Free Email Signature Generator for Outlook

Outlook is notorious for breaking email signatures. It uses Microsoft Word's rendering engine, which doesn't support modern CSS. NeatStamp solves this by generating signatures with table-based HTML and inline CSS — the only method guaranteed to work in every version of Outlook.

Create Your Outlook Signature — Free

How to Add an Email Signature in Outlook

1

Create your signature with NeatStamp

Enter your details and choose a template. Every NeatStamp template is built with Outlook-safe HTML.

2

Click 'Copy Signature'

NeatStamp copies Outlook-compatible HTML to your clipboard. No broken tables, no missing images.

3

Open Outlook Signature Settings

Outlook Desktop: File → Options → Mail → Signatures. Outlook Web: Settings → View all Outlook settings → Mail → Compose and reply.

4

Create a new signature and paste

Click 'New', give it a name, then paste your NeatStamp signature into the editor.

5

Set as default

Choose your new signature as the default for new messages and/or replies. Click OK.

Why Use NeatStamp for Outlook?

  • Table-based HTML layout — guaranteed to work in Outlook
  • Inline CSS — no external stylesheets that Outlook strips
  • Compatible with Outlook 2016, 2019, 2021, Microsoft 365
  • Works in Outlook Web (OWA) and Outlook Mobile
  • No broken images — optimized image sizing for Outlook's DPI handling

FAQ: Email Signatures for Outlook

Why do other signatures break in Outlook?

Outlook uses Microsoft Word's HTML rendering engine instead of a web browser engine. This means it doesn't support CSS flexbox, grid, float, or many modern CSS properties. NeatStamp uses only table-based layouts and inline CSS — the only approach that works reliably across all Outlook versions.

Will this work with the new Outlook for Windows?

Yes. NeatStamp signatures are tested in both classic Outlook and the new Outlook for Windows. The table-based HTML approach works in all versions.

My images are showing as attachments in Outlook. Why?

This happens when images are embedded as base64 data. NeatStamp uses hosted image URLs instead, which display correctly in Outlook without appearing as attachments.

Ready to Create Your Outlook Signature?

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