TokenVisualizer

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PeterPinetree commited on Aug 9

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c994801

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1 Parent(s): 2cb5f4f

Update index.html

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 <!doctype html>
 <html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>The Tokenizer Playground</title>
-    <script type="module" crossorigin src="/assets/index-DEbmRw68.js"></script>
-    <link rel="stylesheet" crossorigin href="/assets/index-Dhl4q2CV.css">
-  </head>
-  <body>
-    <div id="root"></div>
-  </body>
 </html>

 <!doctype html>
 <html lang="en">
+<head>
+  <meta charset="utf-8" />
+  <meta
+    name="viewport"
+    content="width=device-width, initial-scale=1"
+  />
+  <title>TokenVisualizer — Two-Pane</title>
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;600&family=JetBrains+Mono:wght@400;600&display=swap" rel="stylesheet">
+  <style>
+    :root{
+      --bg:#0b0f14;          /* black-leaning bg */
+      --text:#ffffff;        /* white */
+      --muted:#9aa4b2;
+      --accent:#38bdf8;      /* sky blue */
+      --card:#0e1624;
+      --border:#1f2a3a;
+      --chip:#111827;
+      --chip-border:#263246;
+      --chip-hover:#1a2434;
+      --mono:'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
+      --sans:Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, 'Helvetica Neue', Arial;
+    }
+    *{box-sizing:border-box}
+    body{margin:0;background:radial-gradient(900px 500px at 10% -10%, #07314a, transparent),var(--bg);color:var(--text);font-family:var(--sans)}
+    .container{max-width:1100px;margin:0 auto;padding:1.25rem}
+    header{padding-top:1.5rem}
+    h1{margin:.2rem 0 .4rem;font-size:1.9rem}
+    .sub{color:var(--muted);margin:.25rem 0 1rem}
+    .card{background:linear-gradient(180deg,#0c1624,#0a1220);border:1px solid var(--border);border-radius:14px;padding:1rem;box-shadow:0 10px 40px rgba(0,0,0,.35)}
+    label span{color:var(--muted);font-size:.9rem}
+    select,textarea{width:100%;border-radius:10px;border:1px solid var(--border);background:#0a1220;color:var(--text);padding:.7rem .85rem;outline:none}
+    select:focus,textarea:focus{border-color:var(--accent)}
+    .controls{display:grid;gap:.8rem;margin-bottom:1rem}
+    .row{display:flex;gap:.75rem;align-items:center}
+    .btn{background:var(--accent);color:#07222d;border:0;border-radius:10px;padding:.55rem .95rem;font-weight:600;cursor:pointer}
+    .btn.secondary{background:#152236;color:var(--text);border:1px solid var(--border)}
+    .status{color:var(--muted)}
+    .grid{display:grid;gap:1rem;grid-template-columns:1fr}
+    @media (min-width:900px){.grid{grid-template-columns:1fr 1fr}}
+    .head{display:flex;align-items:center;justify-content:space-between;margin-bottom:.5rem}
+    .actions .link{background:none;border:none;color:var(--accent);cursor:pointer;margin-left:.5rem}
+    .tokens{display:flex;flex-wrap:wrap;gap:.5rem;max-height:360px;overflow:auto;padding:.25rem}
+    .chip{border:1px solid var(--chip-border);background:var(--chip);padding:.35rem .5rem;border-radius:10px;font-family:var(--mono);font-size:.9rem;transition:background .12s,border-color .12s}
+    .chip:hover{background:var(--chip-hover);border-color:var(--accent)}
+    .chip.active{outline:2px solid var(--accent)}
+    pre.ids{font-family:var(--mono);background:#0a1220;border:1px solid var(--border);border-radius:10px;padding:.75rem;max-height:360px;overflow:auto;white-space:pre-wrap}
+    footer{color:var(--muted);text-align:center;padding:1.25rem 0 2rem}
+    a{color:var(--accent)}
+  </style>
+</head>
+<body>
+  <header class="container">
+    <h1>TokenVisualizer</h1>
+    <p class="sub">See tokens and token IDs at the same time. (Runs entirely in your browser.)</p>
+  </header>
+  <main class="container">
+    <section class="card controls">
+      <label>
+        <span>Model</span>
+        <select id="model">
+          <option value="Xenova/gpt2">GPT-2 (BPE)</option>
+          <option value="Xenova/llama2-tokenizer">Llama-2 (SentencePiece/BPE)</option>
+          <option value="Xenova/mistral-tokenizer">Mistral (SentencePiece/BPE)</option>
+          <option value="Xenova/gemma-tokenizer">Gemma (SentencePiece/BPE)</option>
+          <option value="Xenova/bert-base-uncased">BERT Base Uncased (WordPiece)</option>
+        </select>
+      </label>
+      <label>
+        <span>Text</span>
+        <textarea id="input" rows="3">Hello world! This is a tokenizer demo.</textarea>
+      </label>
+      <div class="row">
+        <button id="tokenize" class="btn">Tokenize</button>
+        <span id="status" class="status">Loading tokenizer…</span>
+      </div>
+    </section>
+    <section class="grid">
+      <article class="card">
+        <div class="head">
+          <h3>Tokens</h3>
+          <div class="actions">
+            <button id="copyTokens" class="link">Copy</button>
+            <button id="exportTokens" class="link">Export JSON</button>
+          </div>
+        </div>
+        <div id="tokens" class="tokens"></div>
+      </article>
+      <article class="card">
+        <div class="head">
+          <h3>Token IDs</h3>
+          <div class="actions">
+            <button id="copyIds" class="link">Copy</button>
+            <button id="exportIds" class="link">Export JSON</button>
+          </div>
+        </div>
+        <pre id="ids" class="ids"></pre>
+      </article>
+    </section>
+    <section class="container" style="text-align:right;margin:1rem 0">
+      <button id="exportCSV" class="btn secondary">Download CSV (index, token, id)</button>
+    </section>
+  </main>
+  <footer class="container">
+    <small>Built by Peter Adams • Powered by <a href="https://github.com/xenova/transformers.js" target="_blank" rel="noreferrer">Transformers.js</a></small>
+  </footer>
+  <!-- Transformers.js (ESM) -->
+  <script type="module">
+    // Load transformers.js from CDN
+    const tf = await import('https://cdn.jsdelivr.net/npm/@xenova/[email protected]/dist/transformers.min.mjs');
+    tf.env.useBrowserCache = true;
+    tf.env.allowLocalModels = false;
+    const $ = sel => document.querySelector(sel);
+    const el = {
+      model: $('#model'),
+      input: $('#input'),
+      btn: $('#tokenize'),
+      status: $('#status'),
+      tokens: $('#tokens'),
+      ids: $('#ids'),
+      copyTokens: $('#copyTokens'),
+      exportTokens: $('#exportTokens'),
+      copyIds: $('#copyIds'),
+      exportIds: $('#exportIds'),
+      exportCSV: $('#exportCSV'),
+    };
+    let tokenizer = null;
+    let last = { tokens: [], ids: [] };
+    let runId = 0;
+    function status(msg){ el.status.textContent = msg; }
+    function debounce(fn, ms=250){ let t; return (...a)=>{ clearTimeout(t); t=setTimeout(()=>fn(...a), ms); }; }
+    async function loadTokenizer(modelId){
+      status('Loading tokenizer…');
+      tokenizer = await tf.AutoTokenizer.from_pretrained(modelId);
+      status('Tokenizer ready.');
+    }
+    async function tokenize(){
+      const myRun = ++runId;
+      if (!tokenizer) await loadTokenizer(el.model.value);
+      const text = el.input.value ?? '';
+      if (!text.trim()){
+        last = { tokens: [], ids: [] };
+        render();
+        status('Type to tokenize…');
+        return;
+      }
+      status('Tokenizing…');
+      try{
+        const enc = await tokenizer.encode(text);
+        if (myRun !== runId) return; // stale run
+        last.tokens = enc.tokens;
+        last.ids = enc.ids;
+        render();
+        status(`Done. ${last.tokens.length} tokens.`);
+      }catch(err){
+        console.error(err);
+        status('Error tokenizing. See console.');
+      }
+    }
+    function render(){
+      // Tokens pane
+      el.tokens.innerHTML = '';
+      last.tokens.forEach((tok, i)=>{
+        const span = document.createElement('span');
+        span.className = 'chip';
+        span.dataset.idx = i;
+        span.textContent = tok;
+        span.addEventListener('mouseenter', ()=>highlightID(i,true));
+        span.addEventListener('mouseleave', ()=>highlightID(i,false));
+        el.tokens.appendChild(span);
+      });
+      // IDs pane
+      el.ids.textContent = last.ids.join(' ');
+      if (!last.tokens.length) status('Type to tokenize…');
+    }
+    function highlightID(i, on){
+      if (!last.ids.length) return;
+      const parts = last.ids.map((id, idx)=> (idx===i && on ? `[${id}]` : String(id)));
+      el.ids.textContent = parts.join(' ');
+      const chip = el.tokens.querySelector(`[data-idx="${i}"]`);
+      if (chip) chip.classList.toggle('active', on);
+    }
+    // Copy / Export
+    el.copyTokens.addEventListener('click', async ()=>{
+      if (!last.tokens.length) return;
+      await navigator.clipboard.writeText(last.tokens.join(' '));
+      status('Tokens copied.');
+    });
+    el.exportTokens.addEventListener('click', ()=>{
+      download('tokens.json', JSON.stringify(last.tokens, null, 2), 'application/json');
+    });
+    el.copyIds.addEventListener('click', async ()=>{
+      if (!last.ids.length) return;
+      await navigator.clipboard.writeText(last.ids.join(' '));
+      status('IDs copied.');
+    });
+    el.exportIds.addEventListener('click', ()=>{
+      download('ids.json', JSON.stringify(last.ids, null, 2), 'application/json');
+    });
+    el.exportCSV.addEventListener('click', ()=>{
+      if (!last.tokens.length) return;
+      const rows = last.tokens.map((t,i)=>[i,t,last.ids[i]]);
+      const csv = [['index','token','id'], ...rows].map(r=>r.map(csvCell).join(',')).join('\n');
+      download('tokens_and_ids.csv', csv, 'text/csv');
+    });
+    function csvCell(v){
+      const s = String(v);
+      return /[",\n]/.test(s) ? `"${s.replace(/"/g,'""')}"` : s;
+    }
+    function download(name, data, type){
+      const blob = new Blob([data], {type});
+      const url = URL.createObjectURL(blob);
+      const a = Object.assign(document.createElement('a'), {href:url, download:name});
+      a.click(); URL.revokeObjectURL(url);
+    }
+    // Events
+    el.btn.addEventListener('click', tokenize);
+    el.input.addEventListener('input', debounce(tokenize, 250));
+    el.model.addEventListener('change', async ()=>{
+      tokenizer = null;
+      await loadTokenizer(el.model.value);
+      tokenize();
+    });
+    // Initial load
+    await loadTokenizer(el.model.value);
+    tokenize();
+  </script>
+</body>
 </html>