Free Tool

Email Signature Builder

Design a polished email signature in minutes. Choose a template, customize colors, add your details and social links, then copy and paste into your email client.

Your Details

Images & Social

Jane Smith

Jane Smith

Head of Marketing | Acme Inc.

jane@acme.com  |  +1 (555) 123-4567  |  acme.com

LinkedIn  |  Twitter

Acme Inc.

Paste in: Gmail → Settings → Signature | Outlook → Settings → Mail → Email signature

What is Email Signature?

An email signature is the block of text and images that appears at the end of every email you send. A professional HTML signature includes your name, title, contact information, company logo, and social media links — all formatted consistently and compatible with major email clients.

Why It Matters

Your email signature is the last thing a recipient sees and often the first thing they click. A professional signature builds credibility, drives traffic to your website and social profiles, and keeps your brand consistent across every email. For sales teams sending cold outreach, a polished signature can be the difference between a reply and a delete.

How to Use This Tool

1

Fill In Your Details

Enter your name, title, company, and contact information. Add your profile photo and company logo URLs for a polished look.

2

Customize Your Design

Choose a template layout, pick your brand color, and add social media links. The live preview updates as you make changes.

3

Copy and Install

Click 'Copy Signature' to copy the formatted signature. Open your email client's signature settings and paste it in. Works with Gmail, Outlook, and Apple Mail.

Common Mistakes to Avoid

Embedding images as base64 instead of hosting them

Most email clients block base64-encoded images for security reasons. Always host your logo and photo on a public URL so they display correctly in every inbox.

Making the signature too long

A signature that takes up half the email screen looks unprofessional. Keep it to 3-4 lines of text, one logo, and essential social links only. Less is more.

Using custom fonts that don't render everywhere

Stick to web-safe fonts like Arial, Helvetica, or Georgia. Custom fonts fall back to default system fonts in most email clients, breaking your design.

Including too many social links

Adding every social platform dilutes click-through. Include only the 2-3 platforms where you're actually active and where your audience hangs out.

Frequently Asked Questions

Yes. The signature uses table-based HTML with inline styles, which is the most compatible format across email clients including Gmail, Outlook, Apple Mail, Yahoo Mail, and Thunderbird.

Yes. Enter the URL of your hosted profile photo. The image should be hosted on a public URL (your website, LinkedIn, etc.) for it to display in all email clients. Most clients block base64-encoded images.

Email clients download images from URLs when displaying emails. Images embedded as base64 data are blocked by most clients for security reasons. Host your logo and photo on your website or a service like Imgur.

Go to Gmail Settings → See all settings → General tab → Signature section. Click '+ Create new', then paste your copied signature into the editor. Click Save Changes at the bottom.

In Outlook, go to Settings → Mail → Compose and reply → Email signature. Paste your copied signature into the editor. For the desktop app, go to File → Options → Mail → Signatures.

Yes. Most email clients support multiple signatures. Create separate signatures for different email accounts, roles, or purposes (e.g., formal vs. casual).

Great signature. Now make sure it gets seen.

A professional signature only matters if your emails reach the inbox. TrulyInbox warms up your mailbox and monitors deliverability so your emails land where they should.