Email is still the best channel most small businesses underuse. Social media reach decays, ad costs go up, and SEO takes time. Your email list is the one audience you actually own.
But picking an email tool is confusing. There are dozens of options, the pricing pages are built to obscure what you'll actually pay, and most comparison articles are just affiliate link roundups that don't tell you anything useful.
So here's a practical breakdown of five tools that are worth considering in 2026: what they're actually good at, who they're for, and what you'll pay.
What to Actually Look For
Before the list: most small businesses don't need half the features these platforms advertise. What you actually need is reliable email delivery, a signup form you can embed on your site, some basic automation for welcome sequences, and pricing that doesn't crush you before you have revenue.
Everything beyond that is nice-to-have. Keep that in mind as you read.
1. Brevo: Best Free Tier Overall
Brevo (formerly Sendinblue) has the most generous free plan in this category, and it's not particularly close.
Free plan: unlimited contacts, 300 emails per day, basic automation, landing pages, transactional emails. No credit card required. The 300/day limit means you can send to your full list, you just have to spread it across days if your list is large. For a list under 3,000, you can reach everyone in 10 days, which is fine for monthly newsletters.
The product has improved a lot in the past two years. The drag-and-drop editor is clean, the automation builder handles welcome sequences and drip campaigns well, and deliverability is solid. They've also added SMS marketing, which none of the other tools on this list include at a comparable price point.
Paid plans start at $25/month for 20,000 emails per month to unlimited contacts. Compare that to Mailchimp where you pay per contact: at 10,000 contacts, Mailchimp costs $100+/month, while Brevo's equivalent plan is around $35/month. The savings compound fast.
The honest limitation is the interface. It's not as polished as Mailchimp, and some of the advanced segmentation features are clunkier than they should be. But for a small business that needs reliable email without a big monthly bill, Brevo is the easiest recommendation.
Who it's for: Small businesses that want the best free tier available, businesses with larger contact lists who don't need to email everyone at once, and anyone who wants SMS + email in one tool.
Pricing:
- Free: unlimited contacts, 300 emails/day
- Starter: $25/month for 20k emails/month
- Business: $65/month for 20k emails/month (adds A/B testing and advanced reporting)
2. ConvertKit (Kit): Best for Creators and Indie Developers
ConvertKit is built for a specific kind of business: content creators, bloggers, newsletter writers, indie developers selling digital products. If that's you, it's probably the best tool on this list.
The thing that makes ConvertKit different is the tagging model. Instead of organizing subscribers into lists, everyone lives in one list and you tag them based on behavior: what they downloaded, what links they clicked, what they bought. You can send targeted emails to any combination of tags without duplicating contacts or paying twice.
For a developer who has subscribers interested in different topics, or a blogger who sells both a course and consulting, this is significantly more powerful than the list-based model most tools use.
The free plan covers up to 1,000 subscribers with unlimited sends. That's genuinely useful, not a crippled trial. The automations on the free plan are limited, but you can send broadcasts and run basic sequences.
I wrote a more detailed comparison of ConvertKit vs Mailchimp if you want a deeper look at those two specifically.
Who it's for: Bloggers, newsletter creators, indie developers, course creators, anyone building an audience to sell digital products.
Pricing:
- Free: up to 1,000 subscribers, unlimited sends
- Creator: $25/month (1k subs), $66/month (5k subs), $100/month (10k subs)
- Creator Pro: $50/month (1k subs) and up
3. Mailchimp: Most Well-Known, Best for E-commerce
Mailchimp is the most recognized name in email marketing. That recognition comes with real advantages: more third-party integrations than anyone else, the most tutorials and help resources available, and native e-commerce features that are genuinely good.
The free plan gives you 500 contacts and 1,000 email sends per month. That's enough to get started, but you'll hit the limit faster than expected once your list grows. Once you cross 500 contacts, you're on a paid plan regardless of how much you actually send.
Where Mailchimp earns its reputation is with e-commerce businesses. The Shopify and WooCommerce integrations are tight: you get abandoned cart emails, product recommendation blocks, purchase-based segmentation, and revenue tracking inside the email dashboard. If you're running an online store, these features pay for themselves.
The interface is busy. There are a lot of features, and finding the one you need isn't always intuitive. For someone just learning email marketing, the learning curve is steeper than Brevo or MailerLite.
At scale, Mailchimp is more expensive than most alternatives. At 10,000 contacts on the Standard plan, you're paying $100+ per month. Brevo handles the same list size for a fraction of that cost if you don't need all the e-commerce integrations.
Who it's for: E-commerce businesses with Shopify or WooCommerce stores, teams that need extensive integrations, businesses that want the most widely supported tool.
Pricing:
- Free: 500 contacts, 1,000 sends/month
- Essentials: from $13/month (500 contacts)
- Standard: from $20/month (500 contacts), adds A/B testing and better analytics
- Premium: from $350/month for large lists
4. Klaviyo: Best for E-commerce (If You're Serious About It)
Klaviyo is built specifically for e-commerce, and it does that job better than anyone else on this list. The Shopify integration is deep, the pre-built flows (abandoned cart, welcome series, post-purchase, win-back) are excellent, and the revenue attribution shows you exactly what each email earned.
It's not cheap. The free plan is limited to 250 contacts and 500 emails/month. Paid plans start at $45/month for 1,001-1,500 contacts and go up quickly. At 5,000 contacts you're looking at $100/month or more.
But if you're running an e-commerce store and your email list is actively driving purchases, Klaviyo's automation capabilities make that cost easy to justify. Most Klaviyo users see it pay for itself within the first month from abandoned cart recovery alone.
The honest caveat: Klaviyo is overkill if you're not running a real e-commerce operation. If you're a service business or content creator, you're paying for features you won't use.
Who it's for: E-commerce businesses that want the most powerful email + SMS automation available, Shopify stores serious about email as a revenue channel.
Pricing:
- Free: 250 contacts, 500 emails/month
- Email: $45/month (1,001-1,500 contacts), scales up with list size
- Email + SMS: $60/month starting
5. MailerLite: Best Budget Paid Option
MailerLite doesn't get talked about as much as the others, but it's a genuinely good tool at a price that undercuts everyone.
The free plan is solid: up to 1,000 subscribers, 12,000 emails/month, landing pages, and basic automation. That's comparable to ConvertKit's free tier and significantly better than Mailchimp's.
The paid plan starts at $9/month for up to 500 subscribers and scales reasonably. At 5,000 subscribers, you're paying around $39/month. At 10,000 subscribers, around $73/month. That's consistently cheaper than Mailchimp and comparable to ConvertKit.
The interface is clean and easier to navigate than Mailchimp. The automation builder handles common sequences well. It doesn't have the creator-specific features ConvertKit has or the e-commerce depth of Klaviyo, but for a general small business newsletter, it does the job cleanly.
If you're beyond the free tier threshold and want the cheapest paid plan that doesn't feel like a compromise, MailerLite is the answer.
Who it's for: Small businesses that want a clean, affordable paid tool without the complexity of Mailchimp or the niche focus of ConvertKit.
Pricing:
- Free: 1,000 subscribers, 12,000 emails/month
- Growing Business: from $9/month (500 subs) to $73/month (10k subs)
- Advanced: from $19/month, adds more automation and priority support
Quick Comparison Table
| Tool | Free Plan | Starting Paid Price | Best For |
|---|---|---|---|
| Brevo | Unlimited contacts, 300 emails/day | $25/month | Best free tier, small businesses |
| ConvertKit | 1,000 subs, unlimited sends | $25/month | Creators, bloggers, developers |
| Mailchimp | 500 contacts, 1k sends/month | $13/month | E-commerce, integrations |
| Klaviyo | 250 contacts, 500 sends/month | $45/month | Serious e-commerce stores |
| MailerLite | 1,000 subs, 12k sends/month | $9/month | Budget-conscious small businesses |
How to Actually Choose
The decision is simpler than it looks once you know your situation.
Running an e-commerce store? Use Klaviyo if you're serious about it, Mailchimp if you want cheaper and simpler. Building a content-based business, a blog, or selling digital products? Use ConvertKit. Read the full ConvertKit vs Mailchimp breakdown if you're deciding between those two.
Starting a newsletter from scratch? Check out the Beehiiv vs Substack comparison if a newsletter platform rather than a traditional email tool fits better.
Just need to send emails to customers and want the best free option available? Start with Brevo. The free tier handles most small business needs without any monthly cost, and you can upgrade when your list grows past what 300 daily sends covers.
And if you're already paying for Mailchimp and finding it expensive, MailerLite is the cleanest migration. The feature set is comparable, the interface is cleaner, and you'll pay less for the same number of contacts.
The Practical Recommendation
For a small business starting fresh in 2026: start with Brevo's free plan. It's genuinely the most generous free tier available, and most small businesses can operate entirely on it for months before needing to upgrade.
If you're building an audience as a creator or developer, ConvertKit's free tier at 1,000 subscribers is the better fit. The tagging model is worth starting with from the beginning.
Only move to paid when you're actually seeing returns from email. Pick the tool that fits your use case, not the one with the most features or the biggest brand name.