Token-Counter / index.html
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Update index.html
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<!DOCTYPE html>
<html lang="ja">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>LLM Token</title>
<style>
body { font-family: sans-serif; max-width: 800px; margin: 40px auto; padding: 0 20px; line-height: 1.6; background-color: #f9f9f9; }
textarea { width: 100%; height: 250px; padding: 15px; border: 2px solid #ddd; border-radius: 10px; font-size: 16px; box-sizing: border-box; }
textarea:focus { border-color: #007bff; outline: none; }
.stats { display: flex; gap: 30px; margin-top: 15px; background: white; padding: 15px; border-radius: 8px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); }
.stat-item { display: flex; flex-direction: column; }
.label { font-size: 0.9em; color: #666; }
.value { font-size: 1.5em; font-weight: bold; color: #007bff; }
</style>
</head>
<body>
<h2>LLM トークンカウンター</h2>
<textarea id="inputText" placeholder="ここに文章を入力してください..."></textarea>
<div class="stats">
<div class="stat-item">
<span class="label">トークン数</span>
<span id="tokenCount" class="value">0</span>
</div>
<div class="stat-item">
<span class="label">文字数</span>
<span id="charCount" class="value">0</span>
</div>
</div>
<script type="module">
import { getEncoding } from "https://cdn.jsdelivr.net/npm/js-tiktoken@1.0.7/+esm";
const input = document.getElementById('inputText');
const tokenDisplay = document.getElementById('tokenCount');
const charDisplay = document.getElementById('charCount');
// エンコーダーの初期化
const enc = getEncoding("cl100k_base");
input.addEventListener('input', () => {
const text = input.value;
if (text) {
// トークン化して長さを計算
const tokens = enc.encode(text);
tokenDisplay.textContent = tokens.length.toLocaleString();
} else {
tokenDisplay.textContent = "0";
}
charDisplay.textContent = text.length.toLocaleString();
});
</script>
</body>
</html>