Squared Filled Text Converter

What are negative squared letters?

Negative squared letters, also known as filled or inverted squared letters, are decorative Unicode characters that display white letters on solid black square backgrounds. These characters (🅰-🆉) are part of the Enclosed Alphanumeric Supplement block in Unicode and create a bold, high-contrast appearance. Originally included in Unicode for compatibility with Japanese carrier emoji sets, these characters have become popular for creating eye-catching text in digital communication. The filled squares provide excellent visibility and a striking visual impact compared to regular text.

Tool description

The Squared Filled Text Converter transforms standard Latin letters into negative squared Unicode characters and vice versa. Input text like "HELLO" becomes "🅷🅴🅻🅻🅾" with each letter displayed as white text on a filled black square. The tool supports bidirectional conversion, allowing you to encode normal text into the filled squared format or decode squared characters back to regular letters. These Unicode characters work universally across platforms, making them perfect for social media, messaging, and any application that renders Unicode text.

Examples

Features

• Bidirectional conversion between normal and squared filled text
• Converts both uppercase and lowercase letters to filled squared format
• High-contrast white-on-black appearance for maximum visibility
• Preserves numbers, spaces, punctuation, and special characters unchanged
• Real-time conversion as you type

Use cases

• Social media emphasis: Create bold, attention-grabbing posts, comments, and captions
• Username styling: Design memorable usernames and display names that pop visually
• Warning labels: Format important notices or alerts with high-visibility text
• Brand messaging: Create consistent, bold text formatting for marketing content
• Gaming profiles: Stand out in game lobbies and chat with distinctive player names