I’ve been thinking about this one for my own reasons — at some point this site probably needs an email list, and picking the wrong tool now means a messy migration later. So this is the research I did for myself, and my honest take: the “best” tool here depends entirely on what you’re actually sending, not on which platform has the most features.
My Quick Take, By What You’re Actually Doing
- Building a newsletter or content business: Kit (formerly ConvertKit) or Beehiiv
- General small business, want the best value: Brevo
- Running an online store: Klaviyo (not covered in depth here — it’s built specifically for ecommerce revenue attribution, a different problem than most solo service businesses have)
- Already on Mailchimp, deciding whether to switch: read the section below before you do anything
Kit — My Pick If You’re Building a Newsletter
Kit is the platform creators keep landing on for a reason: it’s built specifically around growing and monetizing an audience through content, not around ecommerce or enterprise sales funnels. The free tier is genuinely generous — up to 10,000 subscribers before you pay anything, which is more room to grow than almost anything else on this list.
Worth knowing: Kit raised its prices by roughly 34% recently, so if you’re pricing this out, check the current numbers directly rather than trusting an older comparison — including some of what’s floating around from earlier in 2026.
Where it falls short: if visual, highly-designed email is the priority, Kit’s more function-first templates aren’t the strength here — that’s more Mailchimp’s territory.
Beehiiv — My Pick If You’re Building a Media Business, Not Just a List
Beehiiv is built for exactly what its name implies — a newsletter that behaves more like a publication than a marketing list. Its free tier covers 2,500 subscribers, smaller than Kit’s, but multiple sources I found researching this called it the more practical sweet spot once you look at the actual feature set included at that tier.
Where it fits: if the plan is genuinely publication-style content — sponsorships, a real editorial cadence — over a simple product-updates list.
Brevo — My Pick for General Value
Brevo does something the others don’t: it charges based on emails sent, not contacts stored. For a business with a large-ish list you don’t email constantly, that’s a meaningfully different — and often cheaper — way to be billed than the contact-count model everyone else uses. Pricing starts around $9/month, and the free tier includes real automation, not just basic sending.
Where it fits: a general small business that isn’t specifically a newsletter or an online store, and wants integrated AI features without paying Mailchimp-level prices for them.
Mailchimp — Read This Before You Assume It’s Still the Default
Mailchimp is the name everyone already knows, which is exactly why so many small businesses stay on it by inertia rather than an actual comparison. Here’s the thing worth knowing in 2026: Mailchimp cut its free tier down to just 250 contacts — a real, concrete example of the shrinking free tier pattern I’ve written about elsewhere on this site, not a hypothetical one.
My honest take: if you’re under that 250-contact limit and the free tier still works for you, there’s no urgent reason to move. If you’ve grown past it and you’re now on a paid tier, it’s genuinely worth running the numbers against Brevo before renewing — the gap has gotten harder to justify.
What I’d Actually Do
For a genuine one-person operation, I’d start on whichever free tier fits how you’re actually going to use it — Kit if the plan is a real newsletter I want room to grow on, Brevo if it’s a smaller, occasional list tied to a broader small business. I wouldn’t pay for anything in this category until list size or sending frequency has actually outgrown a free tier, which is the same principle I keep coming back to across every tool on this site: let a real bottleneck decide when to pay, not a feature comparison.
FAQ
What’s the best free email marketing tool for a solo business? Kit’s free tier goes up to 10,000 subscribers, the most generous on this list. Beehiiv’s smaller free tier (2,500 subscribers) is still a strong practical option if you want its publication-focused features specifically.
Is Mailchimp still worth using in 2026? If you’re under its new 250-contact free tier limit, it’s fine to stay. Past that, it’s worth comparing against Brevo specifically — the pricing gap has widened enough that inertia is often the only real reason businesses stay on Mailchimp once they’re paying for it.
Kit or Beehiiv — which should I pick for a newsletter? Kit fits better if monetization through products, courses, or paid subscriptions is the plan. Beehiiv fits better if the goal is closer to running a real publication, with sponsorships and an editorial cadence.
Do I need email marketing software, or can I start with something simpler? Starting on a free tier of any of the tools above is simpler than it sounds — the real decision only matters once your list or sending volume actually grows past what a free tier covers.
This fits alongside the customer-facing tools covered in Best AI Customer Support Tools and the full AI tool stack guide.
