100 Free AI UI Components

AI Error States

Friendly error screens for common AI problems: no internet, the service is busy, and a message that is too long. Each says what to do next.

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>
<!--
  AI Error States: 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>AI Error States | Free AI UI Component</title>
<meta name="description" content="Friendly error screens for common AI problems: no internet, the service is busy, and a message that is too long. Each says what to do next.">
<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 ---- */
a{color:var(--ink);font-weight:600}
.wrap{width:min(100%,600px);display:flex;flex-direction:column;gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 20px}
.card h2{font-size:15.5px;margin:0 0 4px;color:var(--ink)}
.muted{color:var(--muted);font-size:13px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:8px 14px;font-size:14px;font-weight:600;cursor:pointer}
.btn:hover{border-color:var(--accent)}.btn.pri{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn:disabled{opacity:.45;cursor:not-allowed}
.ib{width:30px;height:30px;display:grid;place-items:center;border:0;background:none;color:var(--muted);border-radius:8px;cursor:pointer}.ib:hover{background:var(--surface-2);color:var(--ink)}
kbd{font:600 12px var(--mono);background:var(--surface-2);border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 7px;color:var(--ink)}
dialog{border:0;border-radius:18px;padding:0;background:var(--surface);color:var(--text);box-shadow:0 30px 80px -20px rgba(0,0,0,.5);width:min(92vw,460px)}
dialog::backdrop{background:rgba(10,10,20,.45)}
.tabs{display:flex;gap:6px;flex-wrap:wrap;justify-content:center}
.tabs button{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:5px 12px;font-size:13px;cursor:pointer}
.tabs button[aria-selected=true]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.st{text-align:center;padding:26px 22px}
.st .ic{width:60px;height:60px;border-radius:50%;margin:0 auto 12px;display:grid;place-items:center;background:var(--surface-2);color:var(--ink)}
.st h2{font-size:18px}.st p{margin:6px auto 16px;max-width:380px;font-size:14px}
.st .acts{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.spin{width:14px;height:14px;border-radius:50%;border:2px solid var(--line);border-top-color:var(--accent);animation:sp .8s linear infinite}@keyframes sp{to{transform:rotate(360deg)}}
</style>
</head>
<body>
<div class="wrap">
  <div class="tabs" role="tablist" aria-label="Error type"><button role="tab" aria-selected="true" data-k="offline">Offline</button><button role="tab" aria-selected="false" data-k="busy">Service busy</button><button role="tab" aria-selected="false" data-k="long">Message too long</button></div>
  <div class="card st" id="st" role="tabpanel" aria-live="polite"></div>
</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;})();
var S={offline:['<svg viewBox="0 0 24 24" width="28" height="28" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M2 8.5a15 15 0 0120 0M5 12a10 10 0 0114 0M8.5 15.5a5 5 0 017 0M12 19h.01M3 3l18 18"/></svg>','You are offline','Your message is saved. It will send as soon as you are back online.','Try again','View saved message'],
busy:['<svg viewBox="0 0 24 24" width="28" height="28" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><circle cx="12" cy="12" r="9"/><path d="M12 7v5l3 2"/></svg>','The service is busy right now','Many people are using the assistant. Please wait a moment and try again.','Try again','Check service status'],
long:['<svg viewBox="0 0 24 24" width="28" height="28" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true"><path d="M5 4h10l4 4v12H5z"/><path d="M9 12h6M9 16h4"/></svg>','Your message is too long','Your message is about 14,000 words. Shorten it, or split it into parts and send them one by one.','Shorten it for me','Split into parts']};
var st=document.getElementById('st'),tabs=[].slice.call(document.querySelectorAll('.tabs button'));
function show(k){var s=S[k];tabs.forEach(function(t){t.setAttribute('aria-selected',t.dataset.k===k);});
  st.innerHTML='<div class="ic">'+s[0]+'</div><h2></h2><p class="muted"></p><div class="acts"><button class="btn pri" type="button" id="a1"></button><button class="btn" type="button"></button></div>';
  st.querySelector('h2').textContent=s[1];st.querySelector('p').textContent=s[2];var b=st.querySelectorAll('button');b[0].textContent=s[3];b[1].textContent=s[4];
  b[0].onclick=function(){b[0].disabled=true;b[0].innerHTML='<span class="spin" aria-hidden="true"></span>Working';setTimeout(function(){st.innerHTML='<h2>All set</h2><p class="muted">That worked. You can keep chatting.</p>';},1100);};}
tabs.forEach(function(t){t.addEventListener('click',function(){show(t.dataset.k);});});show('offline');
</script>
</body>
</html>

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