100 Free AI UI Components

Prompt with Voice Input

A microphone button that turns speech into text when the browser supports it, with a pulsing record state and a timer.

Download the fileOpen full screen

One HTML file with the CSS and JavaScript inside. No library needed. MIT license.

Live preview

How to use it

  1. Click Copy the code, or download the file.
  2. Paste the CSS into your stylesheet, the HTML where you want the component, and the script before the closing body tag.
  3. Change --accent at the top of the CSS to your brand color, then connect the events to your AI service.

What you get

  • Works in light and dark mode automatically
  • Keyboard friendly, with labels for screen readers
  • Fits phones, tablets and desktops
  • Respects the reduced motion setting
  • No framework, so it works with any stack

The code

<!DOCTYPE html>
<!--
  Prompt with Voice Input: a free AI UI component
  From 100 Free AI UI Components by MM Rahman Bappi, MIT license
  https://mmrahmanbappi.github.io/100-free-ai-ui-components/

  How to use: copy the CSS, HTML and JavaScript below into your page.
  Colors are CSS variables at the top. Change --accent to match your brand.
  Light and dark themes follow the visitor's system setting, or set
  data-theme="dark" or data-theme="light" on the html element.
-->
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Prompt with Voice Input | Free AI UI Component</title>
<meta name="description" content="A microphone button that turns speech into text when the browser supports it, with a pulsing record state and a timer.">
<meta name="robots" content="noindex, follow">
<style>
:root{
  --accent:#5b5bd6; --accent-ink:#fff; --accent-soft:#ececfc;
  --bg:#f7f7f8; --surface:#fff; --surface-2:#f1f1f4; --ink:#17171c; --text:#3a3a44; --muted:#6c6c78;
  --line:#e3e3e8; --good:#15803d; --warn:#b45309; --bad:#c62828;
  --radius:14px; --shadow:0 1px 2px rgba(20,20,30,.06),0 8px 24px -12px rgba(20,20,30,.18);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif; --mono:ui-monospace,"Cascadia Code",Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --accent:#8b8bff; --accent-ink:#0f0f16; --accent-soft:#25254a;
  --bg:#0f0f13; --surface:#18181f; --surface-2:#212129; --ink:#f3f3f6; --text:#d4d4dc; --muted:#9a9aa8;
  --line:#2c2c36; --good:#4ade80; --warn:#fbbf24; --bad:#f87171; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -12px rgba(0,0,0,.6);
}}
:root[data-theme=dark]{
  --accent:#8b8bff; --accent-ink:#0f0f16; --accent-soft:#25254a;
  --bg:#0f0f13; --surface:#18181f; --surface-2:#212129; --ink:#f3f3f6; --text:#d4d4dc; --muted:#9a9aa8;
  --line:#2c2c36; --good:#4ade80; --warn:#fbbf24; --bad:#f87171; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -12px rgba(0,0,0,.6);
}
*{box-sizing:border-box}
html,body{margin:0}
body{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr);place-items:center;padding:24px;background:var(--bg);color:var(--text);font:15px/1.5 var(--font);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition:none!important}}
/* ---- component ---- */
.pb{width:min(100%,680px);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:10px 10px 10px 14px;transition:border-color .15s}
.pb:focus-within{border-color:var(--accent)}
.pb textarea{width:100%;border:0;outline:0;resize:none;background:none;min-height:24px;max-height:200px;line-height:1.5;padding:6px 0;color:var(--ink)}
.pb textarea::placeholder{color:var(--muted)}
.row{display:flex;align-items:center;gap:8px;min-width:0}
.row>span{min-width:0}
.sp{flex:1}
.ib{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;border:0;background:none;color:var(--muted);cursor:pointer}
.ib:hover{background:var(--surface-2);color:var(--ink)}
.send{width:36px;height:36px;display:grid;place-items:center;border-radius:10px;border:0;background:var(--accent);color:var(--accent-ink);cursor:pointer;transition:opacity .15s,transform .1s}
.send:disabled{opacity:.35;cursor:not-allowed}
.send:not(:disabled):active{transform:scale(.94)}
.log{width:min(100%,680px);margin-bottom:12px;display:flex;flex-direction:column;gap:8px}
.msg{align-self:flex-end;max-width:85%;background:var(--accent-soft);color:var(--ink);padding:9px 13px;border-radius:14px 14px 4px 14px;white-space:pre-wrap;word-wrap:break-word;animation:pop .2s ease}
@keyframes pop{from{opacity:0;transform:translateY(6px)}}
.wrap{width:min(100%,680px);display:flex;flex-direction:column;align-items:stretch}
.mic{position:relative}
.mic.on{background:var(--bad);color:#fff}
.mic.on::after{content:"";position:absolute;inset:-4px;border-radius:13px;border:2px solid var(--bad);animation:ring 1.2s ease-out infinite}
@keyframes ring{from{opacity:.8;transform:scale(1)}to{opacity:0;transform:scale(1.35)}}
.rec{display:none;align-items:center;gap:8px;font-size:13px;color:var(--bad);font-variant-numeric:tabular-nums}
.rec.on{display:flex}
.dot{width:8px;height:8px;border-radius:50%;background:var(--bad);animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:.2}}
.note{font-size:12px;color:var(--muted);margin-top:8px;text-align:center}
</style>
</head>
<body>
<div class="wrap">
  <form class="pb" id="f">
    <label class="sr" for="q">Message</label>
    <textarea id="q" rows="1" placeholder="Type, or press the microphone and speak"></textarea>
    <div class="row">
      <button class="ib mic" id="mic" type="button" aria-pressed="false" aria-label="Start voice input"><svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><rect x="9" y="3" width="6" height="11" rx="3"/><path d="M5 11a7 7 0 0014 0M12 18v3"/></svg></button>
      <span class="rec" id="rec" aria-live="polite"><span class="dot"></span><span id="t">0:00</span> Listening</span>
      <span class="sp"></span><button class="send" id="s" type="submit" aria-label="Send message" disabled><svg viewBox="0 0 24 24" width="18" height="18" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M12 19V5M5 12l7-7 7 7"/></svg></button>
    </div>
  </form>
  <p class="note" id="note"></p>
</div>
<script>
// Demo helper: add ?theme=dark or ?theme=light to the address to preview a theme.
(function(){var t=new URLSearchParams(location.search).get('theme');if(t)document.documentElement.dataset.theme=t;})();
function grow(t){t.style.height='auto';t.style.height=Math.min(t.scrollHeight,200)+'px'}
function post(log,text){var m=document.createElement('div');m.className='msg';m.textContent=text;log.appendChild(m);}
var q=document.getElementById('q'),s=document.getElementById('s'),mic=document.getElementById('mic'),rec=document.getElementById('rec'),t=document.getElementById('t'),note=document.getElementById('note');
var SR=window.SpeechRecognition||window.webkitSpeechRecognition,r=null,on=false,timer=null,start=0,base='';
note.textContent=SR?'Voice input uses your browser speech service.':'Voice input is not supported in this browser, so this is a demo of the recording state.';
function tick(){var sec=Math.floor((Date.now()-start)/1000);t.textContent=Math.floor(sec/60)+':'+String(sec%60).padStart(2,'0');}
function set(v){on=v;mic.classList.toggle('on',v);rec.classList.toggle('on',v);mic.setAttribute('aria-pressed',v);mic.setAttribute('aria-label',v?'Stop voice input':'Start voice input');
  if(v){start=Date.now();tick();timer=setInterval(tick,500);}else clearInterval(timer);}
mic.addEventListener('click',function(){
  if(on){if(r)r.stop();set(false);return;}
  set(true);if(!SR)return;
  r=new SR();r.interimResults=true;r.continuous=true;base=q.value?q.value+' ':'';
  r.onresult=function(e){var txt='';for(var i=0;i<e.results.length;i++)txt+=e.results[i][0].transcript;q.value=base+txt;grow(q);s.disabled=!q.value.trim();};
  r.onend=function(){set(false);};r.onerror=function(){set(false);};r.start();});
q.addEventListener('input',function(){grow(q);s.disabled=!q.value.trim();});
document.getElementById('f').addEventListener('submit',function(e){e.preventDefault();q.value='';grow(q);s.disabled=true;});
</script>
</body>
</html>

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