The best free email marketing software in 2026 is Kit: its free plan covers up to 10,000 subscribers with unlimited emails, landing pages, and forms. Brevo’s free plan (300 emails/day, unlimited contacts) suits frequent senders; MailerLite’s (250 subscribers, 2,500 emails/month) is the most feature-complete for small lists.
- The free plans at a glance
- Kit Free: the biggest list
- Brevo Free: the most sends
- MailerLite Free: the most complete
- Mailchimp Free: the most limited
- What free plans never include
- When to leave free
- Key takeaways
- FAQs
- Conclusion
The free plans at a glance
All limits verified September 2026 from the vendors’ own pricing pages:
| Kit | Brevo | MailerLite | Mailchimp | |
|---|---|---|---|---|
| Price | $0 | $0 | $0 | $0 |
| List cap | 10,000 subscribers | Unlimited contacts | 250 subscribers | 250 contacts |
| Send cap | Unlimited emails | 300/day | 2,500/month | 500/month (250/day) |
| Automation | Limited (no sequences) | None (paid: Standard) | 3 active, 5 steps | None |
| Landing pages/forms | Unlimited | Included | 1 site, 1 page, 3 forms | Popup forms |
| Branding | Kit branding removable? No | Brevo logo | MailerLite branding | Mailchimp branding |
| Support | Email, first 30 days |
The 2026 context matters: both Mailchimp and MailerLite cut their free plans this year — Mailchimp in February (500→250 contacts, 1,000→500 sends, automation removed) and MailerLite in June (500→250 subscribers, 12,000→2,500 emails). Free tiers are shrinking across the industry, which makes the two that did not shrink — Kit and Brevo — more interesting than ever.
Kit Free: the biggest list
Kit’s free Newsletter plan is the outlier: up to 10,000 unique active subscribers, unlimited emails, unlimited landing pages and forms, list-growth reporting, and the creator recommendation network. No other free plan in email marketing holds a five-figure list.
The limits are where Kit protects its paid tiers. Automation is restricted — per September 2026 reporting, automated welcome sequences are not available on free, which is a real constraint for anyone whose list runs on autopilot. The visual automation builder, advanced reporting, subscriber scoring, and the newsletter referral system require Creator ($39/month monthly, $33 annual, per kit.com/pricing). Kit branding appears on landing pages and emails.
Best for: creators, newsletter writers, and anyone building an audience from zero who needs list size more than automation. If you send one newsletter a week to a growing list and handle onboarding manually, you may never pay Kit anything.
Brevo Free: the most sends
Brevo’s free plan gives you 300 emails per day with unlimited contacts, the drag-and-drop editor, and transactional email — confirmed on brevo.com/pricing, which leads with “Free forever, no credit card needed.” The daily cap is the whole story: it is a rate limit, not a monthly allowance. A 5,000-recipient campaign cannot go out in one day, but 300/day × 30 days is roughly 9,000 emails a month — the highest send volume of any free plan here.
What is missing: marketing automation (that starts at Standard, $18/month), A/B testing, advanced statistics, landing pages, and Brevo branding removal (a $10.80/month add-on even on paid Starter). Support is email-only.
Best for: businesses with large contact lists and modest, spread-out sending — a weekly newsletter to 2,000 people fits comfortably. Also the best free plan for transactional email (order confirmations, password resets), which most competitors gate behind paid tiers.
MailerLite Free: the most complete
MailerLite’s free plan is the smallest of the four — 250 subscribers, 2,500 emails a month — but it is the most complete product. You get the drag-and-drop editor plus the HTML and simple editors, automations (3 active workflows, 5 steps each), a website, a landing page, signup forms, and surveys. It is the real platform with training wheels, not a demo.
The June 2026 overhaul is the context: free went from 500 subscribers/12,000 emails to 250/2,500, Comfort and Power replaced the old tier names, and paid pricing starts at $12/month. The free plan now clearly serves as an on-ramp to Comfort rather than a permanent home. Branding appears on free emails, templates are limited, and API sending is restricted.
Best for: new small businesses under 250 subscribers who want the full toolkit — automations, landing pages, and a website — at zero cost while validating.
Mailchimp Free: the most limited
Mailchimp’s free plan, cut in February 2026, is 250 contacts, 500 sends a month, 250 sends a day, one audience, one seat — and no automation at all (removed by mid-2025), no scheduling, no A/B testing, no custom templates. At 500 sends a month you cannot email a full 250-contact list twice. Mailchimp’s own pricing page frames it as the way to “learn more about your customers,” which is honest: it is a trial with no expiry date, not a working plan.
There is one more Mailchimp-specific catch carried over to paid plans: subscribed, unsubscribed, and non-subscribed contacts all count toward billing, so the free plan’s 250-contact ceiling fills faster than it looks if you import an old list. The Mailchimp Review 2026 has the full breakdown.
Best for: testing Mailchimp’s interface before buying. Nothing else.
What free plans never include
Across all four platforms, free tiers consistently exclude the same things. Knowing the pattern helps you plan the upgrade before you need it:
- Real automation depth. Welcome sequences (Kit), multi-step workflows (Brevo), unlimited automations (MailerLite) — the free tier gives you a taste, not the tool.
- Branding removal. Every free plan stamps its logo on your emails. Removing it is consistently one of the first paid-tier perks.
- Priority support. Free support is email-only with slower response times, and Mailchimp cuts even that after 30 days.
- Advanced deliverability controls. Dedicated IPs, deliverability specialists, and advanced authentication reporting are paid-tier features everywhere.
- Higher sending ceilings. The free plan’s send cap is the most common growth wall — you will hit it right when your list starts working.
None of this is a scam; it is the business model. The question is only which free plan’s walls you hit last. For most people, that is Kit (list size) or Brevo (send volume).
When to leave free
Stay on free while you are validating — building the list, testing content, sending inconsistently. Upgrade when one of these is true:
- You hit a cap two months in a row. Caps are not suggestions; Mailchimp pauses sending when you exceed them, MailerLite locks sendings over 250 subscribers.
- You need the automation that is gated. A welcome sequence that converts subscribers to customers pays for the upgrade by itself. Price the cheapest tier that includes it: Brevo Standard ($18/month), MailerLite Comfort ($12/month), or Kit Creator ($39/month).
- Branding is costing you credibility. Client-facing and B2B senders usually upgrade for this reason alone.
- You are sending to customers, not subscribers. Transactional and customer email deserves paid-tier deliverability controls and support.
When you do upgrade, price the tier at your 12-month projection, not today’s list — and remember the 2026 lesson: free plans get cut. Our cheapest paid plans comparison ranks the lowest real bills once free stops being enough, and Email Marketing Pricing Explained shows how the billing models behind those prices work.
- Best free plan overall: Kit — 10,000 subscribers, unlimited emails; automation is the gated feature.
- Best free plan for senders: Brevo — 300 emails/day, unlimited contacts, transactional email included.
- Best free plan for small businesses: MailerLite — 250 subscribers but the most complete toolkit.
- Mailchimp’s free plan (250 contacts/500 sends, no automation) is only useful for testing.
- Both Mailchimp and MailerLite cut free plans in 2026 — treat free tiers as temporary, and know your upgrade tier in advance.
FAQs
What is the best completely free email marketing software?
Kit, for most people: 10,000 subscribers and unlimited emails free. If you send frequently to a smaller list, Brevo’s 300 emails/day is more useful. If you want the most features under 250 subscribers, MailerLite.
Is Mailchimp free plan still worth it in 2026?
Only for testing the interface. At 250 contacts, 500 monthly sends, and zero automation, it cannot run a real email program. Businesses outgrow it in weeks.
Why did MailerLite and Mailchimp cut their free plans?
Both companies reduced free tiers in 2026 — Mailchimp in February, MailerLite in June — as free plans became expensive to support and converted poorly. The industry trend is toward smaller free tiers that convert to paid faster.
Can I run a business on a free email plan?
You can validate on one, but building on one is risky: caps, branding, no priority support, and limited automation. More importantly, free tiers keep shrinking — plan your upgrade path from day one.
Which free plan is best for a newsletter?
Kit, by a wide margin: 10,000 subscribers, unlimited emails, landing pages, and the creator recommendation network, all free. The main limitation is automation depth.
Do free plans hurt deliverability?
Not inherently — free accounts send from the same shared IP pools as paid ones. What hurts deliverability is poor list hygiene and low engagement, which correlate with free-tier usage but are not caused by it. Authenticate your domain (SPF/DKIM/DMARC) regardless of plan.
Conclusion
Free email marketing in 2026 still exists, but the generous era is over — Mailchimp and MailerLite both cut their free tiers this year. The two free plans that survived intact are the two best: Kit, for anyone building an audience, and Brevo, for anyone sending volume. Pick the one whose walls you will hit last, use the free period to validate, and know exactly which paid tier you will land on — because the upgrade is a matter of when, not if.
All limits verified September 2026 from vendor pricing pages; free tiers change often, so re-check before you build on one.