Best Free Email Signature Generators in 2026 (Compared)

TL;DR: Free email signature generators let you build a professional-looking signature in minutes without spending anything. The best free options include HubSpot (cleanest output), MySignature (most templates), and WiseStamp (best free tier). But free tools come with real limitations: watermarks, basic templates, no team management, and sometimes messy HTML. Scroll to the comparison table if you want the quick breakdown.

What Is a Free Email Signature Generator?

An email signature generator free tool is a web-based application that lets you create a professional email signature without writing HTML code. You enter your name, title, company, phone number, and social links, choose a template, and the tool generates the HTML you paste into Gmail, Outlook, or Apple Mail. A free email signature generator removes the need for design or coding skills, making professional signatures accessible to anyone with an email address.

According to the Radicati Group, the average business professional sends and receives over 120 emails per day. Every one of those emails is a branding opportunity. A polished signature turns routine communication into a consistent brand touchpoint, and free generators make that possible without a budget.

Who Benefits from Free Email Signature Generators?

Free generators work well for specific use cases. If your situation matches one of these, a free tool might be all you need.

Freelancers and solopreneurs. You need a professional look but don't have the budget or team size to justify paid software. A free generator gets you there in under five minutes.

Job seekers and students. Your email signature is often a first impression. A clean, well-formatted signature with your LinkedIn profile and portfolio link can set you apart. We covered this in detail in our guide to email signatures for students.

Small teams under five people. When signature consistency matters but centralized management doesn't, free tools can handle the basics. Each person generates their own signature using the same template.

Anyone testing the waters. If you're evaluating whether email signature management is worth investing in, free generators let you experiment without commitment.

Top Free Email Signature Generators Compared

We tested six of the most popular free email signature generators, focusing on what you actually get without paying. Here's what we found.

1. HubSpot Email Signature Generator

HubSpot offers one of the cleanest free generators available. No account required, no watermark, and the HTML output is straightforward.

What's free: Full access to the generator with six templates. You enter your details, pick a color scheme, upload a photo, and copy the generated HTML. The output works in Gmail, Outlook, and Apple Mail.

Limitations: The template selection is small. There's no way to add campaign banners, and the design options are basic. You can't save signatures or manage them across a team.

Best for: People who want a quick, clean signature with no strings attached.

2. WiseStamp Free Tier

WiseStamp has been in the email signature space for years. Their free tier gives you more features than most competitors, but it comes with a catch.

What's free: A visual editor with social icons, a photo, and a reasonable set of design options. WiseStamp also offers a browser extension that applies your signature automatically.

Limitations: Free signatures include a WiseStamp watermark ("Created by WiseStamp"). The template library is limited on the free plan, and you can't use custom HTML. Team management requires a paid plan.

Best for: Individuals who want a browser extension to auto-apply signatures.

3. MySignature

MySignature focuses on giving you enough templates to find something that fits your brand, even on the free plan.

What's free: Access to several templates with social media icons, custom colors, and a photo upload. The editor is intuitive and the preview updates in real time.

Limitations: Free signatures include MySignature branding. You're limited in the number of signatures you can create, and some templates are locked behind the paid plan. No team features on free.

Best for: Users who want variety in template design without paying.

4. Newoldstamp Free Generator

Newoldstamp positions itself as a marketing-focused signature tool. Their free generator is more limited than their paid product, but still usable.

What's free: A basic editor with a handful of templates. You can add your photo, social links, and a simple CTA button. The generated HTML is copy-paste ready.

Limitations: The free version has notable restrictions on templates and design customization. Advanced features like analytics, banners, and team management are paid-only. Branding watermark included.

Best for: Users who want a CTA button in their free signature.

5. Mail-Signatures.com

Mail-Signatures.com takes a template-first approach. You browse a gallery, pick a design, and customize it.

What's free: A library of HTML signature templates you can customize. The output is provided as raw HTML you paste into your email client.

Limitations: The customization options are more restrictive than visual editors. Some templates require a paid plan. The HTML output can be inconsistent across email clients if you pick the wrong template.

Best for: Users comfortable with HTML who want a template starting point.

6. Exclaimer Free Signature Generator

Exclaimer is primarily an enterprise product, but they offer a basic free generator as a lead-generation tool.

What's free: A simple form-based generator. Enter your details, pick from a few layout options, and download the HTML.

Limitations: Very few templates. Limited design options. No social icons on some layouts. Primarily exists to funnel users into their enterprise product.

Best for: Quick one-off signatures when you need something in under two minutes.

Free Email Signature Generator Comparison Table

Tool	Free Features	Limitations	Templates	HTML Export	Branding/Watermark
HubSpot	Full generator, no signup	6 templates, basic styling	6	Yes, clean HTML	No watermark
WiseStamp	Editor + browser extension	Limited templates, no custom HTML	10+ (limited free)	Yes	Yes, WiseStamp link
MySignature	Visual editor, social icons	Signature limit, locked templates	15+ (limited free)	Yes	Yes, MySignature link
Newoldstamp	Basic editor, CTA button	Few templates, restricted design	5-8 free	Yes	Yes, watermark
Mail-Signatures	HTML template gallery	Manual customization, inconsistent	20+ (some paid)	Yes, raw HTML	Varies by template
Exclaimer	Simple form generator	Very few templates, minimal design	3-5	Yes	No watermark

Free vs. Paid: What You're Actually Missing

Free generators handle the basics. You get a signature, it works in most email clients, and it looks reasonably professional. But there are real gaps between free and paid tools.

What Free Gets You

A single signature for one person
Basic template selection
Social media icon links
Photo or logo placement
Copy-paste HTML for installation

What Paid Unlocks

Team management. Create signatures for your entire organization from one dashboard. Update everyone's signature with a single change.
Campaign banners. Add promotional banners below signatures that you can swap out seasonally or for specific campaigns. Learn more about this in our banner templates guide.
Brand consistency. Lock down fonts, colors, and layouts so nobody goes off-brand.
Analytics. Track how many times signatures are viewed and which links get clicked.
No watermarks. Every free tool with branding inserts their logo into your professional communication. Paid plans remove it.
Centralized deployment. Push signatures to Gmail or Outlook inboxes automatically, without asking employees to copy-paste HTML.

The real difference between free and paid email signature tools is control. Free tools let you create signatures. Paid tools let you manage them, update them, and measure them across your entire team.

Key Features to Look for in Any Generator

Whether you choose free or paid, certain features separate good generators from mediocre ones.

Clean HTML Output

This is the most important and most overlooked feature. The quality of a generator's HTML output directly determines whether your signature displays correctly across email clients.

Bad HTML means broken layouts in Outlook, oversized images on mobile, or missing elements in Apple Mail. Good HTML uses table-based layouts with inline CSS, which is the only approach that works reliably across all email clients.

To check: generate a test signature, view the HTML source, and look for nested tables with inline styles. If you see div elements with CSS classes or flexbox layouts, the signature will break in Outlook.

For a deeper dive into what makes email-safe HTML, see our HTML email signature guide.

Email Client Compatibility

Test your generated signature in at least three clients before committing to it: Gmail (web), Outlook (desktop), and your mobile email app. According to Litmus, Outlook and Apple Mail account for over 55% of email opens in business environments. If your signature breaks in either of those, more than half your recipients see a broken layout.

A good generator explicitly states which email clients it supports. A great generator provides installation instructions for each client.

Template Variety and Customization

Templates should be more than color swaps. Look for generators that let you adjust layout structure (horizontal vs. vertical), toggle sections on and off, change font stacks, and add or remove social icons without breaking the design.

Browse our templates gallery to see what well-designed signature templates look like in practice.

Mobile Responsiveness

More than 40% of business emails are now opened on mobile devices. Your signature needs to look good on a 4-inch screen, not just a desktop monitor. Check whether the generator's output stacks gracefully on mobile or if it overflows the viewport.

Photo and Logo Handling

Generators handle images differently. Some embed images as base64 (which inflates email size and gets blocked by some clients). Others host images on their own servers (which means your photo disappears if the generator shuts down). The best approach is to use externally hosted images from a URL you control.

How to Evaluate Generated HTML Quality

Not all "HTML email signatures" are created equal. Here's a quick checklist to evaluate what any generator produces.

Table-based layout. Open the generated HTML and search for <table>. Email-safe signatures use tables for structure, not divs or flexbox. If the HTML relies on CSS classes or external stylesheets, it will break in most email clients.

Inline CSS. Every style should be applied directly on the element using style="...". Email clients strip <style> blocks and ignore external CSS files.

Reasonable file size. A good signature is under 30KB of HTML. Bloated signatures with unnecessary code can trigger spam filters or render slowly.

No JavaScript. Any generator that includes JavaScript in the output is producing signatures that will be stripped or blocked by every major email client.

Image dimensions specified. All <img> tags should include explicit width and height attributes. Without them, images may render at unexpected sizes, especially in Outlook.

Alt text on images. When images are blocked (which is the default in many corporate email clients), alt text ensures recipients still see context instead of broken image icons.

Email Client Compatibility: What Actually Works

Email clients are notoriously inconsistent in how they render HTML. Here's what to expect from free generator output.

Gmail (Web and Mobile)

Gmail handles most signature HTML well but strips certain CSS properties. Signatures generated by major tools typically render fine. Watch out for custom fonts (Gmail defaults to Arial/sans-serif) and complex background images.

Outlook (Desktop)

Outlook on Windows uses Microsoft Word's rendering engine, which is why so many signatures break here. Table-based layouts with inline styles are the only reliable approach. Free generators with modern CSS output will produce broken signatures in Outlook.

Apple Mail

Apple Mail is the most forgiving email client and renders most HTML correctly. If your signature looks good in Apple Mail but breaks elsewhere, the HTML probably relies on features that only Apple Mail supports.

For client-specific installation guides, see our Gmail signature guide and Outlook signature guide.

Common Limitations of Free Generators

Understanding these limitations upfront saves frustration later.

Watermarks and Branding

Most free generators add their branding to your signature. This could be a small logo, a text link, or a "Created by [Tool]" line. It's a minor annoyance for personal email, but it looks unprofessional in business communication. Removing the watermark almost always requires upgrading to a paid plan.

Limited Templates

Free tiers typically offer 5-10 templates. Paid plans unlock 30-100+. If the free templates don't match your brand aesthetic, your only option is to pay or switch tools.

No Team Features

Free generators are built for individuals. You can't create a shared template, manage multiple signatures from one account, or push updates to your team. Each person has to generate and install their own signature independently.

No Analytics

Free tools don't track anything. You won't know how many people see your signature, which links they click, or which campaigns perform best. If email signatures are part of your marketing strategy, this data matters.

Outdated or Bloated HTML

Some free generators produce HTML that was written years ago and never updated. This leads to unnecessarily large file sizes, deprecated HTML attributes, and rendering issues in modern email clients.

When to Upgrade to a Paid Solution

Free generators stop making sense at a predictable point. Here are the signals.

Your team is growing. Once you have more than five people, manually generating and installing individual signatures becomes a time sink. You need centralized management.

Brand consistency matters. If your company cares about how it's perceived in email (and it should), you need locked-down templates that prevent off-brand signatures.

Marketing wants signature space. Campaign banners in email signatures are one of the highest-impression, lowest-cost marketing channels available. Free tools don't support them.

Compliance is a factor. Industries like finance, healthcare, and legal often require specific disclaimers in email signatures. Managing this manually across a team is a compliance risk.

You're tired of watermarks. If your team's signatures all say "Created by [Free Tool]," you're advertising someone else's product in every email you send.

For a thorough breakdown of what to look for in paid tools, see our email signature software buyer's guide.

How to Get the Most from a Free Generator

If you're sticking with a free tool, these tips help you maximize what you get.

Pick HubSpot if watermarks bother you. It's the only major free generator with no branding attached.

Keep it simple. Free templates work best when you don't push their limits. Stick to name, title, company, phone, email, and one or two social links. Avoid cramming in banners, quotes, or excessive imagery.

Test in Outlook. This is where most signatures break. If it looks good in Outlook desktop, it'll look good everywhere.

Host your own images. If the generator lets you use image URLs instead of uploaded files, host your headshot and logo on your own domain or a reliable CDN. This way your images survive even if the generator changes or shuts down.

Save your HTML. Export and save the generated HTML somewhere. If the tool changes its free tier or goes offline, you'll still have your signature.

A Note on "Free Forever" Claims

Many signature generators advertise a "free forever" plan. In practice, these plans change. Features get moved behind paywalls. Template libraries shrink. Watermarks appear on previously clean output.

This isn't a criticism. It's a business reality. Free tiers exist to attract users who will eventually upgrade. Understanding this helps you plan accordingly.

If you're building a company and email signatures are part of your brand strategy, it's worth planning for a paid tool from the start. The cost per signature is typically $2-6 per user per month, which is a rounding error in most marketing budgets.

Frequently Asked Questions

What is the best free email signature generator?

HubSpot's free email signature generator is the best option for most people. It produces clean HTML without watermarks, requires no signup, and works across Gmail, Outlook, and Apple Mail. If you need more template variety, MySignature offers a larger selection on its free tier, though it includes branding on generated signatures. The best choice depends on whether watermark-free output or template variety matters more to you.

Are free email signature generators safe to use?

Yes, reputable free generators like HubSpot, WiseStamp, and MySignature are safe. They generate static HTML that contains no executable code. However, be cautious with lesser-known tools. Check the generated HTML for any suspicious scripts or tracking pixels you didn't request. Also review the tool's privacy policy to understand how they handle the personal information you enter, including your name, phone number, and email address.

Can I use a free email signature generator for my whole team?

You can, but it creates management headaches. Each team member would need to generate their own signature individually, and there's no way to push updates centrally. If someone misspells the company name or uses the wrong colors, you won't know until a client points it out. For teams over five people, a centralized signature management tool saves significant time and protects brand consistency.

Do free email signature generators work with Gmail and Outlook?

Most free generators produce HTML that works in both Gmail and Outlook, but the results vary. Gmail handles modern HTML well, while Outlook on Windows uses a limited rendering engine that breaks signatures with CSS floats, flexbox, or complex styling. Always generate a test signature and install it in both clients before committing to a tool. Check our Gmail guide and Outlook guide for installation steps.

How do I remove the watermark from a free email signature?

Most free generators include watermarks that can only be removed by upgrading to a paid plan. HubSpot is the notable exception, as it offers watermark-free signatures at no cost. If you're using another tool, you could manually edit the HTML to remove the watermark link, but this may violate the tool's terms of service. A cleaner approach is to switch to a generator without watermarks or invest in a paid solution like Signkit that provides clean, branded signatures for your entire team.

Key Takeaways

Start with HubSpot's free generator if you need a single watermark-free signature with clean HTML output.
Test every generated signature in Outlook desktop before rolling it out, since Outlook's rendering engine breaks signatures that use modern CSS.
Upgrade to paid tools when your team exceeds five people, because manual signature management becomes unsustainable and creates brand inconsistency.
Check the HTML source for table-based layouts and inline CSS to confirm the generator produces email-client-compatible code.
Treat free generators as a starting point, not a long-term solution, because watermarks, limited templates, and zero team management will hold you back as you grow.

Ready for More Than a Free Generator?

Free email signature generators are a solid starting point. But when your team grows, your brand standards tighten, or marketing wants to leverage signature real estate for campaigns, you'll need something purpose-built.

Signkit gives you centralized signature management, auto-brand detection from your website, campaign banners, click tracking, and clean HTML output that works in every email client. No watermarks. No per-signature limits on the free plan.

Try Signkit free and see the difference professional signature management makes.