{"id":8309419,"date":"2025-07-30T08:12:00","date_gmt":"2025-07-30T05:12:00","guid":{"rendered":"https:\/\/elementor.com\/old\/?p=8309419"},"modified":"2025-07-30T08:12:00","modified_gmt":"2025-07-30T05:12:00","slug":"free-online-html-editor","status":"publish","type":"post","link":"https:\/\/elementor.com\/old\/nl\/tools\/free-online-html-editor\/","title":{"rendered":"Free Online HTML Editor"},"content":{"rendered":"\t\t<div data-elementor-type=\"container\" data-elementor-id=\"8308172\" class=\"elementor elementor-8308172\" data-elementor-post-type=\"elementor_library\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7b1f074e e-flex e-con-boxed e-con e-parent\" data-id=\"7b1f074e\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2fb61306 elementor-widget elementor-widget-html\" data-id=\"2fb61306\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>\n    .html-viewer-app {\n        width: 100%;\n        max-width: 1280px;\n        margin: 0 auto;\n        padding: 60px 0 0;\n        background: transparent;\n        overflow: visible;\n        position: relative;\n    }\n\n    .copy-btn-container {\n        position: absolute;\n        top: -60px;\n        right: 0;\n        z-index: 100;\n    }\n\n    .copy-btn {\n        background-color: rgb(255, 255, 255);\n        color: black;\n        border: 1px solid #ddd;\n        padding: 8px 16px;\n        border-radius: 4px;\n        cursor: pointer;\n        font-size: 14px;\n        display: flex;\n        align-items: center;\n        gap: 8px;\n        transition: background-color 0.2s;\n        box-shadow: 0 0 10px rgba(0,0,0,0.1);\n    }\n\n    .format-btn {\n        background-color: #000;\n        color: white;\n        border: none;\n        padding: 12px 20px;\n        cursor: pointer;\n        font-size: 1.125rem;\n        font-weight: 500;\n        transition: all 0.2s;\n        pointer-events: all;\n        min-width: 11rem;\n        text-align: center;\n    }\n\n    .format-btn:is(:hover, :focus, :focus-visible, :active){\n        background-color: #545454;\n    }\n\n    #minifyBtn {\n    background-color: #ff7be5;\n    color: black;\n}\n\n#minifyBtn:is(:hover, :focus, :focus-visible, :active) {\n    background-color: #ffa8ee;\n}\n\n\n    .reset-btn {\n        background: none;\n        border: none;\n        color: black;\n        text-decoration: underline;\n        font-size: 1rem;\n        cursor: pointer;\n        padding: 0;\n        margin-top: 12px;\n        transition: color 0.2s;\n    }\n\n    .reset-btn:is(:hover, :focus, :focus-visible, :active) {\n       background: none;\n       color: #545454;\n       text-decoration: underline;\n    }\n\n    .copy-btn:is(:hover, :focus, :focus-visible) {\n        background-color: #f6f6f6 !important;\n        color: black;\n    }\n\n    .main-content {\n        display: flex;\n        gap: 3vw;\n        height: 460px;\n        position: relative;\n        align-items: center;\n        justify-content: center;\n        flex-wrap: nowrap;\n        flex-direction: row;\n    }\n\n    .input-section, .output-section {\n        flex: 1;\n        min-width: 0;\n        max-width: 600px;\n        height: 460px;\n        display: flex;\n        flex-direction: column;\n        background: white;\n        border-radius: 8px;\n        overflow: hidden;\n    }\n\n    .section-header {\n        background-color: #05047E;\n        color: white;\n        padding: 12px 20px;\n        font-family: 'DM Sans';\n        font-weight: 400;\n        font-size: 1.125rem;\n    }\n\n    .textarea-container {\n        flex: 1;\n        position: relative;\n        background-color: #ffffff;\n        border: 1.5px solid #EBEBEB;\n    }\n\n    .output-container {\n        flex: 1;\n        position: relative;\n        background-color: #ffffff;\n        border: 1.5px solid #EBEBEB;\n        overflow: auto;\n    }\n\n    .line-numbers {\n        position: absolute;\n        left: 0;\n        top: 0;\n        width: 40px;\n        height: 100%;\n        background-color: #EBEBEB;\n        border-right: 1px solid #dee2e6;\n        padding: 15px 0;\n        font-family: 'DM Sans';\n        font-size: 12px;\n        color: #6c757d;\n        text-align: center;\n        line-height: 1.5;\n        overflow: hidden;\n    }\n\n    .code-textarea {\n        width: 100%;\n        height: 100%;\n        border: none;\n        outline: none;\n        padding: 15px 15px 15px 50px;\n        font-family: 'Courier New', monospace;\n        font-size: 13px;\n        line-height: 1.5;\n        background-color: transparent;\n        resize: none;\n        color: #333;\n    }\n\n    .code-textarea::placeholder {\n        color: #adb5bd;\n        font-style: italic;\n    }\n\n    .output-iframe {\n        width: 100%;\n        height: 100%;\n        border: none;\n        background: white;\n    }\n\n    .output-code {\n        width: 100%;\n        height: 100%;\n        border: none;\n        outline: none;\n        padding: 15px;\n        font-family: 'Courier New', monospace;\n        font-size: 13px;\n        line-height: 1.5;\n        background-color: white;\n        resize: none;\n        color: #333;\n        overflow: auto;\n        white-space: pre;\n    }\n\n    .format-btn-container {\n        flex: 0 0 150px;\n        display: flex;\n        justify-content: center;\n        align-items: center;\n    }\n\n    .success-message {\n        position: fixed;\n        top: 20px;\n        right: 20px;\n        background-color: #28a745;\n        color: white;\n        padding: 12px 20px;\n        border-radius: 4px;\n        font-size: 14px;\n        opacity: 0;\n        transform: translateX(100%);\n        transition: all 0.3s ease;\n        z-index: 1000;\n    }\n\n    .success-message.show {\n        opacity: 1;\n        transform: translateX(0);\n    }\n\n    @media (max-width: 1024px) {\n        .main-content {\n            flex-direction: column;\n            gap: 15px;\n            height: auto;\n        }\n\n        .input-section, .output-section {\n            min-height: 450px !important;\n            width: 100%;\n            max-width: 700px;\n        }\n\n        .textarea-container {\n            height: calc(100% - 42px);\n        }\n\n        .format-btn-container {\n            margin: 15px 0;\n            flex: 0 0 50px;\n        }\n\n        .copy-btn-container {\n            position: relative;\n            margin: 70px auto 0;\n            text-align: center;\n        }\n    }\n\n    @media (max-width: 768px) {\n        .input-section, .output-section {\n            min-height: 312px !important;\n        }\n\n        .textarea-container {\n            height: calc(100% - 42px);\n        }\n    }\n<\/style>\n\n<div class=\"html-viewer-app\">\n    <div class=\"main-content\">\n        <div class=\"input-section\">\n            <div class=\"section-header\">HTML<\/div>\n            <div class=\"textarea-container\">\n                <div class=\"line-numbers\" id=\"inputLineNumbers\">1<\/div>\n                <textarea class=\"code-textarea\" id=\"inputHTML\" placeholder=\"Paste or type your HTML code here...\" spellcheck=\"false\"><\/textarea>\n            <\/div>\n        <\/div>\n\n        <div class=\"format-btn-container\">\n            <div style=\"display: flex; flex-direction: column; gap: 10px;\">\n                <button class=\"format-btn\" id=\"runViewBtn\">Run\/View<\/button>\n                <button class=\"format-btn\" id=\"beautifyBtn\">Beautify HTML<\/button>\n                <button class=\"format-btn\" id=\"minifyBtn\">Minify HTML<\/button>\n                <button class=\"format-btn reset-btn\" id=\"resetBtn\">Reset<\/button>\n            <\/div>\n        <\/div>\n\n        <div class=\"output-section\">\n            <div class=\"section-header\">Output<\/div>\n            <div class=\"output-container\">\n                <iframe class=\"output-iframe\" id=\"outputFrame\" sandbox=\"allow-scripts allow-same-origin\"><\/iframe>\n                <textarea class=\"output-code\" id=\"outputCode\" readonly style=\"display: none;\"><\/textarea>\n            <\/div>\n        <\/div>\n\n        <div class=\"copy-btn-container\">\n            <button class=\"copy-btn\" id=\"copyBtn\">\n                <svg width=\"16\" height=\"16\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\">\n                    <rect x=\"9\" y=\"9\" width=\"13\" height=\"13\" rx=\"2\" ry=\"2\"><\/rect>\n                    <path d=\"M5 15H4a2 2 0 0 1-2-2v-9a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1\"><\/path>\n                <\/svg>\n                Copy Code\n            <\/button>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"success-message\" id=\"successMessage\">\n    Code copied to clipboard!\n<\/div>\n\n<script>\n    class HTMLViewer {\n        constructor() {\n            this.inputTextarea = document.getElementById('inputHTML');\n            this.outputFrame = document.getElementById('outputFrame');\n            this.outputCode = document.getElementById('outputCode');\n            this.runViewBtn = document.getElementById('runViewBtn');\n            this.beautifyBtn = document.getElementById('beautifyBtn');\n            this.minifyBtn = document.getElementById('minifyBtn');\n            this.copyBtn = document.getElementById('copyBtn');\n            this.resetBtn = document.getElementById('resetBtn');\n            this.successMessage = document.getElementById('successMessage');\n            this.inputLineNumbers = document.getElementById('inputLineNumbers');\n            this.currentOutput = '';\n            this.isCodeView = false;\n            this.init();\n        }\n\n        init() {\n            this.runViewBtn.addEventListener('click', () => this.runView());\n            this.beautifyBtn.addEventListener('click', () => this.beautifyHTML());\n            this.minifyBtn.addEventListener('click', () => this.minifyHTML());\n            this.copyBtn.addEventListener('click', () => this.copyToClipboard());\n            this.resetBtn.addEventListener('click', () => this.resetEditor());\n            this.inputTextarea.addEventListener('input', () => this.updateLineNumbers());\n            this.inputTextarea.addEventListener('scroll', () => this.syncScroll());\n        }\n\n        resetEditor() {\n            this.inputTextarea.value = '';\n            this.outputFrame.src = 'about:blank';\n            this.outputCode.value = '';\n            this.currentOutput = '';\n            this.showIframe();\n            this.updateLineNumbers();\n        }\n\n        showIframe() {\n            this.outputFrame.style.display = 'block';\n            this.outputCode.style.display = 'none';\n            this.isCodeView = false;\n        }\n\n 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id: 8308183 });\n            }\n        }, 3000);\n\n    } catch (error) {\n        console.error('Error rendering HTML:', error);\n    }\n}\n\n        beautifyHTML() {\n            const html = this.inputTextarea.value.trim();\n            if (!html) {\n                return;\n            }\n\n            try {\n                const beautified = this.beautifyHTMLCode(html);\n                this.outputCode.value = beautified;\n                this.currentOutput = beautified;\n                this.showCodeOutput();\n            } catch (error) {\n                console.error('Error beautifying HTML:', error);\n            }\n        }\n\n        minifyHTML() {\n            const html = this.inputTextarea.value.trim();\n            if (!html) {\n                return;\n            }\n\n            try {\n                const minified = this.minifyHTMLCode(html);\n                this.outputCode.value = minified;\n                this.currentOutput = minified;\n                this.showCodeOutput();\n            } catch (error) {\n                console.error('Error minifying HTML:', error);\n            }\n        }\n\n        beautifyHTMLCode(html) {\n            let formatted = '';\n            let indentLevel = 0;\n            const indent = '  ';\n            let i = 0;\n\n            \/\/ Remove extra whitespace but preserve content\n            html = html.replace(\/>\\s+<\/g, '><').trim();\n\n            while (i < html.length) {\n                if (html[i] === '<') {\n                    const tagEnd = html.indexOf('>', i);\n                    if (tagEnd === -1) break;\n\n                    const tag = html.substring(i, tagEnd + 1);\n                    const tagName = tag.match(\/<\\\/?([^\\s>]+)\/);\n                    \n                    if (tagName) {\n                        const name = tagName[1].toLowerCase();\n                        \n                        \/\/ Check if it's a closing tag\n                        if 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