How does bubble text actually work?

It is not a font. Each letter is swapped for a separate Unicode character that already exists in the Enclosed Alphanumerics blocks — for example A becomes Ⓐ (U+24B6). Because these are real characters, they copy and paste anywhere that supports Unicode.

What is the difference between outline and filled bubbles?

Outline uses the white circled characters such as Ⓐ and ①, where the letter sits inside an empty ring. Filled uses the black negative circled characters such as 🅐 and ❶, where the letter is reversed out of a solid dark disc.

Why do filled bubbles sometimes look like plain letters?

The filled uppercase letters live in a Supplementary Unicode plane (U+1F150 onward). Older systems or fonts without those glyphs may show a fallback box or plain character. Outline circles are far more widely supported.

Are lowercase and uppercase letters different?

In outline mode yes — there are separate ⓐ–ⓩ and Ⓐ–Ⓩ ranges. In filled mode Unicode only provides one set of negative circled capitals, so both upper and lower case map to the same filled letter.

Is my text uploaded anywhere?

No. The conversion is plain JavaScript running in your browser. Nothing you type is sent to a server, logged, or stored.

Bubble Text Converter

This bubble text converter wraps every letter and digit in a circle, turning ordinary words into the playful circled-letter style you see in social bios and posts. It is not a font — each character is swapped for a genuine Unicode symbol, so the result copies and pastes anywhere that supports Unicode. Choose between airy white outline circles and bold black filled circles. Everything runs locally in your browser.

How it works

Unicode reserves whole blocks for enclosed letters and numbers. The tool maps each input character to the matching code point with simple arithmetic:

A..Z  -> U+24B6 + (code - 65)   outline upper  Ⓐ..Ⓩ
a..z  -> U+24D0 + (code - 97)   outline lower  ⓐ..ⓩ
1..9  -> U+2460 + (code - 49)   outline digit  ①..⑨
0     -> ⓪

Filled mode uses the negative (black) circled ranges instead — capitals from U+1F150 and the heavy circled digits ❶–❾. Any character with no circled form, such as spaces and punctuation, passes through untouched, so word spacing is preserved.

Tips and notes

Because every bubble letter is an independent Unicode character, screen readers and search engines may not interpret it as normal text — keep important, machine-readable information in plain letters and use bubble text for decoration only. Outline circles render on almost every device; filled capitals depend on the viewer’s font supporting the supplementary plane, so preview before relying on them.