Quick take: Mailchimp is the name everyone recognizes, and it's exactly the tool to skip in 2026 — its free plan has been quietly shrunk to just 250 contacts and 500 sends a month, among the stingiest in the category. Brevo, Kit, and Sender all beat it badly on real free-tier value, but each makes a different trade-off: Brevo caps by send volume, not contacts; Kit caps by subscriber count with unlimited sends; Sender is the most balanced across both.
Who This Is For
This is for a solopreneur, small business, or new newsletter that needs real email marketing — automation, forms, decent deliverability — without a monthly bill yet. If you already know you're outgrowing free tiers, see our email marketing comparisons for what paid tiers actually cost.
Free plan limits in this category change often — several platforms reduced their free tiers within the past year. Always confirm current numbers on each vendor's official pricing page before choosing.
What Works Well
Brevo's model — unlimited contacts, capped by daily send volume — is genuinely the best fit if you have a large list but email infrequently (a monthly newsletter to 20,000 people costs nothing, while a similar list would need a paid plan almost everywhere else). Kit's 10,000-subscriber free ceiling with unlimited sends is unmatched for creators and newsletter writers who send often but don't need complex automation. Sender earns its spot by not forcing the contacts-vs-sends trade-off as hard as the others — real multi-step automation, decent volume on both dimensions, at zero cost.
Where It Falls Short
Brevo's 300/day sending cap means you genuinely cannot blast your entire list at once if it's large — a 5,000-contact list takes over two weeks to fully reach on the free tier, which rules it out for any time-sensitive one-time campaign. Kit limits you to a single automation sequence, so anything beyond a basic welcome flow needs a paid plan. Every tool on this list adds its own branding to your emails on the free tier — removing it always requires upgrading. Mailchimp's decline is worth noting specifically: contacts and sends have both been cut repeatedly over the past few years, and its free tier is no longer a serious contender against any competitor here.
Alternatives Worth Considering
If you're specifically running e-commerce and need cart-recovery and product-based automation, Omnisend's free tier is a better starting point than any general-purpose tool here. If your list is genuinely large (100,000+) and you send frequently rather than occasionally, none of these free tiers will hold — that's the point where a usage-based paid plan becomes worth comparing directly.
Final Verdict
If your list is big but you email rarely, Brevo's unlimited contacts make it the easy pick. If you're a creator or newsletter writer sending regularly, Kit's 10,000-subscriber ceiling means you likely won't think about upgrading for a long time. If you want the most balanced free tier without a heavy trade-off in either direction, Sender is the strongest all-rounder. Skip Mailchimp's free plan entirely in 2026 — it's not competitive against any of the above.
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