{"id":65918,"date":"2026-10-14T12:30:51","date_gmt":"2026-10-14T07:00:51","guid":{"rendered":"https:\/\/www.quickonlinetips.com\/archives\/?page_id=65918"},"modified":"2026-10-14T14:30:15","modified_gmt":"2026-10-14T09:00:15","slug":"barcode-generator","status":"publish","type":"page","link":"https:\/\/www.quickonlinetips.com\/archives\/tools\/barcode-generator\/","title":{"rendered":"Barcode Generator: Code 128, EAN-13, UPC and More"},"content":{"rendered":"<p>This free <strong>barcode generator<\/strong> makes printable barcodes in the most common formats: Code 128 for labels and shipping, EAN-13 and UPC-A for retail products, Code 39, ITF-14 for cartons and Codabar for libraries. 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.qt-lb{display:inline-flex;width:44px;height:44px;border-radius:50%;align-items:center;justify-content:center;font-weight:700;font-size:17px;background:#fff;color:#1A202C;border:2px solid var(--qt-accent);margin:3px} .qt-tool .qt-lb.qt-bonus{background:#E53E3E;color:#fff;border-color:#E53E3E} .qt-tool .qt-8{width:230px;height:230px;border-radius:50%;margin:16px auto;background:radial-gradient(circle at 35% 30%,#666,#000 62%);display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 10px 24px rgba(0,0,0,.35)} .qt-tool .qt-8 span{width:116px;height:116px;border-radius:50%;background:radial-gradient(circle,#2747a8,#0b1a4a);color:#fff;display:flex;align-items:center;justify-content:center;text-align:center;font-size:13px;font-weight:700;padding:16px;box-sizing:border-box;line-height:1.25;transition:opacity .3s} .qt-tool .qt-shake{animation:qt-shake .7s} @keyframes qt-shake{0%,100%{transform:translate(0)}20%{transform:translate(-12px,4px) rotate(-6deg)}40%{transform:translate(10px,-6px) rotate(5deg)}60%{transform:translate(-8px,6px) rotate(-4deg)}80%{transform:translate(6px,-3px) rotate(3deg)}} .qt-tool .qt-grid>.qt-field{display:flex;flex-direction:column;justify-content:flex-end} .qt-tool .qt-field input[type=range]{height:46px;padding:0 10px} .qt-tool .qt-field input[type=color]{height:46px} .qt-tool .qt-drop .qt-sub{font-weight:400;font-size:14px;margin:4px 0 0} .qt-tool .qt-board{display:grid;gap:5px;margin:14px auto 0;max-width:100%;user-select:none;-webkit-user-select:none;touch-action:manipulation} .qt-tool .qt-cell{display:flex;align-items:center;justify-content:center;background:#fff;border:1px solid #AEC3DB;border-radius:6px;font-weight:700;cursor:pointer;aspect-ratio:1;font-size:clamp(14px,4vw,26px);color:#1A202C;padding:0;min-width:0;font-family:inherit;line-height:1} .qt-tool .qt-cell:disabled{cursor:default} .qt-tool .qt-win{background:#C6F6D5;border-color:#38A169} .qt-tool .qt-sel{background:#BEE3F8;border-color:#3182CE} .qt-tool .qt-bad{background:#FED7D7;border-color:#E53E3E} .qt-tool select{-webkit-appearance:none;-moz-appearance:none;appearance:none;padding-right:40px;cursor:pointer;border:2px solid #90B4DA;font-weight:600;background-color:#fff;background-image:url(\"data:image\/svg+xml,%3Csvg xmlns='http:\/\/www.w3.org\/2000\/svg' viewBox='0 0 14 9'%3E%3Cpath d='M1.5 1.5l5.5 5.5 5.5-5.5' fill='none' stroke='%232B6CB0' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'\/%3E%3C\/svg%3E\");background-repeat:no-repeat;background-position:right 14px center;background-size:14px 9px} .qt-tool select:hover{border-color:var(--qt-accent);background-color:#F4F8FD} .qt-tool select::-ms-expand{display:none} .qt-next{margin:0 0 1.75em} .qt-next .qt-next-h{font-size:14px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:#4A5568;margin:0 0 8px} .qt-next-g{display:grid;grid-template-columns:repeat(3,1fr);gap:8px} .qt-next-g a{display:flex;align-items:center;min-height:46px;padding:9px 12px;border:1px solid #AEC3DB;border-radius:8px;background:#F4F8FD;color:#215387;font-weight:600;font-size:15px;line-height:1.3;text-decoration:none} .qt-next-g a:hover,.qt-next-g a:focus{background:#E3EEFF;border-color:#2B6CB0;text-decoration:none} @media (max-width:600px){.qt-next-g{grid-template-columns:repeat(2,1fr)}}<\/style>\n<div class=\"qt-tool\" id=\"qt-bc\">\n<div class=\"qt-grid\">\n<div class=\"qt-field\"><label for=\"qt-bc-fmt\">Barcode type<\/label><select id=\"qt-bc-fmt\"><option value=\"CODE128\" selected>Code 128 (any text)<\/option><option value=\"EAN13\">EAN-13 (12 or 13 digits)<\/option><option value=\"UPC\">UPC-A (11 or 12 digits)<\/option><option value=\"EAN8\">EAN-8 (7 or 8 digits)<\/option><option value=\"CODE39\">Code 39 (A-Z, 0-9)<\/option><option value=\"ITF14\">ITF-14 (13 or 14 digits)<\/option><option value=\"codabar\">Codabar<\/option><\/select><\/div>\n<div class=\"qt-field\"><label for=\"qt-bc-val\">Value<\/label><input type=\"text\" id=\"qt-bc-val\" value=\"QOT-2026-0042\" spellcheck=\"false\"><\/div>\n<div class=\"qt-field\"><label for=\"qt-bc-w\">Bar width<\/label><select id=\"qt-bc-w\"><option value=\"1\">Thin<\/option><option value=\"2\" selected>Normal<\/option><option value=\"3\">Wide<\/option><option value=\"4\">Extra wide<\/option><\/select><\/div>\n<div class=\"qt-field\"><label for=\"qt-bc-h\">Height (px)<\/label><input type=\"number\" id=\"qt-bc-h\" value=\"100\" min=\"20\" max=\"400\"><\/div>\n<div class=\"qt-field\"><label for=\"qt-bc-fg\">Bar color<\/label><input type=\"color\" id=\"qt-bc-fg\" value=\"#000000\"><\/div>\n<\/div>\n<div class=\"qt-row\"><label class=\"qt-check\"><input type=\"checkbox\" id=\"qt-bc-txt\" checked> Show the number under the bars<\/label><\/div>\n<div style=\"background:#fff;border:1px solid #CBD5E0;border-radius:8px;padding:12px;text-align:center;overflow-x:auto;margin-top:12px\"><svg id=\"qt-bc-svg\" aria-label=\"Barcode preview\"><\/svg><\/div>\n<div class=\"qt-row\"><button type=\"button\" class=\"qt-btn\" id=\"qt-bc-png\">Download PNG<\/button><button type=\"button\" class=\"qt-btn qt-btn-ghost\" id=\"qt-bc-dsvg\">Download SVG<\/button><\/div>\n<div class=\"qt-status\" id=\"qt-bc-status\" aria-live=\"polite\">Loading the barcode maker&#8230;<\/div>\n<p class=\"qt-note\">Everything runs in your browser. Nothing you enter is sent to or stored on our server.<\/p>\n<\/div>\n<p><script>(function () { function qtReady(fn) { if (document.readyState === 'loading') { document.addEventListener('DOMContentLoaded', fn); } else { fn(); } } function qtCopy(text, statusEl, okMsg) { function done(ok) { if (statusEl) { statusEl.textContent = ok ? (okMsg || 'Copied to clipboard.') : 'Press Ctrl+C (or Cmd+C) to copy.'; } } function fallback() { var ta = document.createElement('textarea'); ta.value = text; ta.setAttribute('readonly', ''); ta.style.position = 'fixed'; ta.style.top = '-1000px'; document.body.appendChild(ta); ta.select(); var ok = false; try { ok = document.execCommand('copy'); } catch (e) { ok = false; } document.body.removeChild(ta); done(ok); } if (navigator.clipboard) { if (window.isSecureContext) { navigator.clipboard.writeText(text).then(function () { done(true); }, fallback); return; } } fallback(); } function qtRand32() { var c = window.crypto || window.msCrypto; if (c) { if (c.getRandomValues) { var a = new Uint32Array(1); c.getRandomValues(a); return a[0]; } } return Math.floor(Math.random() * 4294967296); } function qtRandInt(range) { if (range === 4294967296) { return qtRand32(); } var limit = Math.floor(4294967296 \/ range) * range; var x = qtRand32(); while (x >= limit) { x = qtRand32(); } return x % range; } function qtLoad(urls, test, cb) { if (test()) { cb(true); return; } var i = 0; function next() { if (i >= urls.length) { cb(false); return; } var s = document.createElement('script'); s.src = urls[i++]; s.async = true; s.onload = function () { if (test()) { cb(true); } else { next(); } }; s.onerror = next; document.head.appendChild(s); } next(); } function qtSave(blob, name) { var a = document.createElement('a'); a.href = URL.createObjectURL(blob); a.download = name; document.body.appendChild(a); a.click(); setTimeout(function () { URL.revokeObjectURL(a.href); a.remove(); }, 1500); } qtReady(function () { var svg = document.getElementById('qt-bc-svg'); if (!svg) { return; } function $(id) { return document.getElementById(id); } var ok = false, valid = false; var EX = { CODE128: 'QOT-2026-0042', EAN13: '590123412345', UPC: '03600029145', EAN8: '9638507', CODE39: 'ABC-123', ITF14: '1540014128876', codabar: 'A12345B' }; function opts() { return { format: $('qt-bc-fmt').value, width: +$('qt-bc-w').value, height: Math.min(400, Math.max(20, +$('qt-bc-h').value || 100)), displayValue: $('qt-bc-txt').checked, lineColor: $('qt-bc-fg').value, background: '#ffffff', margin: 10, valid: function (v) { valid = v; } }; } function upd() { if (!ok) { return; } var st = $('qt-bc-status'), val = $('qt-bc-val').value.trim(); st.classList.remove('qt-error'); if ($('qt-bc-fmt').value === 'CODE39') { val = val.toUpperCase(); } valid = false; try { window.JsBarcode(svg, val, opts()); } catch (e) { valid = false; } if (!valid || !val) { st.textContent = 'That value does not fit ' + $('qt-bc-fmt').options[$('qt-bc-fmt').selectedIndex].text + '. Check the number of digits and the characters allowed.'; st.classList.add('qt-error'); svg.style.display = 'none'; return; } svg.style.display = ''; var shown = svg.querySelector('text') ? Array.prototype.map.call(svg.querySelectorAll('text'), function (t) { return t.textContent; }).join('') : val; st.textContent = 'Barcode ready' + (shown.replace(\/\\s\/g, '') !== val.replace(\/\\s\/g, '') ? ', with check digit: ' + shown.replace(\/\\s\/g, '') : '') + '. Test it with a phone scanner app before printing.'; } $('qt-bc-fmt').addEventListener('change', function () { $('qt-bc-val').value = EX[$('qt-bc-fmt').value]; upd(); }); ['qt-bc-val', 'qt-bc-h', 'qt-bc-fg'].forEach(function (id) { $(id).addEventListener('input', upd); }); ['qt-bc-w', 'qt-bc-txt'].forEach(function (id) { $(id).addEventListener('change', upd); }); $('qt-bc-dsvg').addEventListener('click', function () { if (!valid) { return; } var s = new XMLSerializer().serializeToString(svg); qtSave(new Blob([s], { type: 'image\/svg+xml' }), 'barcode-' + $('qt-bc-val').value.replace(\/[^\\w-]\/g, '') + '.svg'); }); $('qt-bc-png').addEventListener('click', function () { if (!valid) { return; } var c = document.createElement('canvas'), o = opts(); o.width = o.width * 2; o.height = o.height * 2; o.fontSize = 40; o.margin = 20; var val = $('qt-bc-val').value.trim(); if (o.format === 'CODE39') { val = val.toUpperCase(); } window.JsBarcode(c, val, o); c.toBlob(function (b) { qtSave(b, 'barcode-' + val.replace(\/[^\\w-]\/g, '') + '.png'); }); }); qtLoad(['https:\/\/unpkg.com\/jsbarcode@3.11.6\/dist\/JsBarcode.all.min.js', 'https:\/\/cdn.jsdelivr.net\/npm\/jsbarcode@3.11.6\/dist\/JsBarcode.all.min.js'], function () { return typeof window.JsBarcode === 'function'; }, function (good) { if (!good) { $('qt-bc-status').textContent = 'The barcode maker could not load. Check your connection or ad blocker and reload.'; $('qt-bc-status').classList.add('qt-error'); return; } ok = true; upd(); }); }); })();<\/script><\/p>\n<div class=\"qt-next\">\n<p class=\"qt-next-h\">Try another free tool<\/p>\n<div class=\"qt-next-g\"><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/dns-lookup\/\">DNS Lookup<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/what-is-my-ip\/\">What Is My IP<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/web-safe-colors\/\">Web Safe Colors<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/web-safe-fonts-list\/\">Web Safe Fonts List<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/hex-to-rgb\/\">Hex to RGB Converter<\/a><a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/qr-code-generator\/\">QR Code Generator<\/a><\/div>\n<\/div>\n<p><strong>Quick answer:<\/strong> Pick a barcode type, type the number or text, and the barcode appears. Use Code 128 for your own labels and stock codes; use EAN-13 or UPC-A only with product numbers assigned to your company by GS1.<\/p>\n<h2>How to use the barcode generator<\/h2>\n<ol>\n<li>Choose the <strong>barcode type<\/strong>. An example value is filled in for each one.<\/li>\n<li>Enter your value. For EAN-13 and UPC-A you can leave off the last digit and the check digit is added for you.<\/li>\n<li>Adjust bar width, height and color, and choose whether to show the number under the bars.<\/li>\n<li>Download a PNG for documents and labels, or an SVG for professional printing.<\/li>\n<\/ol>\n<h2>Which barcode type do I need?<\/h2>\n<table class=\"qt-ref\">\n<thead>\n<tr>\n<th>Type<\/th>\n<th>Data<\/th>\n<th>Used for<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Code 128<\/td>\n<td>Any letters, numbers and symbols<\/td>\n<td>Shipping labels, inventory, asset tags, tickets<\/td>\n<\/tr>\n<tr>\n<td>EAN-13<\/td>\n<td>13 digits<\/td>\n<td>Retail products worldwide, books (ISBN starting 978 or 979)<\/td>\n<\/tr>\n<tr>\n<td>UPC-A<\/td>\n<td>12 digits<\/td>\n<td>Retail products in the US and Canada<\/td>\n<\/tr>\n<tr>\n<td>EAN-8<\/td>\n<td>8 digits<\/td>\n<td>Small packages with little space<\/td>\n<\/tr>\n<tr>\n<td>Code 39<\/td>\n<td>A to Z, 0 to 9 and a few symbols<\/td>\n<td>Industry, ID badges, older systems<\/td>\n<\/tr>\n<tr>\n<td>ITF-14<\/td>\n<td>14 digits<\/td>\n<td>Outer cartons and cases of products<\/td>\n<\/tr>\n<tr>\n<td>Codabar<\/td>\n<td>Digits with start and stop letters A to D<\/td>\n<td>Libraries, blood banks, courier forms<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Selling in shops? Get official numbers<\/h2>\n<p>Anyone can draw an EAN-13 or UPC barcode, but the number inside must be unique worldwide. Retailers and marketplaces such as Amazon expect product numbers (GTINs) licensed from <strong>GS1<\/strong>, the organisation that runs the system in each country. Once you have your GS1 numbers, you can create the barcode images here for free.<\/p>\n<h2>Printing tips<\/h2>\n<ul>\n<li>Print black bars on a white background. Red bars and dark backgrounds often cannot be read by scanners.<\/li>\n<li>Keep the clear space on both sides of the bars.<\/li>\n<li>Do not stretch the image unevenly; resize the SVG to keep bars sharp.<\/li>\n<li>Test a printed sample with a scanner or phone app before printing in bulk.<\/li>\n<\/ul>\n<p>For links, Wi-Fi and contact details, a 2D code holds much more: try the <a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/qr-code-generator\/\">QR code generator<\/a>. Need random test numbers? Use the <a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/random-number-generator\/\">random number generator<\/a>.<\/p>\n<h2>FAQ<\/h2>\n<h3>What is a check digit?<\/h3>\n<p>The last digit of EAN and UPC codes, calculated from the others so scanners can spot misreads. The generator works it out automatically.<\/p>\n<h3>Are the barcodes free to use?<\/h3>\n<p>Yes. The images are yours to use on labels, products and documents.<\/p>\n<h2>More free tools<\/h2>\n<div class=\"qt-cards\"><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/dns-lookup\/\"><strong>DNS Lookup<\/strong><span>Check A, MX, TXT, SPF and DMARC records for any domain.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/what-is-my-ip\/\"><strong>What Is My IP<\/strong><span>See your public IP address, IPv4 or IPv6, and location.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/web-safe-colors\/\"><strong>Web Safe Colors<\/strong><span>All 216 web safe hex codes, click to copy.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/web-safe-fonts-list\/\"><strong>Web Safe Fonts List<\/strong><span>Fonts that display the same on almost every device.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/hex-to-rgb\/\"><strong>Hex to RGB Converter<\/strong><span>Convert colors between HEX, RGB and HSL with a picker.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/qr-code-generator\/\"><strong>QR Code Generator<\/strong><span>QR codes for links, text, Wi-Fi and contacts.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/color-palette-generator\/\"><strong>Color Palette Generator<\/strong><span>Random and matching color palettes with hex codes.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/uuid-generator\/\"><strong>UUID Generator<\/strong><span>Generate random v4 UUIDs and GUIDs in bulk.<\/span><\/a><a class=\"qt-card\" href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/base64-encode-decode\/\"><strong>Base64 Encode and Decode<\/strong><span>Encode text to Base64 and decode it back, UTF-8 safe.<\/span><\/a><\/div>\n<p>See all of them on the <a href=\"https:\/\/www.quickonlinetips.com\/archives\/tools\/\">QuickOnlineTips free online tools<\/a> page and play our <a href=\"https:\/\/www.quickonlinetips.com\/archives\/games\/\">free online games<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This free barcode generator makes printable barcodes in the most common formats: Code 128 for labels and shipping, EAN-13 and UPC-A for retail products, Code 39, ITF-14 for cartons and Codabar for libraries. Check digits are worked out for you, and you can download each barcode as a PNG or a sharp SVG. Barcode typeCode&#8230;<\/p>\n","protected":false},"author":4,"featured_media":0,"parent":65595,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-65918","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65918","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/comments?post=65918"}],"version-history":[{"count":3,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65918\/revisions"}],"predecessor-version":[{"id":66425,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65918\/revisions\/66425"}],"up":[{"embeddable":true,"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/pages\/65595"}],"wp:attachment":[{"href":"https:\/\/www.quickonlinetips.com\/archives\/wp-json\/wp\/v2\/media?parent=65918"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}