The best tools for a free email marketing list in 2026

How to choose a free email marketing platform in 2026

What "free" actually gets you in 2026

The honest starting point: a free plan is a trial with a subscriber cap, and the cap is where platforms differ most. As of 2026, MailerLite gives you 1,000 subscribers and 12,000 emails a month with automations included, which is the most generous serious option. Brevo (formerly Sendinblue) ignores your list size entirely and instead caps you at 300 emails per day, so a 5,000-person list is fine as long as you drip rather than blast. Kit (formerly ConvertKit) allows up to 10,000 subscribers free, but holds back its visual automation builder until you pay. Mailchimp sits at 500 contacts and 1,000 sends a month, which is tight and mostly there to push you onto a paid tier fast.

The trade-off nobody mentions upfront is what the free plan removes rather than what it caps. Mailchimp puts its logo in your footer and blocks scheduling on free. Brevo's daily send limit means you cannot run a Black Friday campaign to your whole list in one shot. MailerLite requires manual account approval before you can send, which can take a day or two, so do not sign up the night before a launch.

If you are a solo creator or a small business under 1,000 contacts, MailerLite gives you the most real functionality without paying. If you have a bigger list you email infrequently, Brevo's model is the one to exploit.

Deliverability and the costs that arrive later

Free tiers usually send from a shared IP pool, and your emails share reputation with everyone else on that pool. This matters most on the budget end. Brevo and Mailchimp both have solid infrastructure, so shared sending is rarely the problem; your own list hygiene and content are. Kit and MailerLite both post strong deliverability and let you authenticate your domain (SPF, DKIM, DMARC) even on free plans, which is the single biggest thing you control. Set that up on day one regardless of platform.

The bill you should model is the one at 5,000 and 10,000 subscribers, because that is where the real spend lives. At 10,000 contacts in 2026, MailerLite runs about $73 a month, Kit about $119, Brevo scales by send volume rather than list size so it can be cheaper for infrequent senders, and Mailchimp is consistently the most expensive at scale, often $110 or more with worse limits. Buyers who pick on the free tier alone get surprised here.

Lock-in is real but overstated for these tools. Your subscriber list exports as a CSV from all of them. What does not export cleanly is your automation logic and your email templates, so a platform where you have built 15 automations is genuinely painful to leave.

Which one should you pick, and the mistakes to avoid

For most solo creators and newsletter-first people, start with MailerLite free and upgrade in place; it has the cleanest editor and the least friction. If you are a writer coming from Substack who wants paid subscriptions later, Kit is the better long-term home despite the paywalled automations, because its creator monetization and tagging model fit that workflow. Ecommerce sellers who send transactional and promotional mail from one place should look at Brevo, since it bundles SMS and has a usable free CRM.

The mistake buyers repeat is choosing on free-plan headline numbers and ignoring the migration cost of building everything on a tool they will outgrow. The second mistake is importing an old, cold list to a new free account and torching their sender reputation in week one. Warm up gradually, authenticate your domain, and treat the free plan as the place to prove the tool before you owe it anything.