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Make AI Text Sound Human

Paste your robotic, AI-sounding text. HumanWritr rewrites it into natural, human-like writing in one click.

Humanize My Text → How it works
Trusted for essays, blogs, emails & assignments · 100% free

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Paste up to 2,000 words. Your text never leaves your browser.

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🔒 Private by design — everything runs in your browser. We never see or store your text.

Why HumanWritr?

🆓

100% Free

No signup, no paywall, no word-count traps. Humanize up to 2,000 words per go.

⚡

Instant Results

Runs entirely in your browser — rewritten text in under a second, even offline.

🔒

Private

Your text never leaves your device. Nothing uploaded, nothing stored, nothing sold.

🎯

Removes AI Tells

Strips robotic phrases like “delve”, “moreover” and “in today's fast-paced world”.

🎭

3 Writing Modes

Humanize, Formal and Casual tones for essays, business emails or friendly blogs.

📊

Human Score

See exactly what changed — phrases rewritten, sentences split, contractions added.

How it works

1

Paste

Drop in your AI-generated draft.

2

Humanize

Pick a mode & intensity, hit the button.

3

Copy

Grab your natural-sounding rewrite.

Built for

🎓 Students

Polish AI-assisted drafts into natural essays and assignments.

✍️ Bloggers

Give AI outlines a human voice your readers trust.

💼 Professionals

Turn stiff AI emails into warm, confident messages.

Frequently asked questions

Is HumanWritr really free?

Yes. The core humanizer is free with no account required. A Pro version with higher limits is planned for later.

Does it bypass AI detectors?

HumanWritr rewrites robotic phrasing into natural writing, which reads more human. No tool can guarantee detector results — always review and add your own voice.

Is my text private?

Completely. All processing happens in your browser; your text is never sent to our servers.

What are the limits?

2,000 words per run on the free plan. For longer documents, split them into parts.

Which languages are supported?

Currently English. More languages are on the roadmap.

Ready to sound human?

Start Humanizing — Free →
💬 '); } // Replace whole-word/phrase occurrences, preserving leading capitalisation. function replacePhrase(text, from, to) { if (!to) { // removal: drop the phrase, tidy spaces const re = new RegExp('(^|[\\s(])' + escapeReg(from) + '(?=[\\s.,;:!?)]|$)', 'gi'); return text.replace(re, function (m, p1) { return p1; }); } const re = new RegExp('(^|[\\s(])' + escapeReg(from) + '(?=[\\s.,;:!?)]|$)', 'gi'); return text.replace(re, function (m, p1, offset, str) { const matched = m.slice(p1.length); let rep = to; if (matched[0] === matched[0].toUpperCase() && /[A-Z]/.test(matched[0])) { rep = rep.charAt(0).toUpperCase() + rep.slice(1); } return p1 + rep; }); } function splitSentences(text) { // Split on sentence-ending punctuation, keeping the delimiter. const parts = text.match(/[^.!?…]+[.!?…]+["'”’)]*|\s*[^.!?…]+$/g); return (parts || [text]).map(function (s) { return s.trim(); }).filter(Boolean); } function joinSentences(sentences) { return sentences.join(' ') .replace(/\s+([.,;:!?])/g, '$1') .replace(/\s{2,}/g, ' ') .trim(); } // Break very long sentences at natural joints for "burstiness". function breakLongSentence(s) { const words = s.split(/\s+/); if (words.length <= 26) return [s]; const joints = [', and ', ', but ', '; ', ' — ', ', which ', ', while ', ', whereas ']; for (var i = 0; i < joints.length; i++) { var idx = s.indexOf(joints[i], Math.floor(s.length * 0.35)); if (idx > 0) { var a = s.slice(0, idx).trim(); var b = s.slice(idx + joints[i].length).trim(); // Capitalise the new sentence start. b = b.charAt(0).toUpperCase() + b.slice(1); // Fix ending punctuation of first half. if (!/[.!?…]$/.test(a)) a += '.'; return [a, b]; } } return [s]; } /* ---------- main engine ---------- */ function humanize(input, options) { options = options || {}; var intensity = options.intensity == null ? 1 : options.intensity; // 0..1 var stats = { replacements: 0, contractions: 0, splits: 0, removals: 0 }; if (!input || !input.trim()) return { text: '', stats: stats }; var text = input.trim().replace(/\s+/g, ' '); // 1) AI phrases -> human (sorted longest-first so multi-word wins) var phrases = PHRASE_MAP.slice().sort(function (a, b) { return b[0].length - a[0].length; }); phrases.forEach(function (pair) { var before = text; text = replacePhrase(text, pair[0], pair[1]); if (text !== before) { if (pair[1] === '') stats.removals++; else stats.replacements++; } }); // 2) Contractions (skip at intensity < 0.4 for formal mode) if (intensity >= 0.4) { CONTRACTIONS.forEach(function (pair) { var before = text; text = replacePhrase(text, pair[0], pair[1]); if (text !== before) stats.contractions++; }); } // 3) Starter variety STARTER_SWAPS.forEach(function (pair) { var before = text; text = replacePhrase(text, pair[0], pair[1]); if (text !== before) stats.replacements++; }); // 4) Sentence rhythm: split long sentences var sentences = splitSentences(text); var out = []; sentences.forEach(function (s) { var parts = breakLongSentence(s); if (parts.length > 1) stats.splits += parts.length - 1; out = out.concat(parts); }); text = joinSentences(out); // 5) Tidy-up: fix double spaces, space before punctuation, capitalisation after splits text = text .replace(/\s+([.,;:!?])/g, '$1') .replace(/([.!?…])\s*([a-z])/g, function (m, p, c) { return p + ' ' + c.toUpperCase(); }) .replace(/\s{2,}/g, ' ') .replace(/^\s+|\s+$/g, ''); // Ensure first character is capitalised if (text) text = text.charAt(0).toUpperCase() + text.slice(1); var wordsIn = input.trim().split(/\s+/).length; var changed = stats.replacements + stats.contractions + stats.splits + stats.removals; stats.humanScore = Math.min(98, Math.round(42 + changed * 3 + Math.min(20, wordsIn / 12))); return { text: text, stats: stats }; } function countWords(s) { s = (s || '').trim(); return s ? s.split(/\s+/).length : 0; } // Public API window.HumanWritr = { humanize: humanize, countWords: countWords, version: '1.0.0' }; })();