Email Signature Generator

Why a professional email signature matters

A clear, consistent email signature makes it easier for people to know who you are, how to reach you, and which organization you represent. In client-facing roles, your signature can double as a mini business card, reinforcing your brand every time you send a message. Even in internal communication, a simple signature with your name, title, and team can save colleagues time when scanning long threads or revisiting older emails.

Best practice is to keep your email signature short, readable, and mobile-friendly. Avoid large images or multiple stacked logos that can push content down or break on small screens. Instead, focus on clear text, a single accent color, and just the key links: your website, LinkedIn profile, and maybe one or two other social accounts. The themes in this generator are designed to reflect those patterns while still giving you some room to customize the look.

Best HTML signature practices

Email clients vary widely in how they render HTML. Most still expect table-based layouts and inline styles instead of modern flexbox or external stylesheets. This tool generates a mostly table-based structure with simple inline CSS so that it holds up in common clients. When you paste the HTML into your signature settings, you should see a result similar to the preview and not a broken layout.

Avoid embedding large images or relying on remote CSS. Many clients block remote images by default and strip out complex markup. If you include a logo here, it is embedded as a data URL so that it travels with the signature, but keeping the dimensions modest will make your emails smaller and faster to load. It is usually better to stick to one primary logo rather than a row of badges or social icons.

Using the generated HTML in Gmail, Outlook, and Apple Mail

To use this signature in Gmail, open Settings, go to the Signatures section, create a new signature, and switch into the editor. Paste the HTML either directly or by using the "More formatting" options and the code view if available. For Outlook on the web or desktop, open the signature preferences, create a new entry, and paste the HTML into the editor. Apple Mail allows you to paste rich text signatures into the Signatures panel; you can copy the HTML, paste into a new message, tweak as needed, and then drag that content into a signature slot.

Because every email client is slightly different, you may want to send a few test emails to yourself and colleagues before rolling out a new signature widely. If you need to share a static version of the signature—for example, in onboarding docs—you can use the PNG export option. That export wraps the HTML preview inside a subtle branded frame, similar to how other tools on LifeHackToolbox use PDF signature and QR code exports.

Privacy-first and browser-only

Like the other utilities on LifeHackToolbox, the Email Signature Generator runs entirely in your browser. Your name, job title, company, and logo never leave your device. Local storage is used only to remember your last set of inputs, selected theme, and layout so that you do not have to rebuild your signature every time you visit the page. If you clear your browser data or switch devices, those settings simply reset.

This local-only approach pairs well with other business-oriented tools on the site. For example, you might use the JSON Linter & Formatter when working with API-driven email templates, or the PDF Signature Editor to sign attached documents before sending them. The goal is to give you a small set of specialized tools that respect your privacy while making day-to-day work a little smoother.