💎 Palindrome Checker

Check if text reads same forwards and backwards. Free tool.

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About This Tool

Check if text reads same forwards and backwards. Free tool.

How to Use

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function initTool() { document.getElementById('tool-app').innerHTML = '
'; } function doIt() { var text = document.getElementById('inp').value.replace(/[^a-zA-Z0-9]/g,'').toLowerCase(); var isPal = text === text.split('').reverse().join(''); document.getElementById('out').innerHTML = isPal ? '✅ 是回文！' : '❌ 不是回文'; document.getElementById('out').style.color = isPal ? '#27ae60' : '#e74c3c'; } window.addEventListener('DOMContentLoaded', initTool); n