Open project folder
Select the folder containing your SQL files in the chat.
Workflows
sql formatter online" workflow for formatting queries
03
Format a folder of SQL files
PrefixHarbor finds your SQL files, reads them, and rewrites the layout. Changes are shown as a diff, and in Ask first mode, you accept or reject before they are written. People often ask what sql formatter do you use to keep queries clean.
List SQL files
The agent lists all SQL files in the working directory.
Edit file layout
The agent rewrites the layout and shows the diff.
Review the diff
In Ask first mode, you check the changes and approve them to save.
Example formatted query
Format this query to standard SQL style.
- read_file
query.sql1 match - edit_file
query.sqlsaved - Shell
your formatterexit 0 - Shell
your test commandexit 0
waiting for your OK before the next stepRejectAccept
formatted_query.sql
SELECT
u.name,
COUNT(o.id) AS order_count
FROM
users u
JOIN
orders o
ON u.id = o.user_id
WHERE
o.status = 'active'
GROUP BY
u.name
ORDER BY
order_count DESC;This example shows a formatted SQL query using standard conventions. It includes joins, where clauses, and grouping for readability.
How to beautify sql query with PrefixHarbor
Find and read files
The agent uses list_dir and glob to find your SQL files in the working folder, so it knows exactly which files to process now. It is ready. The read_file tool then reads each file to understand the current layout. You see the file content in the chat interface for verification. This step ensures the agent knows exactly what to format. The read_file tool returns the text for processing and you verify the content matches your expectations. You verify the content matches your expectations before any changes occur. To format sql code effectively, the agent applies the new style.
Rewrite and verify
The agent rewrites the layout using edit_file and shows the diff so you see every change before it happens and you can verify the output. Ask first. You can use the sql formatter online to clean up messy code. You can use the sql beautify feature to clean up messy code. Many users search for the best sql formatter tool to automate their daily tasks. The agent runs your test command to verify the logic is unchanged. You review the diff in Ask first mode before accepting. PrefixHarbor is an autonomous AI agent for Windows 10/11 (x64), current version 2.9.26 (released 2 Nov 2026).
