Text Case Converter

Transform your text with various case options and use other text utilities

Character Count: 0 Word Count: 0
Additional Text Options
'); printWindow.document.write(outputText.value.replace(//g, ">")); printWindow.document.write(''); printWindow.document.close(); printWindow.focus(); printWindow.print(); } else { showNotification('Nothing to print', 'warning'); } } function convertCase(caseType) { const text = inputText.value; if (!text && caseType !== 'clear') { showNotification('Please enter some text', 'warning'); inputText.focus(); return; } hideAuxiliarySections(); let result = ''; switch (caseType) { case 'upper': result = text.toUpperCase(); break; case 'lower': result = text.toLowerCase(); break; case 'sentence': result = text.toLowerCase().replace(/(^\s*|[.!?]\s*)\S/g, match => match.toUpperCase()); break; case 'capitalize': result = text.toLowerCase().replace(/\b\w/g, match => match.toUpperCase()); break; case 'toggle': result = text.split('').map(char => char === char.toUpperCase() ? char.toLowerCase() : char.toUpperCase() ).join(''); break; case 'alternate': result = text.split('').map((char, index) => index % 2 === 0 ? char.toUpperCase() : char.toLowerCase() ).join(''); break; } outputText.value = result; if (text) showNotification('Text transformed successfully', 'success'); } function hideAuxiliarySections() { findReplaceSection.style.display = 'none'; frequencyResultsCard.style.display = 'none'; } function removeExtraSpaces() { const text = inputText.value; if (!text) { showNotification('Please enter some text', 'warning'); inputText.focus(); return; } hideAuxiliarySections(); outputText.value = text.replace(/\s+/g, ' ').trim(); showNotification('Extra spaces removed', 'success'); } function removeLineBreaks() { const text = inputText.value; if (!text) { showNotification('Please enter some text', 'warning'); inputText.focus(); return; } hideAuxiliarySections(); outputText.value = text.replace(/(\r\n|\n|\r)/gm, ' ').trim(); showNotification('Line breaks removed', 'success'); } function reverseText() { const text = inputText.value; if (!text) { showNotification('Please enter some text', 'warning'); inputText.focus(); return; } hideAuxiliarySections(); outputText.value = text.split('').reverse().join(''); showNotification('Text reversed', 'success'); } function toggleFindReplace() { hideAuxiliarySections(); findReplaceSection.style.display = findReplaceSection.style.display === 'none' ? 'block' : 'none'; if (findReplaceSection.style.display === 'block') { findTextEl.focus(); } } function executeFindReplace() { const text = inputText.value; const findVal = findTextEl.value; const replaceVal = replaceTextEl.value; if (!text) { showNotification('Please enter some text in the input field', 'warning'); inputText.focus(); return; } if (!findVal) { showNotification('Please enter text in the "Find this" field', 'warning'); findTextEl.focus(); return; } const regex = new RegExp(findVal.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'), 'gi'); let replacementsMade = 0; const result = text.replace(regex, (match) => { replacementsMade++; return replaceVal; }); outputText.value = result; if (replacementsMade > 0) { showNotification(`${replacementsMade} replacement(s) made`, 'success'); } else { showNotification(`"${findVal}" not found`, 'info'); } } function showWordFrequency() { const text = inputText.value.trim(); if (!text) { showNotification('Please enter some text', 'warning'); inputText.focus(); return; } hideAuxiliarySections(); findReplaceSection.style.display = 'none'; const words = text.toLowerCase().match(/\b\w+\b/g); if (!words) { frequencyResultsArea.textContent = 'No words found.'; frequencyResultsCard.style.display = 'block'; frequencyResultsTitle.textContent = 'Word Frequency'; showNotification('No words found', 'info'); return; } const freqMap = {}; words.forEach(word => { freqMap[word] = (freqMap[word] || 0) + 1; }); const sortedFreq = Object.entries(freqMap).sort((a, b) => { if (b[1] === a[1]) { return a[0].localeCompare(b[0]); } return b[1] - a[1]; }); let output = 'Word : Count\n-------------------\n'; sortedFreq.forEach(([word, count]) => { output += `${word} : ${count}\n`; }); frequencyResultsArea.textContent = output; frequencyResultsTitle.textContent = 'Word Frequency'; frequencyResultsCard.style.display = 'block'; showNotification('Word frequency calculated', 'success'); } function showCharFrequency() { const text = inputText.value; if (!text) { showNotification('Please enter some text', 'warning'); inputText.focus(); return; } hideAuxiliarySections(); findReplaceSection.style.display = 'none'; const charMap = {}; for (let char of text) { charMap[char] = (charMap[char] || 0) + 1; } const sortedCharFreq = Object.entries(charMap).sort((a, b) => { if (b[1] === a[1]) { return a[0].localeCompare(b[0]); } return b[1] - a[1]; }); let output = 'Character : Count\n-----------------------\n'; sortedCharFreq.forEach(([char, count]) => { let displayChar = char; if (char === '\n') displayChar = '\\n (Newline)'; else if (char === '\t') displayChar = '\\t (Tab)'; else if (char === ' ') displayChar = "' ' (Space)"; output += `${displayChar} : ${count}\n`; }); frequencyResultsArea.textContent = output; frequencyResultsTitle.textContent = 'Character Frequency'; frequencyResultsCard.style.display = 'block'; showNotification('Character frequency calculated', 'success'); } function handleRemoveDuplicateLines() { const text = inputText.value; if (!text) { showNotification('Please enter some text', 'warning'); inputText.focus(); return; } hideAuxiliarySections(); const lines = text.split(/\r?\n/); const uniqueLines = []; const seenLines = new Set(); for (const line of lines) { if (!seenLines.has(line)) { uniqueLines.push(line); seenLines.add(line); } } outputText.value = uniqueLines.join('\n'); showNotification('Duplicate lines removed', 'success'); } function handleCountLines() { const text = inputText.value; if (!text) { outputText.value = 'Line Count: 0'; showNotification('Input is empty. Line count is 0.', 'info'); return; } hideAuxiliarySections(); const lines = text.split(/\r?\n/); let lineCount = lines.length; if (text.length === 0) { lineCount = 0; } else if (lines.length === 1 && lines[0] === '') { lineCount = 1; } outputText.value = `Total Lines: ${lineCount}`; showNotification(`Text contains ${lineCount} line(s)`, 'success'); } function showNotification(message, type = 'success') { if (toastMessageBody && notificationToastEl && bsToast) { toastMessageBody.textContent = message; notificationToastEl.classList.remove('bg-success', 'bg-danger', 'bg-warning', 'bg-info'); notificationToastEl.classList.add(`bg-${type}`); bsToast.show(); } else { console.warn("Toast notification system not fully initialized. Message:", message); } } })();

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Your All-in-One Text Transformation Hub

Effortlessly manage, format, and refine your text with our comprehensive suite of online tools.

Versatile Case Conversion

Switch between UPPERCASE, lowercase, Sentence Case, Title Case, and more with a single click.

Advanced Text Utilities

Go beyond case changes with Find & Replace, Word/Char Counters, Line Management, and more.

Instant & Accurate

Get immediate results for all your text manipulations, saving you valuable time and effort.

Free & Secure

Use all features for free without any sign-ups. Your data is processed in your browser and not stored.

📖 Mastering Text: More Than Just Case Conversion

Our Text Case Converter is more than just a tool to change text case; it’s a comprehensive solution for anyone who works with text regularly. Whether you’re a writer, editor, student, developer, or marketer, precise text formatting is key to clear communication and professionalism. This tool empowers you to not only switch between uppercase and lowercase but also to apply nuanced capitalization like Sentence case (ideal for readability) or Capitalize Word (often called Title Case, perfect for headlines). Explore options like tOGGLE cASE or AlTeRnAtE cAsE for specific stylistic needs.

🚀 Unlock Advanced Text Editing Capabilities

Beyond basic case conversion, our platform offers a suite of advanced text manipulation tools designed to streamline your workflow:

  • Find and Replace: Quickly locate specific words or phrases and replace them throughout your document, saving hours of manual editing.
  • Word & Character Frequency Counters: Gain insights into your text by analyzing how often specific words or characters appear. Essential for SEO keyword analysis and content optimization.
  • Line Management Tools:
    • Remove Duplicate Lines: Clean up lists or code by eliminating redundant entries.
    • Count Lines: Get an accurate line count, crucial for coding, poetry, or specific formatting requirements.
    • Remove Extra Spaces & Line Breaks: Ensure your text is neat and consistently formatted by removing unnecessary whitespace.
  • Reverse Text: A fun and sometimes useful tool for creating special effects or simple data obfuscation.

These integrated features make our tool a powerful online text editor and string manipulation utility, all available for free.

💡 Strategic Text Formatting for SEO & Engagement

How you format your text significantly impacts readability and Search Engine Optimization (SEO). Consistent and appropriate capitalization improves user experience, which search engines like Google reward. Consider these tips:

  • Headings (H1-H6): Use Title Case (Capitalize Word) or Sentence Case for your headings to improve scannability and clearly define your content structure. Our SEO text tool helps you achieve this consistently.
  • Meta Content: Your page titles and meta descriptions are crucial for click-through rates from search results. Title Case is often preferred for meta titles.
  • Readability: For body content, Sentence case is generally the most readable. Avoid using ALL CAPS extensively as it can be hard on the eyes and appear aggressive.
  • Consistency is Key: Maintain a uniform style of capitalization and formatting across your website for a professional look and feel.

❓ Frequently Asked Questions (FAQs)

Sentence case capitalizes only the first letter of the first word in each sentence (and proper nouns if the logic is advanced, though our basic version focuses on the first word after a period, question mark, or exclamation mark). Example: “This is a sentence. This is another one.”

Yes, absolutely! Our Text Case Converter and all its associated text utility features are completely free to use. There are no hidden charges, subscription fees, or limitations on usage.

Your privacy and data security are important to us. All text processing and conversions happen directly within your web browser (client-side). This means your text is not uploaded to or stored on our servers. Once you close your browser window or navigate away from the page, your text is gone.

Proper text formatting, including consistent and appropriate capitalization, plays a role in user experience and content readability. Search engines like Google favor content that is well-structured and easy for users to read. By using our tool to correctly format your titles (e.g., to Title Case or Sentence Case), headings, and body content, you can improve on-page SEO factors. Additionally, features like word and character counters can help you optimize meta descriptions and other length-sensitive SEO elements.