Best Free Email Marketing Software: Free Plans Compared on Contacts, Sends and Branding

A free email marketing plan works when your list is small, your send frequency is modest, and you can live with the trade-offs the vendor chose. The best free email marketing software for you is the one whose free tier matches your actual contact count and monthly send volume, includes the automation you need without a paid upgrade, and doesn't put someone else's logo on your emails. In practice, three criteria decide most of these choices: the free send cap against your real monthly volume, the automation allowance, and whether branding on your emails is acceptable.

Below is a comparison of five platforms with genuinely usable free tiers, what each is best for, and where each one runs out.

What a free email marketing plan actually has to do

Free plans are not smaller versions of paid tools. They are a different product with hard edges, and the edges are usually in the same five places: contact limit, monthly send limit, automation allowance, branding on your emails, and what the first paid tier unlocks.

A generous contact limit with a tight send cap breaks the moment you send weekly. A generous send cap with a low contact limit breaks the moment your list grows. Automation on the free tier matters if you run a welcome sequence, because a free plan that only sends one-off campaigns forces you to do manually what the paid tier does automatically.

Branding is the quiet one. If your emails carry another company's logo in the footer, that's a real cost, and it's worth pricing the first paid step before you commit months of work to a free tier.

If you are still deciding where to send from, see the Best Email Marketing Platforms compared side by side, with prices checked daily on each provider's own pricing page.

How we chose and what we compared

We included only platforms with a genuinely usable free tier, not a time-limited trial. Each free plan below was checked against the vendor's own pricing page on 2026-10-25. Where a number wasn't published in a form we could verify, we say so and point you to the pricing page rather than guessing.

The criteria, in the order they usually matter:

• Contacts included on the free tier
• Emails per month on the free tier
• Automation available without paying
• Branding on free-plan emails
• Users, forms and landing pages allowed
• Reporting retention, which is easy to overlook until you need last quarter's numbers
• The first paid step: its price and its shape (per contact, per send, or flat)

Prices and limits change often. Confirm anything you're about to build on at the vendor's official pricing page before you commit.

Free email marketing plans at a glance

All figures verified 2026-10-25 against mailerflow.ai pricing, mailerlite.com/pricing, mailchimp.com/pricing/marketing, brevo.com/pricing and emailoctopus.com/pricing.

For the rows marked "not published in our verified set," the figures exist on the vendor's pricing page but weren't in a form we could confirm on 2026-10-25 — check the official page for those cells.

Mailerflow

Best for: teams who want a free tier that maps cleanly onto a paid one, and who care about import hygiene and consent records from day one.

The Free plan includes 2,500 contacts and 10,000 emails a month. Paid plans start from $14.90/month and include unlimited emails, so the upgrade trigger is contacts and seats rather than send volume. That's a meaningfully different shape from free tiers that cap both.

Where it earns its place for teams switching platforms: CSV import runs duplicate and validity checks, and custom fields and tags come along with it. Embeddable signup forms support double opt-in with consent records, which matters if you need to show how someone opted in. The AI email builder takes a description and returns a complete responsive design plus subject lines and preview text. On eligible paid plans, migration help covers contacts, suppression lists, templates and core automations at no cost.

Limitations: the free plan carries Mailerflow branding, and is capped at 1 sending domain, 1 user, 3 active automations and 100 AI actions per month. If you need a second sending domain or a teammate in the account, that's a paid step.

MailerLite

Best for: small teams that want a free entry point and a flat paid structure later.

MailerLite offers a free plan with no credit card required. The structure above it is unusually simple: every paid plan gets the full feature set, and you only pay more for a bigger list or more sending. Yearly billing saves 10%.

The Power plan is where the ceilings come off — unlimited monthly emails, unlimited automations, unlimited forms, sites, campaigns, templates, integrations and user seats, full MCP and API access, logo removal, and live chat plus email support. The Comfort plan is described as perfect for sending regular newsletters and running automations, and includes email support, 50 automations, 10 forms, 10 sites and 5 digital products.

Limitations: the free plan's contact and send limits aren't in our verified set, so check mailerlite.com/pricing before you plan around them. If you're comparing on free-tier capacity alone, that's the number to go find.

Mailchimp

Best for: teams already inside the Mailchimp ecosystem, or who want a well-known brand and a free plan to start on.

Mailchimp offers a free plan, and customers can cancel or downgrade to the basic Free plan at any time — useful if you want to test a paid tier without a long commitment. The Standard plan has a 14-day trial, allows up to 6,000 emails each month, and includes generative AI features, enhanced automations, custom-coded email templates and customizable popup forms. Businesses with 10,000+ contacts can save 15% on their first 12 months, and custom plans exist for managing more contacts.

Limitations: the free plan's contact and send limits aren't in our verified set — check mailchimp.com/pricing/marketing. Mailchimp's free plan and paid tiers differ in scope; if you need automation and AI features, compare the paid tiers rather than the free ones. Our broader email marketing software comparison covers that ground.

Brevo

Best for: individuals and solopreneurs building an online presence who may later want multi-channel marketing.

Brevo offers a free forever plan with no credit card needed, positioned for individuals and solopreneurs building an online presence. The Starter plan is aimed at single users starting with email and multi-channel marketing, and includes from 5,000 emails per month, a drag & drop editor, templates, an AI content generator, MCP for ChatGPT & Claude, advanced segmentation, basic reporting and analytics, and email support. Support is available in 6 languages. The Standard plan is for small businesses ready to automate and test, and adds marketing automation with unlimited multi-step automated workflows.

Limitations: the free plan's send volume and contact cap aren't in our verified set — check brevo.com/pricing. SMS credit is sold separately, so multi-channel isn't free even when email is.

EmailOctopus

Best for: budget-conscious senders who want predictable, low-cost sending and are fine with a simpler free tier.

The free Starter plan supports up to 2,500 subscribers and 10,000 emails per month. It includes EmailOctopus branding on emails, reports available for 30 days, 1 landing page, 1 form and access for 1 user. The Pro plan costs $9 per month billed yearly and includes 10,000 emails per month, full control over email design, reports available forever, unlimited landing pages and forms, and unlimited users. Yearly billing saves 10%, nonprofits get a 20% lifetime discount, and custom plans are available above 500,000 subscribers.

Limitations: branding on free emails, a single user, 30-day report retention, and no free trial — the free plan is the entry point instead.

How to choose for your situation

1. Do the send arithmetic. Take your contact count, multiply by campaigns per month, and compare against the free send cap. A 1,800-contact list sending four campaigns a month is roughly 7,200 emails — comfortably inside a 10,000/month tier. Add a fifth campaign and you're at 9,000, which still fits but leaves no room for a re-send or a triggered sequence. Send volume is a common reason teams outgrow a free plan they thought was generous.

2. Check the automation cap, not just the contact cap. A free plan can allow 10,000 sends and still limit you to a handful of active automations. If your welcome sequence, abandoned-cart flow and re-engagement flow are three separate automations, count them.

3. Price the first paid step before you commit. If branding on your emails is unacceptable, the free tier is a trial, not a destination. Find out what removing it costs and whether that tier includes unlimited sends or caps them again.

4. If you're migrating, ask two questions. Does import include duplicate and validity checks, and do suppression lists carry over? A list imported without suppression history is a deliverability problem waiting to happen. The platform switching checklist walks through the full sequence.

5. If consent records matter, check where data lives. For EU-based teams or anyone handling consent-sensitive data, hosting location and what the platform logs at opt-in are worth confirming before you import anything.

What usually forces the upgrade

• Crossing the contact cap. Check whether the next tier is priced per contact or flat.
• Crossing the send cap. Check whether the paid tier includes unlimited sends or just a bigger cap.
• Needing more than one user. Seat limits are often the real constraint on small teams.
• Removing branding. Confirm the cheapest tier that removes it.
• Automation beyond the free allowance. Count active automations, not total sends.
• Longer report retention. If you report quarterly, 30-day retention is a problem.
• A second sending domain. Relevant if you send transactional and marketing mail separately.

One structural difference worth noting: on Mailerflow, paid plans include unlimited emails, so the upgrade trigger is contacts and seats rather than send volume. On free tiers built around a monthly send cap, the trigger is usually volume. Knowing which shape you're on tells you what to watch.

Signs It's Time to Change Your Email Marketing Software

Frequently asked questions

Is a free email marketing plan enough to run a business?

It depends on two numbers: your list size and your send frequency. Multiply contacts by campaigns per month. If the result sits well under the free send cap with room to spare, a free plan can carry you for a while. As a rough rule, leave headroom of a campaign or two rather than planning right up to the cap.

Can I send marketing emails for free forever?

Some platforms offer free plans with no end date, but they're capped. The usual trade-offs are send volume, contact count, branding on your emails, and automation limits. Free forever means free within those limits, not unlimited.

What happens to my contacts if I downgrade?

It varies by platform, so check the vendor's own documentation before you downgrade. Mailchimp, for example, states that customers can cancel or downgrade to the basic Free plan at any time — but what happens to contacts above the free limit is a detail worth confirming with support.

Do free plans include automation?

Sometimes, with a cap. Mailerflow's Free plan includes 3 active automations. Others differ, and some reserve automation for paid tiers entirely. Check each pricing page rather than assuming.

Is a free trial the same as a free plan?

No. A trial expires; a free plan doesn't. EmailOctopus, for instance, does not offer a free trial but does have a free Starter plan, verified 2026-10-25. If you need time to evaluate a paid tier, a trial is what you want; if you need somewhere to run a small list indefinitely, a free plan is.

How do I move my list to a new platform?

Export a CSV from your current tool and import it into the new one. Look for import that runs duplicate and validity checks rather than blindly loading rows — and ask whether suppression lists transfer, because they should. Mailerflow offers free migration help covering contacts, suppression lists, templates and core automations on eligible paid plans. You can see what's included on the features page.

See how Mailerflow compares for your list: unlimited emails on paid plans and AI that builds campaigns and automations. Start free.