Type & emphasis

Kinetic Underline

Turn the smallest typographic gesture into a deliberate piece of choreography. Draw a sweep, brush, double rule, wave, dotted signal, or bracket without sacrificing readable text.

Free to useNo accountLocal & privateAudited output
Kinetic underlineAcid sweepPreset ready
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Underline with intent

A line can direct attention without competing for it.

Use kinetic underlines for selected claims, chapter titles, and calls to action. The motion should clarify hierarchy, then settle.

01

Six mark languages

Move between clean rules, broad brush shapes, waves, dots, doubles, and framing brackets.

02

Responsive typography

Long authored phrases fit against both container width and height.

03

Motion-safe export

Every dependency-free fragment includes a complete reduced-motion state.

Three-step workflow

How to use the Kinetic Underline studio

  1. Write one focused phrase

    Give the mark a clear target rather than underlining an entire paragraph.

  2. Tune weight and distance

    Match line thickness, offset, and width to the typeface and hierarchy.

  3. Replay at real size

    Check the draw at narrow and wide widths before copying the standalone fragment.

Questions, answered.

Is the headline still selectable?

Yes. The mark is decorative CSS and the authored headline remains ordinary text.

Can the animation play once?

Yes. Disable repeat and the line stays in its finished position.

Does it need JavaScript?

No. The exported motion is entirely CSS-driven.

What happens with reduced motion?

The completed underline appears immediately with no transition.