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Email Signature Generator
Builds a table-based HTML email signature with inline styles, the only layout desktop Outlook renders reliably.
Generators
Nothing uploaded
No sign-up
Free, unlimited
Must be a public URL. An embedded image is stripped by Outlook.
Fill in the fields and press Generate.
In short
Email Signature Generator is a free online tool on inputtesthub.com that builds a table-based HTML email signature with inline styles, the only layout desktop Outlook renders reliably. It needs no account, no download and no payment, and there is no daily usage limit. Everything is processed inside your own browser, so the data you paste is never uploaded to a server.
How to use the Email Signature Generator
- Fill in the details you want shown.
- Add a logo URL if you have one hosted publicly.
- Copy the rendered preview into Gmail, or the HTML into Outlook.
About the Email Signature Generator
The Email Signature Generator builds a table-based HTML email signature with inline styles, the only layout desktop Outlook renders reliably. It runs as plain JavaScript inside the page, which means there is no upload step, no queue and no size limit imposed by a server — the only limit is your own device.
What people use it for
- Making a signature that looks the same in Outlook and Gmail.
- Standardising signatures across a small team.
- Replacing an image-only signature that breaks when images are blocked.
Details
| Layout | Nested tables with inline styles |
|---|---|
| Why | Desktop Outlook renders mail with Microsoft Word |
| Not supported by Word | Flexbox, grid, float, max-width, background images, external CSS |
| Logo | Linked from a URL, not embedded |
| Output | HTML plus a plain-text version |
A signature should still make sense with images off, which is how a large share of recipients read mail by default. That is why the name, title and contact details here are real text rather than part of a picture — an image-only signature is invisible to those readers and to every screen reader.
Where this tool stops
Produces the signature markup. It cannot install it, and clients differ in what they keep — some strip link colours, some rewrite fonts, and a few collapse the table spacing. Send yourself a test to Outlook and Gmail before rolling it out.
Frequently asked questions
Why tables? Is that not out of date?
For the web, yes. For email, no — desktop Outlook has rendered messages with the Microsoft Word engine since 2007, and Word supports none of flexbox, grid, float, <code>max-width</code>, background images or external stylesheets. A signature laid out with modern CSS looks perfect everywhere except the one audience most likely to be corporate, where it collapses into a stack of text. Tables with inline styles are the only layout Word honours.
Should I embed the logo instead of linking it?
No. A base64-embedded image is stripped by Outlook, inflates every message you send, and raises the spam score at several filters. Host the image at a stable public URL and link to it — and expect it to be blocked until the recipient allows images, which is exactly why the signature must read properly without it.
How do I put this into Gmail?
Copy the rendered preview, not the code. Gmail's signature editor takes pasted rich content rather than HTML source, so selecting the preview and copying it is the way in. Outlook's desktop editor accepts the HTML file directly.
Are there any usage caps on the Email Signature Generator?
There is no cost and no cap. The Email Signature Generator is not a demo of a paid product, so nothing is held back or watermarked.
Can you see what I put into this utility?
No. The Email Signature Generator runs entirely in your browser using JavaScript. Your input never reaches inputtesthub.com or any third party — open your browser's Network tab while you use it and you will see no request go out.
What do people use the Email Signature Generator for most?
Typical uses: making a signature that looks the same in Outlook and Gmail. Standardising signatures across a small team. Replacing an image-only signature that breaks when images are blocked. It is built for exactly those cases rather than being a general-purpose tool with this bolted on.
When is the Email Signature Generator not the right tool?
Produces the signature markup. It cannot install it, and clients differ in what they keep — some strip link colours, some rewrite fonts, and a few collapse the table spacing. Send yourself a test to Outlook and Gmail before rolling it out. Knowing where a tool stops being trustworthy matters more than the cases where it works.
Which values should I know?
Layout is Nested tables with inline styles. Why is Desktop Outlook renders mail with Microsoft Word. Not supported by Word is Flexbox, grid, float, max-width, background images, external CSS. These are printed on the page itself, so you do not have to take them on trust.
Does the Email Signature Generator work on a phone?
Yes. The page is responsive and the utility works in Chrome, Safari, Firefox, Edge and Samsung Internet on both Android and iOS. There is no app to install and nothing to sign into.
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