pages
- SQL FormatterPaste SQL, pick a dialect and get readable, consistently indented code.
- MySQL FormatterBeautify MySQL queries with the MySQL dialect selected.
- PostgreSQL FormatterBeautify PostgreSQL queries, including WITH clauses and :: casts.
- SQLite FormatterBeautify SQLite scripts with several statements.
- T-SQL FormatterBeautify Microsoft SQL Server queries with the T-SQL dialect.
- BigQuery SQL FormatterBeautify GoogleSQL for BigQuery, including UNNEST and project.dataset.table paths.
- Snowflake SQL FormatterBeautify Snowflake queries, including the QUALIFY clause.
- Oracle SQL FormatterBeautify Oracle queries with the PL/SQL dialect.
- Amazon Redshift SQL FormatterBeautify Redshift queries, including LISTAGG and DATEADD.
- Lowercase SQL KeywordsFormat SQL with lower-case keywords and keep your names exactly as typed.
- SQL MinifierStrip comments and collapse whitespace into a compact query.