Ojoo - Developer Tools

Encoded Input Workspace

HTML Entities Input:

Click any preset sample to populate input instantly:

Entity Decoding Standard

Recursive mode unrolls nested entity encodings up to 5 passes until clean raw HTML source code is restored.

Output Workspace

Input Size0 B

Output Size0 B

Decoded Entities0

Security RiskClean HTML

HTML Entity Unescaping

Decodes named (<), decimal (<), and hexadecimal (<) HTML entities back to raw HTML markup tags.

Recursive Multi-Pass Unrolling

Detects and automatically unrolls nested double-encoded entities (e.g. &lt; ->< -><) up to 5 passes.

Security Threat Tag Scanner

Scans decoded raw HTML code for executable <script> tags and inline JavaScript event handlers before visual rendering.

`; // Save to History saveToHistory(text, data.result); }) .catch(err => { showToast('An unexpected network error occurred.', 'danger'); }); } btnCopyHtmlDecode.addEventListener('click', function () { navigator.clipboard.writeText(htmlDecodeOutputText.value); showToast('Decoded HTML copied to clipboard!', 'success'); }); btnDownloadHtmlDecode.addEventListener('click', function () { if (!htmlDecodeOutputText.value) return; const blob = new Blob([htmlDecodeOutputText.value], { type: 'text/html;charset=utf-8;' }); const url = URL.createObjectURL(blob); const a = document.createElement('a'); a.href = url; a.download = `html_decoded_${Date.now()}.html`; a.click(); URL.revokeObjectURL(url); showToast('Downloaded decoded HTML file!', 'success'); }); // History Functions function saveToHistory(raw, decoded) { let history = JSON.parse(localStorage.getItem('html_decode_history') || '[]'); history = history.filter(item => item.raw !== raw); history.unshift({ raw, decoded, time: new Date().toLocaleTimeString() }); if (history.length > 10) history.pop(); localStorage.setItem('html_decode_history', JSON.stringify(history)); renderHistory(); } function renderHistory() { htmlHistoryList.innerHTML = ''; let history = JSON.parse(localStorage.getItem('html_decode_history') || '[]'); if (history.length === 0) { htmlHistoryList.innerHTML = `

No recent request history.

`; return; } history.forEach(item => { const div = document.createElement('div'); div.className = 'p-2 border-bottom d-flex justify-content-between align-items-center font12px'; div.innerHTML = `

${escapeHtml(item.raw)}

`; htmlHistoryList.appendChild(div); }); htmlHistoryList.querySelectorAll('.btn-retest-history').forEach(btn => { btn.addEventListener('click', function () { htmlDecodeInput.value = this.getAttribute('data-raw'); decodeHtml(); }); }); } btnClearHistory.addEventListener('click', function () { localStorage.removeItem('html_decode_history'); renderHistory(); showToast('Decoding history cleared.', 'info'); }); function escapeHtml(str) { if (typeof str !== 'string') return str; return str.replace(/&/g, '&').replace(//g, '>').replace(/"/g, '"'); } renderHistory(); });

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