Confidence Badge
A small badge that tells people how sure the AI is about an answer, with a short explanation and a reminder to check sources.
One HTML file with the CSS and JavaScript inside. No library needed. MIT license.
How to use it
- Click Copy the code, or download the file.
- Paste the CSS into your stylesheet, the HTML where you want the component, and the script before the closing body tag.
- Change
--accentat 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>
<!--
Confidence Badge: 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>Confidence Badge | Free AI UI Component</title>
<meta name="description" content="A small badge that tells people how sure the AI is about an answer, with a short explanation and a reminder to check sources.">
<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 ---- */
.wrap{width:min(100%,640px);display:flex;flex-direction:column;gap:14px}
.ai{display:flex;gap:12px;align-items:flex-start}
.av{width:32px;height:32px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;flex:none}
.col{display:flex;flex-direction:column;gap:8px;min-width:0;flex:1}
.bubble{background:var(--surface);border:1px solid var(--line);border-radius:4px 16px 16px 16px;padding:11px 15px;box-shadow:var(--shadow);color:var(--text);overflow-wrap:anywhere}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px 18px}
.card h2{font-size:15px;margin:0 0 4px;color:var(--ink)}.card p{margin:0 0 12px;color:var(--muted);font-size:14px}
.ib{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:0;background:none;color:var(--muted);height:32px;min-width:32px;padding:0 8px;border-radius:8px;cursor:pointer;font-size:13px}
.ib:hover{background:var(--surface-2);color:var(--ink)}
.ib[aria-pressed=true]{color:var(--accent);background:var(--accent-soft)}
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:9px;padding:7px 14px;font-size:14px;cursor:pointer}
.btn:hover{border-color:var(--accent)}.btn.pri{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
.btn:disabled{opacity:.45;cursor:not-allowed}
.thanks{font-size:13.5px;color:var(--good);display:flex;align-items:center;gap:6px;animation:in .25s ease}
@keyframes in{from{opacity:0;transform:translateY(3px)}}.badges{display:flex;flex-wrap:wrap;gap:8px}
.bd{position:relative;display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:4px 10px 4px 8px;font-size:12.5px;font-weight:600;border:1px solid;cursor:help;background:none;font-family:inherit}
.bd i{width:8px;height:8px;border-radius:50%;background:currentColor}
.hi{color:var(--good);border-color:color-mix(in srgb,var(--good) 40%,var(--line))}
.md{color:var(--warn);border-color:color-mix(in srgb,var(--warn) 40%,var(--line))}
.lo{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 40%,var(--line))}
.tip{position:absolute;left:0;top:calc(100% + 6px);width:min(250px,75vw);background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow);padding:9px 11px;font-weight:400;font-size:12.5px;line-height:1.5;visibility:hidden;opacity:0;transition:opacity .15s;z-index:2;text-align:left}
.bd:hover .tip,.bd:focus .tip{visibility:visible;opacity:1}
</style>
</head>
<body>
<div class="wrap">
<div class="ai"><div class="av" aria-hidden="true"><svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor" aria-hidden="true"><path d="M12 2l1.8 6.2L20 10l-6.2 1.8L12 18l-1.8-6.2L4 10l6.2-1.8z"/></svg></div><div class="col"><div class="bubble">The Eiffel Tower is about 330 metres tall, including its antennas.</div>
<div class="badges"><button class="bd hi" type="button" aria-describedby="t1"><i></i>High confidence<span class="tip" role="tooltip" id="t1">This is a well known fact that many trusted sources agree on.</span></button></div></div></div>
<div class="ai"><div class="av" aria-hidden="true"><svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor" aria-hidden="true"><path d="M12 2l1.8 6.2L20 10l-6.2 1.8L12 18l-1.8-6.2L4 10l6.2-1.8z"/></svg></div><div class="col"><div class="bubble">Your plant likely needs more light. The yellow lower leaves are a common sign.</div>
<div class="badges"><button class="bd md" type="button" aria-describedby="t2"><i></i>Medium confidence<span class="tip" role="tooltip" id="t2">Several causes are possible. A photo or more details would help.</span></button></div></div></div>
<div class="ai"><div class="av" aria-hidden="true"><svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor" aria-hidden="true"><path d="M12 2l1.8 6.2L20 10l-6.2 1.8L12 18l-1.8-6.2L4 10l6.2-1.8z"/></svg></div><div class="col"><div class="bubble">The shop may open at 9am on public holidays, but this can change.</div>
<div class="badges"><button class="bd lo" type="button" aria-describedby="t3"><i></i>Low confidence<span class="tip" role="tooltip" id="t3">This could be out of date. Please check the shop's website before you go.</span></button></div></div></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;})();
</script>
</body>
</html>
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When someone marks an answer as bad, a small panel asks why, with quick reason buttons and an optional comment.
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