Online HTML Editor — Live Preview as You Type

'; }function setStatus(text) { status.textContent = text; }function runPreview() { consoleBox.textContent = "No console messages yet."; preview.srcdoc = buildDocument(); setStatus("Updated just now"); }function scheduleRun() { setStatus("Typing..."); window.clearTimeout(runTimer); runTimer = window.setTimeout(runPreview, 450); }function downloadHtml() { const blob = new Blob([buildDocument()], { type: "text/html" }); const url = URL.createObjectURL(blob); const link = document.createElement("a"); link.href = url; link.download = "online-html-editor-code.html"; document.body.appendChild(link); link.click(); document.body.removeChild(link); URL.revokeObjectURL(url); }function copyCode() { const code = buildDocument(); if (!navigator.clipboard) { setStatus("Clipboard not available"); return; } navigator.clipboard.writeText(code).then(function() { setStatus("Code copied"); }).catch(function() { setStatus("Copy failed"); }); }function resetCode() { fields.html.value = defaults.html; fields.css.value = defaults.css; fields.js.value = defaults.js; runPreview(); }app.querySelectorAll("[data-phe-tab]").forEach(function(tab) { tab.addEventListener("click", function() { const name = tab.dataset.pheTab; app.querySelectorAll("[data-phe-tab]").forEach(function(item) { item.classList.toggle("is-active", item === tab); }); app.querySelectorAll("[data-phe-panel]").forEach(function(panel) { panel.classList.toggle("is-active", panel.dataset.phePanel === name); }); }); });Object.keys(fields).forEach(function(key) { fields[key].addEventListener("input", scheduleRun); fields[key].addEventListener("keydown", function(event) { if (event.key === "Tab") { event.preventDefault(); const start = fields[key].selectionStart; const end = fields[key].selectionEnd; fields[key].value = fields[key].value.substring(0, start) + " " + fields[key].value.substring(end); fields[key].selectionStart = fields[key].selectionEnd = start + 2; scheduleRun(); } }); });app.querySelector('[data-phe-action="run"]').addEventListener("click", runPreview); app.querySelector('[data-phe-action="download"]').addEventListener("click", downloadHtml); app.querySelector('[data-phe-action="copy"]').addEventListener("click", copyCode); app.querySelector('[data-phe-action="reset"]').addEventListener("click", resetCode);window.addEventListener("message", function(event) { if (event.source !== preview.contentWindow || !event.data || event.data.source !== "phe-preview") return; const line = "[" + event.data.type + "] " + event.data.args.join(" "); consoleBox.textContent = consoleBox.textContent === "No console messages yet." ? line : consoleBox.textContent + "\n" + line; });runPreview(); })();