Free email automation tools sound like the same product with different logos. They are not. Every free plan sets a different trap: some cap you at 250 contacts, some cap sends per day, some strip out the automation features you signed up for. Pick the wrong one and you migrate lists inside three months.
This comparison covers the four ESPs beginners choose most often (Mailchimp, MailerLite, Brevo, and Beehiiv), what each free plan lets you build in 2026, and the point where each stops making sense. Every limit here comes from the official pricing page, verified on 2026-07-08.
Table of Contents
What You’ll Learn
What free email marketing automation gives you
Free plans get you real product access, but with three constant tradeoffs:
- Contact or subscriber cap. Usually 250 to 2,500.
- Send cap. Either a monthly ceiling or a daily one. Both hurt more than you think.
- Feature limits on the automation builder itself. Number of active flows, number of steps per flow, or entire feature families locked out.
The pattern to watch for: some ESPs give you the marketing automation feature on the free tier with a small step count. Others hide automation behind a paid upgrade entirely. Every ESP below falls into one of those two buckets.
Mailchimp free tier
Best fit: single-audience senders under 250 contacts who need a well-known name and a wide integration list.
From the Mailchimp pricing page:
- 250 contacts, 500 sends per month, 250 sends per day.
- 1 audience, 1 user seat, 1 role.
- Marketing automation flows: up to 4 flow steps.
- Email support for the first 30 days only.
- Custom-coded templates: create only. Sending requires an upgrade.
The ceiling comes fast. Once you cross 250 contacts, Mailchimp moves you to Essentials at $13 per month billed for 12 months. Every serious feature (multivariate testing, dedicated onboarding, branded templates) lives on Standard or higher.
If you plan to run a 5-step welcome sequence, Mailchimp’s free plan runs out of steps on step 5.
MailerLite free tier
Best fit: creators and small businesses under 1,000 subscribers who want the full builder on day one.
From the MailerLite pricing page:
- 250 subscribers, 2,500 monthly emails.
- 2 user seats.
- 3 active automations, 5 automation steps per flow.
- 1 website, 1 landing page, 3 active forms.
- 24/7 email and chat support for the first 14 days, then email only.
- Core features included: campaigns, visual automation builder, landing pages, digital products, forms.
MailerLite gives you the visual automation builder on the free plan, which Mailchimp does not. The step-per-flow limit is 5, one more than Mailchimp’s 4. The subscriber cap matches at 250, but the send allowance is 5x higher (2,500 vs 500).
For mailchimp vs mailerlite at the free tier, MailerLite wins on send volume and automation flexibility. Mailchimp wins on integrations and brand familiarity.
Brevo free tier
Best fit: senders with a growing list who need SMS or transactional email alongside marketing.
From the Brevo pricing page:
- Unlimited contacts (rare on any free plan).
- 300 emails per day send cap.
- Drag-and-drop email editor, templates, AI content generator.
- Advanced segmentation and forms.
- Basic reporting.
- Email support in 6 languages.
- No marketing automation on Free. Automation is Starter tier and up.
Brevo’s free plan is the outlier: no subscriber limit, but you send by the day. 300 emails per day at scale is enough for a 9,000-send month if you spread it out. It fails the moment you want to send a broadcast to a 500-person list at 9 AM.
The bigger tradeoff: Brevo hides marketing automation behind the paid upgrade. For a beginner comparing free email automation tools specifically, Brevo Free is a broadcast tool with automation locked out.
Beehiiv free tier (Launch plan)
Best fit: newsletter creators focused on content, growth, and website hosting.
From the Beehiiv pricing page:
- Up to 2,500 subscribers.
- Unlimited email sends.
- Newsletter, website, podcast, custom domains, AI website builder.
- Recommendation network, optimized deliverability.
- API access (excluding Send API).
- No email automations on Launch. Automations start at Scale ($43 per month billed monthly).
Beehiiv Launch has the highest subscriber ceiling of the four (10x Mailchimp Free, 10x MailerLite Free), and unlimited sends. It is the strongest free tier for pure newsletter volume.
The tradeoff mirrors Brevo: no automation builder on Free. A creator who wants to plan a 5-email welcome sequence on Beehiiv needs the Scale plan.
Side-by-side comparison table
Best free ESP 2026, at a glance:
| Feature | Mailchimp Free | MailerLite Free | Brevo Free | Beehiiv Launch |
|---|---|---|---|---|
| Contact cap | 250 | 250 | Unlimited | 2,500 |
| Send limit | 500/mo, 250/day | 2,500/mo | 300/day (~9k/mo) | Unlimited |
| Automation builder | Yes (4 steps) | Yes (5 steps, 3 active) | No | No |
| Landing pages | No | 1 landing page | No | Yes (website) |
| SMS support | No (paid add-on) | No | Yes (credits sold separately) | No |
| Support | Email, 30 days only | Email + chat, 14 days | Email only | AI assistant only |
| Best fit | Low-volume test | Full automation practice | Large list, low frequency | Newsletter-first creator |
Verified from each ESP’s pricing page on 2026-07-08. Refresh every six months, since pricing shifts fast.
When to upgrade: a decision tree
Free plans buy you time to prove the channel. The switch to paid should be triggered by a cost, not a want.
Upgrade Mailchimp when:
- You cross 250 contacts.
- You need a welcome flow longer than 4 steps.
- Your monthly send need passes 500.
Upgrade MailerLite when:
- You cross 1,000 subscribers.
- You need more than 3 active automations at once.
- A single flow needs more than 5 steps.
Upgrade Brevo when:
- You need marketing automation of any kind.
- Your daily send need consistently exceeds 300.
- You want to remove the Brevo footer.
Upgrade Beehiiv when:
- You need a welcome sequence, evergreen flow, or any automation.
- You want to monetize with paid subscriptions.
- You cross 2,500 subscribers.
Free email marketing for small business: matching the tool to the use case
- Local service business, list under 250: Mailchimp Free. Familiar, well-integrated with WooCommerce, Shopify, Squarespace.
- Solo creator or freelancer, list under 1,000, welcome flow needed: MailerLite Free. Full automation builder without a paycheck.
- Nonprofit or high-list, low-frequency sender: Brevo Free. The unlimited contact cap is worth more than automation for infrequent sends.
- Newsletter-first creator, content-heavy business: Beehiiv Launch. Unlimited sends and 2,500 subscriber ceiling stretch further than the other three.
Pick the ESP whose free ceiling matches your growth plan for the next 12 months. Migrations at month 3 cost more than a $10 subscription.
Migration tips: how to switch ESPs without losing your list
Every ESP loses some data in a migration. Plan for it.
- Export from the old ESP: CSV of contacts with tags, sign-up date, source, and last activity date.
- Export any automation logic: screenshot every workflow, node by node. Automation JSON exports are rare and often not portable.
- Rebuild automations first, import contacts second. If contacts arrive before workflows exist, welcome sequences fire at empty triggers.
- Suppress cold contacts before import: anyone with no open in 180 days stays out of the new list. This protects sender reputation on day one.
- Send one soft re-permission email to warm contacts within week 1 of the new ESP. A visible unsubscribe button here saves your deliverability long-term.
- Keep the old ESP live for 30 days. Some subscribers reply to old messages. You want the reply chain to survive the switch.
Do not migrate mid-launch. Do it during your slowest content week.
FAQs
What are the best free email automation tools in 2026?
MailerLite Free is the strongest for beginners who need real automation without paying. Beehiiv Launch is the strongest for newsletter creators with a growing list. Mailchimp Free works for very small lists under 250. Brevo Free suits senders with large lists and low frequency.
Is Mailchimp Free really free forever?
Yes, up to 250 contacts and 500 monthly sends. Cross either limit and Mailchimp automatically bills for overages or moves you to a paid plan.
Which free plan has the highest subscriber limit?
Brevo Free is unlimited on contacts (capped by 300 sends per day). Beehiiv Launch is highest among the fixed-cap plans at 2,500 subscribers.
Do I get email automation on every free plan?
No. Mailchimp Free and MailerLite Free include automation with step limits. Brevo Free and Beehiiv Launch require an upgrade for automation.
How often should I check pricing changes?
Every six months. Free plan limits shift, and the four ESPs above have all changed their free tiers within the last 24 months.
Key takeaways
- Free email automation tools are not interchangeable. Read the fine print on contact caps, send caps, and automation step limits.
- MailerLite Free is the best free ESP 2026 pick for beginners who want to practice real automation.
- Beehiiv Launch wins on subscriber ceiling and send volume for newsletter creators.
- Mailchimp Free is the safest choice for tiny lists needing brand recognition and integrations.
- Brevo Free is the pick for very large lists sending infrequently, but automation is locked behind the upgrade.
- Every limit shifts. Verify pricing pages every six months before recommending a tool.
Next action: pick the free plan whose 12-month ceiling matches your growth plan, sign up, and build one welcome flow this week.
