Text Case Converter | Advanced Online Text Utility ToolTEXT 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.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);
}
}
});
