How does the neon glow work in CSS?

The glow is created by stacking multiple text-shadow declarations with the same hue but increasing blur radii. Outer layers are semi-transparent to simulate the soft halo of a real neon tube.

What animation options are available?

Three modes are available: Static (no animation), Flicker (irregular opacity keyframes simulating a faulty neon tube), and Pulse (smooth brightness oscillation using a CSS @keyframes animation).

Can I use this on any background colour?

The preview offers black, navy, and dark gray backgrounds. For your own project, neon effects work best on very dark backgrounds (luminance below 20%) — on light backgrounds the glow will be nearly invisible.

Which fonts work best for neon text?

Thin or light-weight fonts (font-weight 100–300) produce the most realistic look because the glow can surround a narrow stroke cleanly. The generator defaults to a system sans-serif; swap in a Google Font for more character.

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CSS Neon Glow Generator

Generate animated CSS neon glow text effects with live preview

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このツールについて

Create stunning neon sign effects for web projects entirely in CSS. Type your text, choose a neon colour, adjust glow intensity, set font size, and toggle animations — including a realistic flicker and a smooth pulse. The tool stacks multiple text-shadow layers to produce authentic glow depth. The live preview renders on a dark background (black, navy, or dark gray) so you can see the true effect. Copy the generated CSS with one click and drop it straight into your stylesheet.

使い方

1 Type the text you want to display in the text field.
2 Pick a neon colour using the colour swatch or enter a hex value.
3 Drag the Glow Intensity slider to increase or decrease the halo size.
4 Set Font Size to match your layout needs.
5 Choose an animation: Static, Flicker, or Pulse.
6 Select a background colour for the preview.
7 Click 'Copy CSS' to copy the generated code to your clipboard.

このツールについて

使い方

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