What is a disposable temporary email?

A disposable temporary email is a short-lived email address used to protect your primary inbox from spam. It requires no registration and expires automatically, keeping your identity safe.

Is testsmail completely free and safe?

Yes, testsmail is 100% free and prioritizes user privacy. We do not store personal data and emails are deleted after a temporary period.

Does testsmail offer professional tools?

Yes! Beyond disposable email, we offer a professional Resume Maker, HTML Viewer, JSON Formatter, JWT Debugger, Regex Tester, Password Generator, QR Code Generator, and 200+ other free productivity tools for developers and job seekers.

Can I get a private email inbox on my own domain with testsmail?

Yes. With a free testsmail account you can switch to Private mode and route mail to your private inbox by adding the X-Applied-Token header to your outgoing messages. Private mail is stored end-to-end encrypted and only visible to you.

Can I auto-forward my disposable emails to my real email address?

Yes. In your profile you can set a verified forwarding address, and testsmail will automatically forward mail from your private inbox to your real email so you never miss an important message while keeping your real address hidden.

Does testsmail have a developer API for automated testing?

Yes. testsmail provides a developer API key for programmatic access to your inbox, making it ideal for QA automation, CI/CD pipelines, and testing sign-up, OTP, and verification email flows.

Is testsmail good for receiving OTP and verification codes?

Yes. Emails arrive in your testsmail inbox instantly, so it is ideal for receiving one-time passwords (OTP), verification links, and confirmation codes when signing up for websites and apps without exposing your personal email.

Real-time HTML Viewer & Editor - Free Online Web Tool

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HTML Editor

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>TestsMail - Secure Private Email</title>
    <style>
        :root {
            --primary: #3b82f6;
            --secondary: #1e293b;
            --accent: #60a5fa;
            --bg: #0f172a;
            --text: #f8fafc;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background: var(--bg);
            color: var(--text);
            margin: 0;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            overflow: hidden;
        }
        .hero {
            text-align: center;
            padding: 4rem 2rem;
            background: radial-gradient(circle at center, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
            border-radius: 3rem;
            border: 1px solid rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            max-width: 800px;
            animation: slideUp 0.8s ease-out;
        }
        h1 {
            font-size: 3.5rem;
            font-weight: 900;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #fff 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        p {
            font-size: 1.25rem;
            color: #94a3b8;
            line-height: 1.6;
            margin-bottom: 2.5rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-group {
            display: flex;
            gap: 1rem;
            justify-content: center;
        }
        .btn {
            padding: 1rem 2rem;
            border-radius: 1rem;
            font-weight: 700;
            font-size: 1rem;
            text-decoration: none;
            transition: all 0.3s;
        }
        .btn-primary {
            background: var(--primary);
            color: white;
            box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(59, 130, 246, 0.4);
            background: var(--accent);
        }
        .features {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
            margin-top: 4rem;
        }
        .feature-item {
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 1.5rem;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }
        .feature-item h3 { color: var(--primary); margin-bottom: 0.5rem; }
        .feature-item p { font-size: 0.9rem; margin: 0; }
        
        @keyframes slideUp {
            from { opacity: 0; transform: translateY(40px); }
            to { opacity: 1; transform: translateY(0); }
        }
    </style>
</head>
<body>
    <div class="hero">
        <h1>Welcome to TestsMail</h1>
        <p>Your ultimate destination for secure, anonymous temporary email and professional developer tools.</p>
        
        <div class="cta-group">
            <a href="#" class="btn btn-primary">Get Started Now</a>
        </div>

<div class="features">
            <div class="feature-item">
                <h3>Private</h3>
                <p>Fully anonymous disposable inboxes.</p>
            </div>
            <div class="feature-item">
                <h3>Secure</h3>
                <p>Encrypted data and no registration.</p>
            </div>
            <div class="feature-item">
                <h3>Powerful</h3>
                <p>Built-in tools for modern web devs.</p>
            </div>
        </div>
    </div>
</body>
</html>

Live Preview

Master Modern Web Concepts

Semantic HTML5

Beyond style, semantics tell search engines and screen readers what your content is. Use <article>, <section>, and <header> to improve accessibility and SEO.

Fast Prototyping

Test designs, animations, and CSS layouts instantly. This real-time environment is perfect for experimently with flexbox, grid, and modern web APIs without setup.

Sandboxed Safe

Your previews run in a secure sandbox. This allows you to test scripts and styles without worrying about interfering with the main application or your system security.

Frequently Asked Questions

Common questions about the HTML Viewer.

What does the HTML viewer do?

It renders raw HTML code and shows you the live visual output, so you can preview markup without creating a file.

Is my HTML code uploaded anywhere?

No. The HTML is rendered locally in your browser and nothing is sent to a server.

Is the HTML viewer free?

Yes, it is completely free with no registration.

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