Agent Run Log

A terminal style log that streams what an agent is doing, with colored levels, a pause button, auto scroll and copy.

Download the file Open full screen

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

Live preview

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 --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>
<!--
  Agent Run Log: 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>Agent Run Log | Free AI UI Component</title>
<meta name="description" content="A terminal style log that streams what an agent is doing, with colored levels, a pause button, auto scroll and copy.">
<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%,620px);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:16px 18px}
.card h2{font-size:15px;margin:0 0 4px;color:var(--ink)}
.muted{color:var(--muted);font-size:13px}
.num{font-variant-numeric:tabular-nums}
.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}
.btn.sm{padding:5px 10px;font-size:13px;border-radius:8px}
.ib{width:28px;height:28px;display:grid;place-items:center;border:0;background:none;color:var(--muted);border-radius:7px;cursor:pointer;flex:none}
.ib:hover{background:var(--surface-2);color:var(--ink)}.ib:disabled{opacity:.3;cursor:not-allowed}
.pill{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:600;border-radius:99px;padding:2px 9px;border:1px solid}
.pill.run{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 40%,var(--line))}
.pill.ok{color:var(--good);border-color:color-mix(in srgb,var(--good) 40%,var(--line))}
.pill.bad{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 40%,var(--line))}
.pill.wait{color:var(--muted);border-color:var(--line)}
pre{margin:0;font:12.5px/1.55 var(--mono);background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;overflow-x:auto;color:var(--ink)}
.tg{width:40px;height:23px;border-radius:99px;background:var(--line);position:relative;flex:none;border:0;cursor:pointer;padding:0}
.tg::after{content:"";position:absolute;top:3px;left:3px;width:17px;height:17px;border-radius:50%;background:#fff;transition:left .15s}
.tg[aria-checked=true]{background:var(--accent)}.tg[aria-checked=true]::after{left:20px}
.wrap{width:min(100%,700px)}
.con{border-radius:12px;overflow:hidden;border:1px solid #2a2a33;background:#101015;color:#d9d9e3;box-shadow:var(--shadow)}
.bar{display:flex;align-items:center;gap:8px;padding:8px 10px;background:#18181f;border-bottom:1px solid #2a2a33;flex-wrap:wrap}
.bar b{font-size:13px;color:#fff;margin-right:auto;display:flex;align-items:center;gap:8px}
.live{width:8px;height:8px;border-radius:50%;background:#4ade80;animation:bl 1.2s ease infinite}.paused .live{background:#fbbf24;animation:none}
@keyframes bl{50%{opacity:.3}}
.bar button{border:1px solid #33333d;background:#202029;color:#e5e5ee;border-radius:7px;padding:4px 10px;font-size:12.5px;cursor:pointer}
.bar button:hover{border-color:#8b8bff}.bar button[aria-pressed=true]{background:#2d2d5a;border-color:#8b8bff}
.log{height:260px;overflow-y:auto;padding:10px 12px;font:12.5px/1.65 var(--mono);margin:0;list-style:none}
.log li{white-space:pre-wrap;overflow-wrap:anywhere}.log time{color:#8a8a99;margin-right:8px}
.INFO{color:#7dd3fc}.OK{color:#86efac}.WARN{color:#fcd34d}.ERR{color:#fca5a5}.lv{display:inline-block;width:44px;font-weight:700}
</style>
</head>
<body>
<div class="wrap"><div class="con" id="con">
  <div class="bar"><b><span class="live" aria-hidden="true"></span><span id="state">Running</span></b>
    <button type="button" id="pause" aria-pressed="false">Pause</button><button type="button" id="auto" aria-pressed="true">Auto scroll</button><button type="button" id="copy">Copy</button><button type="button" id="clr">Clear</button></div>
  <ol class="log" id="log" aria-label="Agent log" aria-live="off"></ol>
</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 LINES=[['INFO','Starting task: build weekly sales report'],['INFO','Opening sales_week_38.csv'],['OK','Loaded 1,204 rows'],['INFO','Grouping sales by region'],['WARN','3 rows have no region, marking them as Unknown'],
['OK','Created totals for 5 regions'],['INFO','Drawing bar chart'],['OK','Saved chart to report/week38.png'],['INFO','Writing summary'],['ERR','Could not reach email service, will retry in 5 seconds'],['OK','Email service is back'],['OK','Report sent to team@example.com']];
var log=document.getElementById('log'),con=document.getElementById('con'),pause=document.getElementById('pause'),auto=document.getElementById('auto'),state=document.getElementById('state'),i=0,paused=false,timer=null;
function stamp(){var d=new Date();return d.toTimeString().slice(0,8);}
function push(){if(paused)return;if(i>=LINES.length){state.textContent='Finished';clearInterval(timer);con.classList.add('paused');return;}var l=LINES[i++],li=document.createElement('li');
  li.innerHTML='<time></time><span class="lv '+l[0]+'"></span><span></span>';li.children[0].textContent=stamp();li.children[1].textContent=l[0];li.children[2].textContent=l[1];log.appendChild(li);
  if(auto.getAttribute('aria-pressed')==='true')log.scrollTop=log.scrollHeight;}
pause.addEventListener('click',function(){paused=!paused;pause.setAttribute('aria-pressed',paused);pause.textContent=paused?'Resume':'Pause';con.classList.toggle('paused',paused);if(i<LINES.length)state.textContent=paused?'Paused':'Running';});
auto.addEventListener('click',function(){auto.setAttribute('aria-pressed',auto.getAttribute('aria-pressed')!=='true');});
document.getElementById('clr').addEventListener('click',function(){log.innerHTML='';});
document.getElementById('copy').addEventListener('click',function(){var t=log.innerText,b=this;function ok(){b.textContent='Copied';setTimeout(function(){b.textContent='Copy';},1500);}
  if(navigator.clipboard&&window.isSecureContext)navigator.clipboard.writeText(t).then(ok,ok);else{var ta=document.createElement('textarea');ta.value=t;document.body.appendChild(ta);ta.select();try{document.execCommand('copy');}catch(e){}ta.remove();ok();}});
push();timer=setInterval(push,700);
</script>
</body>
</html>

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Agent Run Log

How to use it

What you get

The code

More agents and tools components

Tool Call Card

Action Approval Request

Editable Task Plan

Agent Activity Timeline

File Change Preview

Web Results Card