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Documentation Index

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MySQL UI connects directly to any MySQL server using standard credentials — no software to install on your machine beyond a modern browser. Each connection opens in its own tab, so you can work with multiple servers or databases side by side.

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Connection form fields

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host
string
default:"localhost"
required
The hostname or IP address of your MySQL server. Use localhost to connect to a MySQL server running on the same machine, or enter a remote hostname such as db.example.com.
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port
number
default:"3306"
required
The TCP port MySQL is listening on. The standard MySQL port is 3306. Change this only if your server is configured to use a non-default port.
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user
string
default:"root"
required
The MySQL username to authenticate as. This user must have permission to connect from the host running MySQL UI.
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password
string
The password for the MySQL user. Leave blank if the account has no password set.
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database
string
A specific database to open immediately after connecting. This field is optional — if you leave it blank, you can select a database from the sidebar after the connection is established.

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How to connect

1

Fill in your connection details

Enter the host, port, username, and password for your MySQL server. If you want to open a specific database straight away, enter its name in the Database field.
2

Click Connect

MySQL UI tests the connection immediately. A spinner appears in the button while the connection is being verified.
3

Start working

If the connection succeeds, a new tab opens in the tab bar and the sidebar loads your available databases. Select a database to begin browsing tables and running queries.

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If the connection fails

MySQL UI shows an error message describing what went wrong. Common causes include:
  • Wrong host or port — confirm the server address and that the port is open and reachable.
  • Wrong credentials — double-check the username and password.
  • Firewall blocking the port — ensure port 3306 (or your custom port) is accessible from the host running MySQL UI.
  • MySQL user permissions — the user must be granted access from the connecting host. Check with your database administrator if you are unsure.

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Opening multiple connections

You can maintain connections to several servers at once. Click New Connection in the tab bar to open a fresh connection form without closing any existing connections.

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Password storage

Passwords are saved in your browser’s localStorage. Anyone with access to your browser profile can retrieve them. Avoid connecting as root on production servers — use a dedicated account with only the permissions your work requires.