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PLUGINS
USERNAME INPUT CLEANER
Username Input Cleaner logo

Username Input Cleaner

Published January 2026
   •    Updated April 2026

Plugin details

Restricts username inputs to lowercase letters, numbers and underscore.
Enforces start-with-letter, blocks double underscores and limits length (5–20).

Works by targeting an input via its HTML ID attribute.

Free

For everyone

stars   •   0 ratings
7 installs  
This plugin does not collect or track your personal data.

Other actions

Platform

Web

Contributor details

Pedro Eloy logo
Pedro Eloy
Joined 2023   •   2 Plugins
View contributor profile

Instructions

HOW TO USE
• Enable “Expose the option to add an ID attribute” in Settings

• Set an ID attribute on your Input

• Drop the plugin element anywhere on the page

• Set id_input with the same ID



RULES

• lowercase only

• starts with letter

• no __ (double underscores)

• length 5–20

Types

This plugin can be found under the following types:

Categories

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Resources

Support contact
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