Underline Text Generator

Add a single or double combining underline to supported Latin letters and digits. The line is part of the generated character sequence rather than an HTML or document-formatting command.

Enter up to 200 input characters, compare the results and use Copy on the option you want. The preview-size control changes the display here; it does not add a size instruction to the clipboard.

The combining-mark repertoire includes underline characters. Repeating one after each supported base character produces this tool’s effect, but joining and line placement depend on the rendering font.

For the broader distinction between encoded characters and real typeface files, read Unicode text versus fonts.

Try a short label and compare both line weights. Inspect letters with descenders and paste the result into your target field. For an editable website or document, native underline formatting usually gives more direct layout control.

Your input is transformed in this browser. The tool does not send the typed phrase to an account, publish a post or change another application’s settings.

The underline does not automatically identify a hyperlink. Keep link meaning and ordinary text decoration separate in your final layout.

Keep a plain-text version when a message needs to remain easy to read or reuse. Copyable decorative characters are not a replacement for a font-aware document or a carefully designed image.