How to Add Emojis to Email Subject Lines and Body

Why Use Emojis in Email

Emojis in email subject lines can increase open rates by standing out in a crowded inbox. A single well-chosen emoji acts as a visual anchor — ✈️ for a travel newsletter, 🔥 for a sale, 📅 for a calendar reminder. They also convey tone at a glance, making the subject line feel warmer or more urgent.

In the email body, emojis can break up long text, highlight key points, and reinforce your brand's voice. This guide covers how to insert emojis in all major email clients, how they render across platforms, and what to avoid.

Method 1: Copy and Paste (Works Everywhere)

The most reliable method for any email client is to copy an emoji from a reference site and paste it into your subject line or body.

1. Find the emoji you want — use EmojiFYI's Emoji Keyboard or search on your phone's emoji picker
2. Copy it to your clipboard
3. Open your email compose window
4. Paste with Ctrl + V (Windows/Linux) or Command + V (Mac)

This works in Gmail, Outlook, Apple Mail, Yahoo Mail, Thunderbird, and virtually every webmail interface because all modern email clients support UTF-8UTF-8
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Method 2: Using Your OS Emoji Picker

Gmail in a Browser (Mac)

Press Control + Command + Space to open the macOS Character Viewer, then click any emoji to insert it at your cursor position inside the Gmail compose window.

Gmail in a Browser (Windows)

Press Windows + . (period) or Windows + ; (semicolon) to open the Windows emoji picker, then click to insert.

Gmail in a Browser (Linux)

Use Ctrl + Shift + E (GNOME/IBus) or the Unicode hex input method (Ctrl + Shift + U → hex code → Enter).

Outlook Desktop App (Windows)

1. Place your cursor in the subject line or body
2. Press Windows + . to open the emoji picker
3. Click an emoji to insert it

Alternatively, go to the Insert tab → Symbol → More Symbols, then set the font to Segoe UI Emoji and browse the character map.

Apple Mail (Mac)

Click in the subject or body field, then press Control + Command + Space to open the Character Viewer.

Method 3: HTML Email and Emoji Entities

If you are sending HTML-formatted email via an ESP (Email Service Provider) like Mailchimp, Klaviyo, or HubSpot, you can embed emojis using UTF-8 characters or HTML numeric entities.

Direct UTF-8 in HTML Templates

<h1>🔥 Flash Sale — 50% Off Today Only!</h1>
<p>Don't miss out ⏰ — offer expires at midnight.</p>

Ensure your HTML email template includes the UTF-8 charset declaration:

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

HTML Entities as a Fallback

If your template editor strips non-ASCII characters, use hex entities:

<h1>&#x1F525; Flash Sale — 50% Off Today Only!</h1>

Emoji Rendering in Email Clients

Emojis in email are rendered using the recipient's operating system emoji font, not a font you specify. This means the same emoji can look noticeably different across clients:

For business emails, check how your chosen emojis look on the platforms your audience uses. Emojis that look friendly on Apple devices may appear flat or different on Windows. Stick to universally understood emojis like ✅, ⭐, 🔥, and ❤️ rather than obscure ones whose appearance varies significantly.

Best Practices for Email Subject Lines

Dos

• Place the emoji at the start or end of the subject line: 🔥 Summer Sale Starts Now or Summer Sale Starts Now 🔥
• Use one emoji maximum in most subject lines — two at most for promotional emails
• Match the emoji to the tone: 🎉 for celebrations, ⚠️ for warnings, 📣 for announcements
• Test in multiple clients before sending to your full list

Don'ts

• Do not use emojis in every email — they lose impact quickly
• Avoid emoji strings like 🔥💯🎯✨ — looks spammy to both humans and spam filters
• Do not use emojis whose meaning is ambiguous or platform-inconsistent as the primary message signal
• Do not rely on an emoji alone to convey critical information (it may not render)

Subject Line Examples by Category

E-commerce / Sales

🔥 Last chance: 40% off ends tonight
⏳ Only 3 hours left — Flash Sale
🛒 Your cart misses you

Newsletters / Content

📰 This week in tech: AI takes over everything
📚 5 books we loved this month
🌍 How this city changed its transportation forever

Transactional / Notifications

✅ Your order has shipped!
📦 Your package is out for delivery
🔑 Your account password was changed

Events / Invitations

📅 You're invited — join us on March 15th
🎉 It's almost time! Your event starts tomorrow
✈️ Travel reminder: Check-in opens in 24 hours

Handling Clients That Don't Render Emojis

A small percentage of email clients — some older Outlook versions and corporate mail clients — may not render emojis at all, showing a square (▢) or nothing. To handle this gracefully:

• Write subject lines that work even without the emoji: 🔥 Sale ends tonight still reads as Sale ends tonight if 🔥 is dropped
• Do not use an emoji as the only indicator of meaning — always include text
• Place emojis at the beginning or end where their absence is least disruptive

Testing Your Emails with Emojis

Before sending, test how your emoji-rich email renders across clients:

1. Send a test to yourself and open it on iOS, Android, and a Windows PC
2. Use email preview tools like Litmus or Email on Acid to see renders across 90+ clients
3. Check your spam score — too many emojis can raise spam filter flags

Explore More on EmojiFYI

• Use the Emoji Keyboard to browse and copy emojis for your email campaigns
• Convert descriptive text to emojis with Text to Emoji
• Search for the perfect emoji by keyword at EmojiFYI Search
• Learn how emojis render differently across platforms with the Platform Comparison Tool