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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>Base64 Encoder — DevDunia Comics</title>
<meta name="description" content="Convert text and binary data to Base64 encoding format. Free online Base64 encoder tool for developers.">
<meta property="og:title" content="Base64 Encoder — DevDunia Comics">
<meta property="og:description" content="Convert text and binary data to Base64 encoding format. Free online Base64 encoder tool.">
<meta property="og:image" content="https://devdunia.com/images/logo.png">
<link rel="icon" type="image/png" href="images/logo.png">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link href="https://fonts.googleapis.com/css2?family=Bangers&family=Comic+Neue:wght@400;700&family=Space+Mono:wght@400;700&display=swap" rel="stylesheet">
<style>
:root {
--ink:#1a1410; --paper:#fdf3e3; --paper2:#fbe9cc;
--red:#e63946; --blue:#1d6fb8; --yellow:#ffd23f;
--green:#3fa34d; --pink:#ff6b9d; --purple:#8a4fff; --orange:#ff8c42;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Comic Neue',cursive;font-weight:400;color:var(--ink);background-color:var(--paper);background-image:radial-gradient(var(--ink) 0.5px,transparent 0.6px);background-size:14px 14px;background-attachment:fixed;min-height:100vh}
.paper-overlay{position:fixed;inset:0;background:rgba(253,243,227,.78);pointer-events:none;z-index:0}
/* masthead injected by masthead.js */
/* ── PAGE WRAP (centered, shows halftone bg) ── */
.page-wrap{position:relative;z-index:1;max-width: 1240px;margin:0 auto;padding:20px 32px 60px}
/* hero styles injected by hero-banner.js */
/* ── PANEL ── */
.panel{background:var(--paper);border:4px solid var(--ink);border-radius:6px;box-shadow:7px 7px 0 var(--ink);overflow:hidden;margin-bottom:22px}
.panel-header{background:var(--ink);color:var(--yellow);font-family:'Bangers',cursive;font-size:1.2rem;letter-spacing:2px;padding:8px 16px;display:flex;align-items:center;justify-content:space-between;gap:10px}
.panel-tag{font-family:'Space Mono',monospace;font-size:.65rem;font-weight:700;background:var(--yellow);color:var(--ink);padding:2px 7px;border-radius:3px}
.panel-body{padding:18px 20px}
/* ── TEXTAREA ── */
.comic-textarea{width:100%;background:#fff;border:3px solid var(--ink);border-radius:6px;padding:12px 14px;font-family:'Space Mono',monospace;font-size:.82rem;color:var(--ink);line-height:1.6;resize:vertical;min-height:90px;outline:none;transition:border-color .15s}
.comic-textarea:focus{border-color:var(--green)}
.comic-textarea::placeholder{color:#aaa;font-style:italic}
.comic-textarea[readonly]{background:var(--paper2);cursor:default}
/* ── BUTTONS ── */
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.btn{font-family:'Bangers',cursive;font-size:1.1rem;letter-spacing:1px;border:3px solid var(--ink);border-radius:6px;padding:8px 20px;cursor:pointer;box-shadow:4px 4px 0 var(--ink);transition:transform .1s,box-shadow .1s;text-transform:uppercase}
.btn:active{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink)}
.btn-primary{background:var(--green);color:#fff}
.btn-danger{background:var(--red);color:#fff}
/* ── ERROR BUBBLE ── */
.error-bubble{display:none;position:relative;background:#fff0f0;border:3px solid var(--red);border-radius:14px;padding:10px 14px;margin-top:12px;font-size:.9rem;font-weight:700;color:var(--red)}
.error-bubble::before{content:'';position:absolute;top:-16px;left:22px;border-width:0 10px 16px;border-style:solid;border-color:transparent transparent var(--red)}
.error-bubble::after{content:'';position:absolute;top:-11px;left:24px;border-width:0 8px 12px;border-style:solid;border-color:transparent transparent #fff0f0}
.error-bubble.show{display:block}
/* ── STATS ── */
.stats-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.stat-chip{font-family:'Space Mono',monospace;font-size:.72rem;font-weight:700;padding:4px 10px;border:2px solid var(--ink);border-radius:4px;box-shadow:2px 2px 0 var(--ink);display:flex;align-items:center;gap:5px}
.stat-chip .stat-label{opacity:.65;font-weight:400}
.chip-blue{background:var(--blue);color:#fff}
.chip-green{background:var(--green);color:#fff}
.chip-purple{background:var(--purple);color:#fff}
.chip-yellow{background:var(--yellow);color:var(--ink)}
/* ── OUTPUT COPY ── */
.output-wrap{position:relative}
.copy-btn{position:absolute;top:8px;right:8px;font-family:'Bangers',cursive;font-size:.95rem;letter-spacing:1px;background:var(--ink);color:var(--yellow);border:2px solid var(--ink);border-radius:4px;padding:3px 10px;cursor:pointer;box-shadow:2px 2px 0 rgba(0,0,0,.4);transition:transform .1s}
.copy-btn:active{transform:translate(1px,1px)}
/* ── EXAMPLES ── */
.examples-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.example-card{background:var(--paper2);border:3px solid var(--ink);border-radius:6px;box-shadow:4px 4px 0 var(--ink);padding:10px 12px;cursor:pointer;transition:transform .1s,box-shadow .1s}
.example-card:hover{transform:translate(-2px,-2px);box-shadow:6px 6px 0 var(--ink)}
.example-card:active{transform:translate(1px,1px);box-shadow:2px 2px 0 var(--ink)}
.example-title{font-family:'Bangers',cursive;font-size:1rem;letter-spacing:1px;margin-bottom:4px}
.example-plain{font-family:'Space Mono',monospace;font-size:.68rem;color:var(--green);word-break:break-all;margin-bottom:2px}
.example-arrow{font-size:.75rem;color:var(--ink);opacity:.55}
/* ── SECTION LABEL ── */
.section-label{font-family:'Bangers',cursive;font-size:.95rem;letter-spacing:1px;color:var(--ink);margin-bottom:6px;text-transform:uppercase}
/* ── HOW IT WORKS ── */
.how-steps{display:flex;flex-direction:column;gap:10px}
.how-step{display:flex;align-items:flex-start;gap:12px}
.step-dot{width:28px;height:28px;border-radius:50%;border:3px solid var(--ink);display:flex;align-items:center;justify-content:center;font-family:'Bangers',cursive;font-size:1rem;color:#fff;flex-shrink:0;box-shadow:2px 2px 0 var(--ink)}
.how-step p{font-size:.88rem;line-height:1.5;padding-top:2px}
.how-step code{font-family:'Space Mono',monospace;font-size:.75rem;background:var(--ink);color:var(--yellow);padding:1px 5px;border-radius:3px}
/* ── B64 COLLAPSIBLE EXAMPLE ── */
.b64-example>summary{list-style:none;cursor:pointer;user-select:none;gap:8px}
.b64-example>summary::-webkit-details-marker{display:none}
.b64-chevron{transition:transform .2s;margin-left:auto;flex-shrink:0}
.b64-example[open] .b64-chevron{transform:rotate(180deg)}
.b64-step-title{font-family:'Bangers',cursive;font-size:1rem;letter-spacing:2px;color:var(--ink);margin:20px 0 10px;padding:4px 0 6px;border-bottom:3px dashed rgba(26,20,16,.22);display:flex;align-items:center;gap:8px}
.b64-step-title:first-child{margin-top:0}
.b64-ascii-table{width:100%;border-collapse:collapse;font-family:'Space Mono',monospace;font-size:.78rem;border:3px solid var(--ink);border-radius:4px;overflow:hidden;margin-bottom:4px}
.b64-ascii-table th{background:var(--ink);color:var(--yellow);padding:6px 14px;text-align:center;font-family:'Bangers',cursive;letter-spacing:1px;font-size:.9rem}
.b64-ascii-table td{padding:5px 14px;text-align:center;border-bottom:2px solid rgba(26,20,16,.12)}
.b64-ascii-table tr:last-child td{border-bottom:none}
.b64-ascii-table tr:nth-child(odd) td{background:var(--paper2)}
.b64-chunk{border:3px solid var(--ink);border-radius:6px;overflow:hidden;box-shadow:5px 5px 0 var(--ink);margin-bottom:16px}
.b64-chunk-hdr{background:var(--ink);color:var(--yellow);font-family:'Bangers',cursive;font-size:1rem;letter-spacing:2px;padding:6px 14px}
.b64-chunk-body{padding:14px 16px;background:var(--paper)}
.b64-char-row{display:flex;align-items:center;gap:5px;margin-bottom:6px;flex-wrap:wrap}
.b64-char-name{font-family:'Bangers',cursive;font-size:1.1rem;width:20px;flex-shrink:0;color:var(--ink)}
.b64-ascii-badge{background:var(--ink);color:var(--yellow);font-family:'Space Mono',monospace;font-size:.68rem;padding:1px 6px;border-radius:3px;margin-right:4px;flex-shrink:0}
.b64-bg{font-family:'Space Mono',monospace;font-size:.78rem;letter-spacing:.5px;font-weight:700;color:#fff;padding:2px 5px;border-radius:3px}
.b64-divider{font-family:'Bangers',cursive;font-size:.85rem;color:var(--ink);opacity:.55;margin:10px 0 10px;letter-spacing:1px}
.b64-sixbit-row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.b64-sixbit{display:flex;flex-direction:column;align-items:center;gap:3px}
.b64-sixbits{font-family:'Space Mono',monospace;font-size:.76rem;font-weight:700;letter-spacing:1px;padding:4px 8px;border-radius:4px;border:2px solid var(--ink);color:#fff;white-space:nowrap}
.b64-sixval{font-family:'Space Mono',monospace;font-size:.65rem;color:var(--ink);opacity:.7}
.b64-sixeq{font-family:'Bangers',cursive;font-size:.75rem;color:var(--ink);opacity:.45}
.b64-sixchar{font-family:'Bangers',cursive;font-size:2.2rem;color:var(--ink);line-height:1}
.b64-pad-char{font-family:'Bangers',cursive;font-size:2.2rem;color:var(--red);line-height:1}
.b64-chunk-result{display:flex;gap:10px;align-items:center;margin-top:12px;padding:10px 14px;background:rgba(255,210,63,.18);border:2px dashed rgba(255,210,63,.7);border-radius:6px}
.b64-chunk-result-label{font-family:'Bangers',cursive;font-size:.88rem;color:var(--ink);opacity:.6;letter-spacing:1px;white-space:nowrap}
.b64-chunk-result-chars{font-family:'Bangers',cursive;font-size:1.9rem;color:var(--ink);letter-spacing:5px}
.b64-final{background:var(--ink);border-radius:8px;padding:22px;text-align:center;margin-top:8px}
.b64-final-label{font-family:'Bangers',cursive;font-size:.85rem;letter-spacing:3px;color:rgba(255,255,255,.55);margin-bottom:4px}
.b64-final-input{font-family:'Space Mono',monospace;font-size:1rem;color:rgba(255,255,255,.6);margin-bottom:6px}
.b64-final-output{font-family:'Space Mono',monospace;font-size:1.7rem;color:var(--yellow);letter-spacing:4px;word-break:break-all;text-shadow:2px 2px 0 rgba(0,0,0,.3)}
/* ── MOBILE ── */
@media(max-width:860px){
/* hero mobile handled by hero-banner.js */
/* masthead mobile handled by masthead.js */
.examples-grid{grid-template-columns:1fr}
.page-wrap{padding:20px 16px 60px}
}
</style>
</head>
<body>
<div class="paper-overlay"></div>
<div data-masthead></div>
<div class="page-wrap">
<!-- HERO: config drives title, chapter, icon, desc, badges, color -->
<div data-tool-hero
data-title="Base64 Encoder"
data-chapter="01"
data-category="Encoders & Decoders"
data-icon="🔒"
data-desc="Transform any text into Base64 instantly. No server, no tracking — pure client-side encoding right in your browser."
data-color="green"
data-badges="CLIENT-SIDE,FREE,NO SERVER,INSTANT"
data-badge-colors="white,yellow,ink,red">
</div>
<!-- INPUT PANEL -->
<div class="panel">
<div class="panel-header">✏ TYPE YOUR TEXT HERE <span class="panel-tag">INPUT</span></div>
<div class="panel-body">
<div class="section-label">Plain Text to Encode</div>
<textarea id="base64-input" class="comic-textarea" rows="6" placeholder="Enter text or binary data to encode to Base64... e.g. Hello World"></textarea>
<div class="btn-row">
<button id="encode-btn" class="btn btn-primary">⚡ Encode!</button>
<button id="clear-btn" class="btn btn-danger">🗑 Clear</button>
</div>
<div id="error-bubble" class="error-bubble">💥 <span id="error-msg">Please enter some text!</span></div>
</div>
</div>
<!-- OUTPUT PANEL -->
<div class="panel" id="output-panel" style="display:none;">
<div class="panel-header">📤 BASE64 ENCODED OUTPUT <span class="panel-tag">OUTPUT</span></div>
<div class="panel-body">
<div class="section-label">Base64 Result</div>
<div class="output-wrap">
<textarea id="base64-output" class="comic-textarea" rows="7" readonly></textarea>
<button id="copy-btn" class="copy-btn">📋 COPY</button>
</div>
<div class="stats-row" id="stats-row">
<div class="stat-chip chip-blue"><span class="stat-label">ORIGINAL</span><span id="stat-orig-size">—</span></div>
<div class="stat-chip chip-green"><span class="stat-label">B64 SIZE</span><span id="stat-b64-size">—</span></div>
<div class="stat-chip chip-purple"><span class="stat-label">OVERHEAD</span><span id="stat-overhead">—</span></div>
<div class="stat-chip chip-yellow"><span class="stat-label">PADDING</span><span id="stat-padding">—</span></div>
</div>
</div>
</div>
<!-- EXAMPLES -->
<div class="panel">
<div class="panel-header">📚 TRY AN EXAMPLE — CLICK TO LOAD! <span class="panel-tag">EXAMPLES</span></div>
<div class="panel-body">
<div class="examples-grid">
<div class="example-card" data-plain="Hello World">
<div class="example-title" style="color:var(--green);">Simple Text</div>
<div class="example-plain">"Hello World"</div>
<div class="example-arrow">↓ SGVsbG8gV29ybGQ=</div>
</div>
<div class="example-card" data-plain='{"name":"Ali","tool":"DevDunia"}'>
<div class="example-title" style="color:var(--blue);">JSON Object</div>
<div class="example-plain">{"name":"Ali","tool":"DevDunia"}</div>
<div class="example-arrow">↓ eyJuYW1lIjoiQWxp...</div>
</div>
<div class="example-card" data-plain="https://devdunia.com">
<div class="example-title" style="color:var(--purple);">URL</div>
<div class="example-plain">https://devdunia.com</div>
<div class="example-arrow">↓ aHR0cHM6Ly9kZXZk...</div>
</div>
<div class="example-card" data-plain="SecretMessage123">
<div class="example-title" style="color:var(--red);">Secret Data</div>
<div class="example-plain">"SecretMessage123"</div>
<div class="example-arrow">↓ U2VjcmV0TWVzc2FnZTEyMw==</div>
</div>
</div>
</div>
</div>
<!-- HOW IT WORKS -->
<div class="panel">
<div class="panel-header">🧠 HOW BASE64 ENCODING WORKS <span class="panel-tag">EXPLAINER</span></div>
<div class="panel-body">
<div class="how-steps">
<div class="how-step">
<div class="step-dot" style="background:var(--green);">1</div>
<p>Every character in your text becomes its <strong>ASCII number</strong> (e.g. 'H' → 72, 'i' → 105).</p>
</div>
<div class="how-step">
<div class="step-dot" style="background:var(--blue);">2</div>
<p>Those bytes are grouped into <strong>3-byte chunks</strong> (24 bits) then split into <strong>four 6-bit groups</strong>.</p>
</div>
<div class="how-step">
<div class="step-dot" style="background:var(--orange);">3</div>
<p>Each 6-bit value maps to one of <strong>64 characters</strong>: A-Z, a-z, 0-9, +, /. That's where the name comes from!</p>
</div>
<div class="how-step">
<div class="step-dot" style="background:var(--purple);">4</div>
<p><code>=</code> padding is added to make the output length a multiple of 4. This encoder adds it automatically.</p>
</div>
<div class="how-step">
<div class="step-dot" style="background:var(--red);">5</div>
<p>The result is <strong>safe ASCII text</strong> — great for embedding data in JSON, HTML, URLs, or email headers. ~33% size increase is the trade-off.</p>
</div>
</div>
</div>
</div>
<!-- BASE64 STEP-BY-STEP COLLAPSIBLE -->
<details class="panel b64-example">
<summary class="panel-header">🔬 BASE64 WORKING EXAMPLE — "echobash" <span class="panel-tag">STEP BY STEP</span><span class="b64-chevron">▼</span></summary>
<div class="panel-body">
<p style="font-size:.9rem;line-height:1.55;margin-bottom:4px">Watch <code style="font-family:'Space Mono',monospace;font-size:.78rem;background:var(--ink);color:var(--yellow);padding:2px 7px;border-radius:3px">echobash</code> become <code style="font-family:'Space Mono',monospace;font-size:.78rem;background:var(--ink);color:var(--yellow);padding:2px 7px;border-radius:3px">ZWNob2Jhc2g=</code> — every bit shown.</p>
<!-- STEP 1 -->
<div class="b64-step-title">1️⃣ STEP 1 — Characters → ASCII → 8-bit Binary</div>
<table class="b64-ascii-table">
<thead><tr><th>Char</th><th>ASCII</th><th>8-bit Binary</th></tr></thead>
<tbody>
<tr><td><strong>e</strong></td><td>101</td><td>01100101</td></tr>
<tr><td><strong>c</strong></td><td>99</td><td>01100011</td></tr>
<tr><td><strong>h</strong></td><td>104</td><td>01101000</td></tr>
<tr><td><strong>o</strong></td><td>111</td><td>01101111</td></tr>
<tr><td><strong>b</strong></td><td>98</td><td>01100010</td></tr>
<tr><td><strong>a</strong></td><td>97</td><td>01100001</td></tr>
<tr><td><strong>s</strong></td><td>115</td><td>01110011</td></tr>
<tr><td><strong>h</strong></td><td>104</td><td>01101000</td></tr>
</tbody>
</table>
<!-- STEP 2 -->
<div class="b64-step-title">2️⃣ STEP 2 — Group 3 bytes (24 bits) → 4 × 6-bit groups → 4 B64 chars</div>
<div style="display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;align-items:center">
<span style="font-family:'Comic Neue',cursive;font-size:.82rem;font-weight:700">Color key:</span>
<span style="background:#e63946;color:#fff;font-family:'Space Mono',monospace;font-size:.7rem;font-weight:700;padding:2px 8px;border:2px solid var(--ink);border-radius:3px">6-bit A</span>
<span style="background:#1d6fb8;color:#fff;font-family:'Space Mono',monospace;font-size:.7rem;font-weight:700;padding:2px 8px;border:2px solid var(--ink);border-radius:3px">6-bit B</span>
<span style="background:#3fa34d;color:#fff;font-family:'Space Mono',monospace;font-size:.7rem;font-weight:700;padding:2px 8px;border:2px solid var(--ink);border-radius:3px">6-bit C</span>
<span style="background:#8a4fff;color:#fff;font-family:'Space Mono',monospace;font-size:.7rem;font-weight:700;padding:2px 8px;border:2px solid var(--ink);border-radius:3px">6-bit D</span>
<span style="font-family:'Comic Neue',cursive;font-size:.78rem;opacity:.65">← each maps to one B64 char</span>
</div>
<!-- CHUNK 1 -->
<div class="b64-chunk">
<div class="b64-chunk-hdr">CHUNK 1 of 3 — "ech" → 24 bits</div>
<div class="b64-chunk-body">
<div class="b64-char-row">
<span class="b64-char-name">e</span>
<span class="b64-ascii-badge">101</span>
<span class="b64-bg" style="background:#e63946">011001</span><span class="b64-bg" style="background:#1d6fb8">01</span>
</div>
<div class="b64-char-row">
<span class="b64-char-name">c</span>
<span class="b64-ascii-badge">99</span>
<span class="b64-bg" style="background:#1d6fb8">0110</span><span class="b64-bg" style="background:#3fa34d">0011</span>
</div>
<div class="b64-char-row">
<span class="b64-char-name">h</span>
<span class="b64-ascii-badge">104</span>
<span class="b64-bg" style="background:#3fa34d">01</span><span class="b64-bg" style="background:#8a4fff">101000</span>
</div>
<div class="b64-divider">↓ reassemble into four 6-bit groups, look up Base64 alphabet ↓</div>
<div class="b64-sixbit-row">
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#e63946">011001</div>
<div class="b64-sixval">= 25</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">Z</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#1d6fb8">010110</div>
<div class="b64-sixval">= 22</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">W</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#3fa34d">001101</div>
<div class="b64-sixval">= 13</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">N</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#8a4fff">101000</div>
<div class="b64-sixval">= 40</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">o</div>
</div>
</div>
<div class="b64-chunk-result">
<span class="b64-chunk-result-label">"ech" →</span>
<span class="b64-chunk-result-chars">ZWNo</span>
</div>
</div>
</div>
<!-- CHUNK 2 -->
<div class="b64-chunk">
<div class="b64-chunk-hdr">CHUNK 2 of 3 — "oba" → 24 bits</div>
<div class="b64-chunk-body">
<div class="b64-char-row">
<span class="b64-char-name">o</span>
<span class="b64-ascii-badge">111</span>
<span class="b64-bg" style="background:#e63946">011011</span><span class="b64-bg" style="background:#1d6fb8">11</span>
</div>
<div class="b64-char-row">
<span class="b64-char-name">b</span>
<span class="b64-ascii-badge">98</span>
<span class="b64-bg" style="background:#1d6fb8">0110</span><span class="b64-bg" style="background:#3fa34d">0010</span>
</div>
<div class="b64-char-row">
<span class="b64-char-name">a</span>
<span class="b64-ascii-badge">97</span>
<span class="b64-bg" style="background:#3fa34d">01</span><span class="b64-bg" style="background:#8a4fff">100001</span>
</div>
<div class="b64-divider">↓ reassemble into four 6-bit groups, look up Base64 alphabet ↓</div>
<div class="b64-sixbit-row">
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#e63946">011011</div>
<div class="b64-sixval">= 27</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">b</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#1d6fb8">110110</div>
<div class="b64-sixval">= 54</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">2</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#3fa34d">001001</div>
<div class="b64-sixval">= 9</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">J</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#8a4fff">100001</div>
<div class="b64-sixval">= 33</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">h</div>
</div>
</div>
<div class="b64-chunk-result">
<span class="b64-chunk-result-label">"oba" →</span>
<span class="b64-chunk-result-chars">b2Jh</span>
</div>
</div>
</div>
<!-- CHUNK 3 (2 bytes + padding) -->
<div class="b64-chunk">
<div class="b64-chunk-hdr">CHUNK 3 of 3 — "sh" (only 2 bytes — padding needed!)</div>
<div class="b64-chunk-body">
<div class="b64-char-row">
<span class="b64-char-name">s</span>
<span class="b64-ascii-badge">115</span>
<span class="b64-bg" style="background:#e63946">011100</span><span class="b64-bg" style="background:#1d6fb8">11</span>
</div>
<div class="b64-char-row">
<span class="b64-char-name">h</span>
<span class="b64-ascii-badge">104</span>
<span class="b64-bg" style="background:#1d6fb8">0110</span><span class="b64-bg" style="background:#3fa34d">1000</span>
</div>
<div class="b64-char-row">
<span class="b64-char-name" style="opacity:.3">—</span>
<span style="font-family:'Space Mono',monospace;font-size:.68rem;color:var(--red);font-weight:700;border:2px dashed var(--red);padding:1px 6px;border-radius:3px">MISSING</span>
<span class="b64-bg" style="background:#3fa34d;opacity:.45">00</span>
<span style="font-family:'Space Mono',monospace;font-size:.72rem;color:var(--red);font-weight:700">← 2 padding zero bits to fill 6-bit group C</span>
</div>
<div class="b64-divider">↓ 16 real bits + 2 pad zeros = 18 bits → 3 B64 chars + "=" padding ↓</div>
<div class="b64-sixbit-row">
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#e63946">011100</div>
<div class="b64-sixval">= 28</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">c</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#1d6fb8">110110</div>
<div class="b64-sixval">= 54</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">2</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#3fa34d">1000<span style="opacity:.45">00</span></div>
<div class="b64-sixval">= 32 (+2 zeros)</div>
<div class="b64-sixeq">↓</div>
<div class="b64-sixchar">g</div>
</div>
<div class="b64-sixbit">
<div class="b64-sixbits" style="background:#888;letter-spacing:2px">······</div>
<div class="b64-sixval">padding</div>
<div class="b64-sixeq">↓</div>
<div class="b64-pad-char">=</div>
</div>
</div>
<div class="b64-chunk-result">
<span class="b64-chunk-result-label">"sh" →</span>
<span class="b64-chunk-result-chars">c2g=</span>
</div>
</div>
</div>
<!-- FINAL RESULT -->
<div class="b64-final">
<div class="b64-final-label">🏆 FINAL RESULT</div>
<div class="b64-final-input">"echobash" →</div>
<div class="b64-final-output">ZWNob2Jhc2g=</div>
<div style="font-family:'Comic Neue',cursive;font-size:.8rem;color:rgba(255,255,255,.5);margin-top:10px">8 bytes · 3 chunks (2 full + 1 padded) · 12 output chars · +33% size overhead</div>
</div>
</div>
</details>
</div><!-- /page-wrap -->
<script src="masthead.js"></script>
<script src="hero-banner.js"></script>
<script src="author-card.js"></script>
<script>
(function() {
var inputEl = document.getElementById('base64-input');
var outputEl = document.getElementById('base64-output');
var encodeBtn = document.getElementById('encode-btn');
var clearBtn = document.getElementById('clear-btn');
var copyBtn = document.getElementById('copy-btn');
var outPanel = document.getElementById('output-panel');
var errBubble = document.getElementById('error-bubble');
var errMsg = document.getElementById('error-msg');
var statOrig = document.getElementById('stat-orig-size');
var statB64 = document.getElementById('stat-b64-size');
var statOver = document.getElementById('stat-overhead');
var statPad = document.getElementById('stat-padding');
function safeEncode(raw) {
try { return btoa(unescape(encodeURIComponent(raw))); } catch(e) { return ''; }
}
function showError(msg) { errMsg.textContent = msg; errBubble.classList.add('show'); }
function hideError() { errBubble.classList.remove('show'); }
function formatBytes(n) {
if (n === 0) return '0 B';
if (n < 1024) return n + ' B';
return (n / 1024).toFixed(1) + ' KB';
}
function encode() {
var raw = inputEl.value;
if (!raw) { showError('Please enter some text to encode!'); return; }
try {
var encoded = safeEncode(raw);
if (!encoded) throw new Error('Encoding failed');
outputEl.value = encoded;
outPanel.style.display = 'block';
hideError();
var rawBytes = new Blob([raw]).size;
var encBytes = new Blob([encoded]).size;
statOrig.textContent = formatBytes(rawBytes);
statB64.textContent = formatBytes(encBytes);
statOver.textContent = rawBytes > 0 ? (((encBytes - rawBytes) / rawBytes) * 100).toFixed(1) + '%' : '0%';
var padMatch = encoded.match(/=+$/);
statPad.textContent = (padMatch ? padMatch[0].length : 0) + ' chars';
} catch(e) { showError('Encode failed: ' + e.message); }
}
encodeBtn.addEventListener('click', encode);
clearBtn.addEventListener('click', function() {
inputEl.value = ''; outputEl.value = '';
outPanel.style.display = 'none'; hideError();
});
copyBtn.addEventListener('click', function() {
outputEl.select();
try { document.execCommand('copy'); } catch(e) {}
if (navigator.clipboard) navigator.clipboard.writeText(outputEl.value).catch(function(){});
copyBtn.textContent = '✔ COPIED!';
copyBtn.style.background = 'var(--green)';
setTimeout(function() { copyBtn.textContent = '📋 COPY'; copyBtn.style.background = 'var(--ink)'; }, 1800);
});
var cards = document.querySelectorAll('.example-card');
for (var i = 0; i < cards.length; i++) {
cards[i].addEventListener('click', function() { inputEl.value = this.dataset.plain; encode(); });
}
inputEl.addEventListener('keydown', function(e) {
if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') encode();
});
inputEl.value = 'Hello from DevDunia!';
})();
</script>
</body>
</html>