Comparison
Sigmint vs HubSpot Email Signature Generator
HubSpot offers its email signature generator free as part of its suite of free marketing tools. You fill in a web form, pick from a small set of templates, and copy the result out. It's free because it introduces you to HubSpot's broader CRM and marketing products.
Try Sigmint free →The short answer
HubSpot’s generator is genuinely free, so on price alone it wins. Sigmint offers more templates (22 vs a small fixed set), generates everything client-side instead of through a marketing form, and its templates are specifically built and machine-checked for Outlook’s Word rendering engine.
Sigmint vs HubSpot Email Signature Generator at a glance
Last verified: 2026-08-25
| Sigmint | HubSpot Email Signature Generator | |
|---|---|---|
| Pricing model | Free, with an optional one-time $12 Pro unlock (lifetime — not a subscription) | Free — a lead-generation tool for HubSpot’s CRM and marketing platform |
| What you’ll pay | $0 — or $12 once, ever | $0 |
| Account required | None. There is no account to create | Form-based; designed to introduce you to HubSpot’s ecosystem |
| Branding on free tier | Small “Made with Sigmint” line on free signatures; removed with Pro | No watermark on the signature itself |
| Where your data lives | Never leaves your browser — nothing is stored on our servers | Details submitted through HubSpot’s web form |
| Outlook approach | Bulletproof table HTML with inline styles, machine-checked on every deploy | Copy-paste; output can have quirks in Outlook desktop |
| Support | Email the developer directly (hello@sigmint.app) — a human answers, not a ticket queue | Self-serve help articles for the free tool |
| Refund policy | 14-day money-back guarantee, no questions asked | n/a — free |
Pricing
Free with no payment at all, which is cheaper than Sigmint's one-time fee if cost is your only concern.
Templates
A small fixed set of templates with limited styling, versus Sigmint's four focused templates (classic, minimal, modern, compact).
Data privacy
You submit details through HubSpot's web form and it's positioned to funnel you toward HubSpot's ecosystem; Sigmint generates client-side with no marketing follow-up.
Customization
Fewer layout and styling controls than Sigmint, which offers more template and formatting choices.
Outlook rendering
Copy-paste output can have quirks in Outlook desktop, whereas Sigmint's templates are built specifically for Outlook compatibility.
When HubSpot Email Signature Generator is the better choice
- → You want a basic signature at literally zero cost and don’t mind the marketing nudges.
- → Your company already runs on HubSpot and you like staying in one ecosystem.
Support you can actually reach
Sigmint is a small tool, and that is a support feature: when you email hello@sigmint.app, the person who wrote the code reads it — there is no ticket tier, no chatbot maze, and no “business hours in another timezone”. If something doesn’t work, it gets fixed or you get your money back under the 14-day no-questions refund policy. With platform products, support quality usually depends on which plan you bought.
The verdict
HubSpot's generator is a fine free option if you want a basic signature fast and don't mind the marketing nudges. Sigmint is worth the one-time cost if you want more template control and no data feeding a marketing funnel.
Frequently asked questions
Is Sigmint better than HubSpot’s free email signature generator?
HubSpot’s generator is genuinely free, so on price alone it wins. Sigmint offers more templates (22 vs a small fixed set), generates everything client-side instead of through a marketing form, and its templates are specifically built and machine-checked for Outlook’s Word rendering engine.
Why is HubSpot’s signature generator free?
It is a lead-generation tool: you fill in your details on a HubSpot form, and the free generator introduces you to HubSpot’s paid CRM and marketing products. Sigmint is free for a different reason — the generator runs entirely in your browser and costs almost nothing to serve; the optional $12 Pro unlock funds it.
How many templates do HubSpot and Sigmint offer?
HubSpot’s generator offers a small fixed set of templates with limited styling control. Sigmint ships 22 templates — from minimal one-liners to photo and logo layouts — all rendered as Outlook-safe table HTML.
More comparisons
Want the whole field in one place? Read the full roundup — or see how we verify that every template renders in Outlook, Gmail and Apple Mail.