Upside down text uses Unicode characters that visually resemble inverted letters. For example, a becomes ɐ, and m becomes ɯ. When arranged in reverse order, the result appears upside down: Hello becomes ollǝH when flipped. This creates a visual effect without using images or special fonts.
The conversion maps each letter to its upside-down Unicode equivalent. Not all letters have perfect matches, so some characters use approximations. The text is also reversed (right-to-left) to complete the upside-down appearance when rotated 180 degrees.
Upside down text works across platforms because it uses standard Unicode characters. Unlike custom fonts or images, Unicode text displays in browsers, apps, and social media consistently. This makes it ideal for cross-platform creative content.
Browser-based conversion operates locally without server uploads. Users can create upside down text privately, useful for social media drafts, messages, or personal projects without sharing content with external services.