Text that reveals itself character-by-character using a CSS steps() width animation on an overflow-hidden monospace container, with an optional blinking cursor. No JavaScript required.
| Surface | Note |
|---|---|
| Renders as static completed text; no animation | |
| google-chat | CSS animation not supported; renders as plain text |
| Field | Type | |
|---|---|---|
| text | string. The text to type out. | required |
| speed | "slow" | "normal" | "fast" (optional, default "normal") | optional |
| cursor | bool. Show blinking cursor after typing. Default true. | optional |
| color | string. Text colour. Default "#0f172a". | optional |
| size | string. Font size e.g. "1.4rem". Default "1.4rem". | optional |
| weight | string. Font weight. Default "600". | optional |
| background | string. Container background. Default "#f8fafc". | optional |
{
"type": "typewriter",
"text": "A concise description of the content."
}{
"identifier": "urn:air:a2uicatalog.ai:atom:typewriter",
"displayName": "Typewriter",
"type": "application/vnd.a2ui.atom+json",
"url": "https://a2uicatalog.ai/atoms/typewriter",
"capabilities": [
"web",
"google-meet-stage",
"google-apps-script-web",
"mcp-apps"
],
"description": "Text that reveals itself character-by-character using a CSS steps() width animation on an overflow-hidden monospace container, with an optional blinking cursor. No JavaScript required.",
"representativeQueries": [
"show a CSS character-by-character typewriter reveal with optional cursor",
"text that reveals itself character-by-character using a css steps() width animation on an overflow-h",
"render a typewriter"
]
}The renderer is an open-source Google Apps Script web app. Deploy your own instance in 4 commands — you own the URL, no dependency on the demo endpoint.
git clone https://github.com/a2uicatalog/a2ui
cd a2ui/apps-script-surface/gas-wired-renderer
clasp push && clasp deploy