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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>Free Hash Generator — MD5, SHA-1, SHA-256, SHA-512</title>
<meta name="description" content="Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text instantly. Compare hashes for file integrity. Free online hash generator.">
<link rel="canonical" href="https://www.quicktools.mom/hash-generator.html">
<meta property="og:title" content="">
<meta property="og:description" content="">
<meta property="og:type" content="website">
<meta property="og:url" content="https://www.quicktools.mom/hash-generator.html">
<meta name="twitter:card" content="summary">
<link rel="stylesheet" href="style.css">
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-2658921743607446" crossorigin="anonymous"></script>
<script type="application/ld+json">{"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"📁 File Hash","acceptedAnswer":{"@type":"Answer","text":"Drop a file to calculate its SHA-256 checksum for integrity verification."}},{"@type":"Question","name":"✅ Hash Comparator
Hash 1
Hash 2
Ad Space — 336×280
<div class="tool-card" style="max-width:720px;">
<h2 style="font-size:1rem;margin-bottom:0.75rem;">📖 About Hash Generator</h2>
<p style="font-size:0.85rem;line-height:1.7;color:var(--text-muted);margin-bottom:0.75rem;">Hash Generator is a free, browser-based tool built for developers, content creators, and marketers. Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text instantly. Compare hashes for file integrity. Free online hash generator. This tool processes everything locally using JavaScript — no data is uploaded to any server, no account is required, and there are no usage limits. Whether you’re working on a quick project or handling sensitive data, your privacy is fully protected. Perfect for quick tasks and professional workflows alike, this tool saves you time by eliminating the need for complex software or manual work. Bookmark this page and use it anytime — it works on desktop, tablet, and mobile devices.</p>
<h3 style="font-size:0.9rem;margin-bottom:0.5rem;">How to Use</h3>
<ol style="font-size:0.85rem;color:var(--text-muted);line-height:1.7;padding-left:1.2rem;">
<li><strong>Enter your data</strong> — Type, paste, or upload your input in the fields above.</li>
<li><strong>Configure options</strong> — Adjust any settings or parameters to match your requirements.</li>
<li><strong>Get instant results</strong> — Output updates automatically in real-time as you type.</li>
<li><strong>Copy or download</strong> — Use the Copy button to grab results, or download if available.</li>
</ol>
</div>
Frequently Asked Questions
What is a hash?","acceptedAnswer":{"@type":"Answer","text":"A hash is a fixed-length string generated from input data using a mathematical algorithm. The same input always produces the same hash. Even a tiny change in input produces a completely different hash. Hashes are used for data integrity, password storage, and digital signatures."}},{"@type":"Question","name":"Which hash algorithm should I use?","acceptedAnswer":{"@type":"Answer","text":"For security purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are no longer considered secure for cryptographic purposes but are still useful for checksums and non-security applications."}},{"@type":"Question","name":"Can a hash be reversed?","acceptedAnswer":{"@type":"Answer","text":"No. Hash functions are one-way — you cannot reverse a hash to get the original input. This is what makes them useful for password storage."}}]}</script>
</head>
<body>
<div class="page-wrapper">
<header class="site-header"><a href="index.html" class="site-logo"><span class="icon">⚡</span> QuickTools</a><nav class="site-nav"><a href="index.html">All Tools</a></nav></header>
<div class="ad-zone ad-zone-top">Ad Space — 728×90</div>
<div class="tool-header">
<div class="tool-badge">🔒 Security</div>
<h1>Hash Generator</h1>
<p>Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text instantly.</p>
</div>
<div class="tool-card">
<label>Enter Text</label>
<textarea id="input" class="mono" rows="5" placeholder="Type or paste text to hash..." oninput="computeAll()"></textarea>
<div id="results" class="mt-3"></div>
</div>
<div class="tool-card">
<h3 style="font-size: 0.95rem; margin-bottom: 1rem;">📁 File Hash</h3>
<p class="text-muted mb-2" style="font-size: 0.85rem;">Drop a file to calculate its SHA-256 checksum for integrity verification.</p>
<div id="dropZone" style="border: 2px dashed var(--border); border-radius: var(--radius); padding: 2rem; text-align: center; cursor: pointer; transition: var(--transition);"
onclick="document.getElementById('fileInput').click()"
ondragover="event.preventDefault(); this.style.borderColor='var(--accent)'"
ondragleave="this.style.borderColor='var(--border)'"
ondrop="handleDrop(event)">
<input type="file" id="fileInput" style="display: none" onchange="hashFile(this.files[0])">
<span style="font-size: 2rem;">📄</span>
<p class="mt-1 text-muted" style="font-size: 0.85rem;">Drop a file here or click to browse</p>
</div>
<div class="output-area mt-2 hidden" id="fileResult">
<span class="output-label">SHA-256</span>
<pre id="fileHash" style="word-break: break-all;"></pre>
<button class="copy-btn" onclick="copyEl('fileHash')">Copy</button>
</div>
</div>
<div class="tool-card">
<h3 style="font-size: 0.95rem; margin-bottom: 1rem;">✅ Hash Comparator</h3>
<div class="controls-row">
<div class="control-group"><label>Hash 1</label><input type="text" id="cmp1" class="mono" placeholder="Paste first hash..." oninput="compareHashes()"></div>
<div class="control-group"><label>Hash 2</label><input type="text" id="cmp2" class="mono" placeholder="Paste second hash..." oninput="compareHashes()"></div>
</div>
<div id="compareResult" class="mt-1" style="font-size: 0.9rem;"></div>
</div>
<div class="ad-zone">Ad Space — 336×280</div>
<div class="faq-section">
<h2>Frequently Asked Questions</h2>
<div class="faq-item"><h3>What is a hash?</h3><p>A hash is a fixed-length string generated from input data using a mathematical algorithm. The same input always produces the same hash. Even a tiny change in input produces a completely different hash. Hashes are used for data integrity, password storage, and digital signatures.</p></div>
<div class="faq-item"><h3>Which hash algorithm should I use?</h3><p>For security purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are no longer considered secure for cryptographic purposes but are still useful for checksums and non-security applications.</p></div>
<div class="faq-item"><h3>Can a hash be reversed?</h3><p>No. Hash functions are one-way — you cannot reverse a hash to get the original input. This is what makes them useful for password storage.</p></div>
</div>
<div class="related-tools"><h2>Related Tools</h2><div class="related-grid">
<a href="password-generator.html"><span class="tool-icon">🔐</span> Password Generator</a>
<a href="base64.html"><span class="tool-icon">🔄</span> Base64 Encoder</a>
<a href="uuid-generator.html"><span class="tool-icon">🆔</span> UUID Generator</a>
<a href="json-formatter.html"><span class="tool-icon">{ }</span> JSON Formatter</a>
</div></div>
<div class="ad-zone ad-zone-bottom">Ad Space — 728×90</div>
<footer class="site-footer"><p>© 2026 QuickTools.</p><div class="footer-links"><a href="index.html">All Tools</a><a href="#">Privacy</a></div></footer>
</div>
<script>
async function hashText(algo, text) {
const encoder = new TextEncoder();
const data = encoder.encode(text);
const hashBuffer = await crypto.subtle.digest(algo, data);
return Array.from(new Uint8Array(hashBuffer)).map(b => b.toString(16).padStart(2, '0')).join('');
}
async function computeAll() {
const text = document.getElementById('input').value;
if (!text) { document.getElementById('results').innerHTML = ''; return; }
const algos = [
{ name: 'MD5', id: 'md5' },
{ name: 'SHA-1', id: 'SHA-1' },
{ name: 'SHA-256', id: 'SHA-256' },
{ name: 'SHA-512', id: 'SHA-512' }
];
let html = '';
for (const algo of algos) {
let hash;
if (algo.id === 'md5') {
hash = md5(text);
} else {
hash = await hashText(algo.id, text);
}
html += `<div class="output-area mb-2" style="margin-top: 0.75rem;">
<span class="output-label">${algo.name}</span>
<pre style="word-break: break-all; font-size: 0.85rem;" id="hash-${algo.id}">${hash}</pre>
<button class="copy-btn" onclick="copyEl('hash-${algo.id}')">Copy</button>
</div>`;
}
document.getElementById('results').innerHTML = html;
}
function copyEl(id) {
navigator.clipboard.writeText(document.getElementById(id).textContent).then(() => {
const btn = document.getElementById(id).parentElement.querySelector('.copy-btn');
btn.textContent = 'Copied!'; btn.classList.add('copied');
setTimeout(() => { btn.textContent = 'Copy'; btn.classList.remove('copied'); }, 2000);
});
}
function handleDrop(e) { e.preventDefault(); e.currentTarget.style.borderColor = 'var(--border)'; if (e.dataTransfer.files.length) hashFile(e.dataTransfer.files[0]); }
async function hashFile(file) {
if (!file) return;
const buffer = await file.arrayBuffer();
const hashBuffer = await crypto.subtle.digest('SHA-256', buffer);
const hash = Array.from(new Uint8Array(hashBuffer)).map(b => b.toString(16).padStart(2, '0')).join('');
document.getElementById('fileHash').textContent = hash;
document.getElementById('fileResult').classList.remove('hidden');
}
function compareHashes() {
const h1 = document.getElementById('cmp1').value.trim().toLowerCase();
const h2 = document.getElementById('cmp2').value.trim().toLowerCase();
const el = document.getElementById('compareResult');
if (!h1 || !h2) { el.innerHTML = ''; return; }
if (h1 === h2) { el.innerHTML = '<span class="text-success">✅ Hashes match!</span>'; }
else { el.innerHTML = '<span class="text-danger">❌ Hashes do NOT match</span>'; }
}
// Simple MD5 implementation (for non-crypto use)
function md5(s){function L(k,d){return(k<<d)|(k>>>(32-d))}function K(G,k){var I,d,F,H,x;F=(G&2147483648);H=(k&2147483648);I=(G&1073741824);d=(k&1073741824);x=(G&1073741823)+(k&1073741823);if(I&d)return(x^2147483648^F^H);if(I|d){if(x&1073741824)return(x^3221225472^F^H);else return(x^1073741824^F^H)}else return(x^F^H)}function r(d,F,k){return(d&F)|((~d)&k)}function q(d,F,k){return(d&k)|(F&(~k))}function p(d,F,k){return(d^F^k)}function n(d,F,k){return(F^(d|(~k)))}function u(G,F,aa,Z,k,H,I){G=K(G,K(K(r(F,aa,Z),k),I));return K(L(G,H),F)}function f(G,F,aa,Z,k,H,I){G=K(G,K(K(q(F,aa,Z),k),I));return K(L(G,H),F)}function D(G,F,aa,Z,k,H,I){G=K(G,K(K(p(F,aa,Z),k),I));return K(L(G,H),F)}function t(G,F,aa,Z,k,H,I){G=K(G,K(K(n(F,aa,Z),k),I));return K(L(G,H),F)}function e(G){var Z;var F=G.length;var x=F+8;var k=(x-(x%64))/64;var I=(k+1)*16;var aa=Array(I-1);var d=0;var H=0;while(H<F){Z=(H-(H%4))/4;d=(H%4)*8;aa[Z]=(aa[Z]|(G.charCodeAt(H)<<d));H++}Z=(H-(H%4))/4;d=(H%4)*8;aa[Z]=aa[Z]|(128<<d);aa[I-2]=F<<3;aa[I-1]=F>>>29;return aa}function B(x){var k="",F="",G,d;for(d=0;d<=3;d++){G=(x>>>(d*8))&255;F="0"+G.toString(16);k=k+F.substr(F.length-2,2)}return k}var C=Array();var P,h,E,v,g,Y,X,W,V;var S=7,Q=12,N=17,M=22;var A=5,z=9,y=14,w=20;var o=4,m=11,l=16,j=23;var U=6,T=10,R=15,O=21;s=unescape(encodeURIComponent(s));C=e(s);Y=1732584193;X=4023233417;W=2562383102;V=271733878;for(P=0;P<C.length;P+=16){h=Y;E=X;v=W;g=V;Y=u(Y,X,W,V,C[P+0],S,3614090360);V=u(V,Y,X,W,C[P+1],Q,3905402710);W=u(W,V,Y,X,C[P+2],N,606105819);X=u(X,W,V,Y,C[P+3],M,3250441966);Y=u(Y,X,W,V,C[P+4],S,4118548399);V=u(V,Y,X,W,C[P+5],Q,1200080426);W=u(W,V,Y,X,C[P+6],N,2821735955);X=u(X,W,V,Y,C[P+7],M,4249261313);Y=u(Y,X,W,V,C[P+8],S,1770035416);V=u(V,Y,X,W,C[P+9],Q,2336552879);W=u(W,V,Y,X,C[P+10],N,4294925233);X=u(X,W,V,Y,C[P+11],M,2304563134);Y=u(Y,X,W,V,C[P+12],S,1804603682);V=u(V,Y,X,W,C[P+13],Q,4254626195);W=u(W,V,Y,X,C[P+14],N,2792965006);X=u(X,W,V,Y,C[P+15],M,1236535329);Y=f(Y,X,W,V,C[P+1],A,4129170786);V=f(V,Y,X,W,C[P+6],z,3225465664);W=f(W,V,Y,X,C[P+11],y,643717713);X=f(X,W,V,Y,C[P+0],w,3921069994);Y=f(Y,X,W,V,C[P+5],A,3593408605);V=f(V,Y,X,W,C[P+10],z,38016083);W=f(W,V,Y,X,C[P+15],y,3634488961);X=f(X,W,V,Y,C[P+4],w,3889429448);Y=f(Y,X,W,V,C[P+9],A,568446438);V=f(V,Y,X,W,C[P+14],z,3275163606);W=f(W,V,Y,X,C[P+3],y,4107603335);X=f(X,W,V,Y,C[P+8],w,1163531501);Y=f(Y,X,W,V,C[P+13],A,2850285829);V=f(V,Y,X,W,C[P+2],z,4243563512);W=f(W,V,Y,X,C[P+7],y,1735328473);X=f(X,W,V,Y,C[P+12],w,2368359562);Y=D(Y,X,W,V,C[P+5],o,4294588738);V=D(V,Y,X,W,C[P+8],m,2272392833);W=D(W,V,Y,X,C[P+11],l,1839030562);X=D(X,W,V,Y,C[P+14],j,4259657740);Y=D(Y,X,W,V,C[P+1],o,2763975236);V=D(V,Y,X,W,C[P+4],m,1272893353);W=D(W,V,Y,X,C[P+7],l,4139469664);X=D(X,W,V,Y,C[P+10],j,3200236656);Y=D(Y,X,W,V,C[P+13],o,681279174);V=D(V,Y,X,W,C[P+0],m,3936430074);W=D(W,V,Y,X,C[P+3],l,3572445317);X=D(X,W,V,Y,C[P+6],j,76029189);Y=D(Y,X,W,V,C[P+9],o,3654602809);V=D(V,Y,X,W,C[P+12],m,3873151461);W=D(W,V,Y,X,C[P+15],l,530742520);X=D(X,W,V,Y,C[P+2],j,3299628645);Y=t(Y,X,W,V,C[P+0],U,4096336452);V=t(V,Y,X,W,C[P+7],T,1126891415);W=t(W,V,Y,X,C[P+14],R,2878612391);X=t(X,W,V,Y,C[P+5],O,4237533241);Y=t(Y,X,W,V,C[P+12],U,1700485571);V=t(V,Y,X,W,C[P+3],T,2399980690);W=t(W,V,Y,X,C[P+10],R,4293915773);X=t(X,W,V,Y,C[P+1],O,2240044497);Y=t(Y,X,W,V,C[P+8],U,1873313359);V=t(V,Y,X,W,C[P+15],T,4264355552);W=t(W,V,Y,X,C[P+6],R,2734768916);X=t(X,W,V,Y,C[P+13],O,1309151649);Y=t(Y,X,W,V,C[P+4],U,4149444226);V=t(V,Y,X,W,C[P+11],T,3174756917);W=t(W,V,Y,X,C[P+2],R,718787259);X=t(X,W,V,Y,C[P+9],O,3951481745);Y=K(Y,h);X=K(X,E);W=K(W,v);V=K(V,g)}return(B(Y)+B(X)+B(W)+B(V)).toLowerCase()}
computeAll();
</script>
<script src="ads.js"></script>
</body>
</html>