Free newsletter platforms: the three business models behind a free tier, what each one withholds, and the limits as published on 20 October 2026

Every free newsletter platform is free for one of three reasons. An email service provider gives you a free tier because it is confident your list will outgrow it, so the cap is on subscribers or sends. A creator platform charges nothing to publish because it earns a share of the money you eventually make from readers, so the cap is on your revenue rather than your list. Open source software is free because you run it yourself, so you pay a server and a sending provider instead. Nothing here is a trick, but the three models fail in different places, and picking the wrong one means moving a list you have spent two years building.

The three models

	Email service provider free tier	Creator platform	Open source, self hosted
Why it is free	You are expected to grow into a paid plan	It earns from your paid subscriptions or from advertising	The software is free and you supply the infrastructure
The cap	Subscribers, monthly sends, or both	Usually none on list size	What your server and sending provider allow
What you pay later	A monthly fee that steps up with the list	A share of subscription revenue, or your audience seeing ads	Hosting, a sending provider, and your own time
Suits	A business newsletter that also needs forms and automation	A writer who intends to charge readers	A team with a developer and a reason to own the stack
The risk to check	The price at five times your current list	The export, and who owns the reader relationship	Deliverability, which becomes your job entirely

The free tiers, as each vendor publishes them

Every figure below was read from the vendor's own pricing page on 20 October 2026. These change, so treat the page as the source and this table as the shortlist.

Platform	Free tier as published	Held back for paid plans
Kit	Free up to 10,000 subscribers	Unlimited visual automations, subject line testing, and removing Kit branding
beehiiv	Free up to 2,500 subscribers, unlimited email sends, one team seat	Removing beehiiv branding, automations, and the better terms on paid subscriptions
MailerLite	Free up to 250 subscribers, two seats, 2,500 emails a month	Sending is locked once the free subscriber limit is passed
Mailchimp	Free plan with a 1,000 monthly send limit and a 500 daily limit	Most templates, with access on the free plan limited to certain pre-built ones
Brevo	Free plan that holds your contacts with sending up to 300 emails a day	Higher daily sending, and the marketing automation tiers
Buttondown	Free up to 100 subscribers	Everything above that list size, on paid tiers starting at nine dollars a month
Substack	No charge to publish or send	Its money comes as a published share of paid subscription revenue, so read that percentage on its own pricing page before you charge readers
Ghost	The software is open source and free to self host	You pay for hosting, and bulk newsletter sending is configured through a separate mail provider you pay for. Ghost's own managed hosting is the paid alternative

Notice that the caps are not comparable with each other. Ten thousand subscribers on one platform and three hundred emails a day on another are limits on different things, and which one binds first depends entirely on your sending pattern. A monthly newsletter to 2,000 people is 2,000 emails a month, which fits a subscriber cap of 2,500 and breaks a send cap of 1,000.

Work out which cap binds first

• Count your list today, and the list you expect in a year. Growth rate matters more than the current number, because a cap you pass in month four was never free.
• Multiply the list by sends a month. One send to 1,500 subscribers is 1,500 emails. A weekly to the same list is 6,000. That figure, not the list size, is what a send based limit measures.
• Add the automated email. A welcome sequence of three messages to every new subscriber is part of the monthly total, and it is the part people forget when they compare caps.
• Check whether unsubscribed contacts still count. On contact based pricing this decides your bill, and the answer belongs in writing before you sign anything.

What a free tier holds back, and which ones matter

• The platform's own branding in your footer. Cosmetic for a personal newsletter, and a real problem for a business newsletter sent to buyers.
• Sending domain authentication. This is the one to check first. A platform that will not let you authenticate your own domain on the free tier is a platform your mail arrives from on somebody else's reputation, and the published mailbox provider rules now expect your own records.
• Automation with branches. A welcome sequence that splits on behaviour is usually the first paid feature, and it is also the feature that earns the most on a small list.
• Export of per contact data. Ask what comes out as a CSV: addresses, subscribed status, consent date and source, and per send engagement. An export that gives you addresses alone leaves the consent record behind.
• Support. Free tiers are usually documentation and a community forum. For a business that sends on a schedule, time how long a real answer takes during the trial.
• A custom domain for the archive. On creator platforms the public archive lives on their domain by default, so the pages you write build their search presence rather than yours until you move it.

The two costs that decide whether free was free

The migration. Moving a list means carrying across the subscribed status, the consent date and source, and the suppression list, then rebuilding every form. The suppression list is the one that costs money if it is left behind, because the first send on the new platform reaches people who unsubscribed last year. Export both lists before you need them, and keep a copy you hold yourself.

The audience relationship. On a creator platform the reader may be a subscriber to the platform as well as to you, with recommendation and discovery features that introduce them to other newsletters. That is a genuine growth channel and it is also a shared relationship, so decide knowingly rather than discover it later.

A short way to choose

• A business newsletter to customers, under a few hundred people. Any free tier that lets you authenticate your own sending domain. Choose in an hour and spend the saved time on the welcome sequence.
• A business newsletter that will pass a thousand people this year. Price the paid tier at your expected list before you start, because the migration is the expensive part and you can skip it entirely.
• A newsletter you intend to charge for. A creator platform, with the revenue share read off its pricing page and compared against a paid plan plus a payments provider.
• A publication with a developer and an existing site. Self hosted open source, with the sending provider chosen and authenticated first.
• A shop sending basket and post purchase flows. Not a newsletter tool at all. That is an ecommerce platform decision, and the four kinds of sender are compared in email marketing platforms for a small business.

Once the platform is picked, the structure of the issue is the thing that decides whether anybody reads it, and the blocks plus the footer lines United States law requires are set out in the email newsletter template. The authentication, list health and reporting work that sits underneath any platform is in email marketing deliverability.

What people ask about free newsletter tools

Is a free plan good enough for a real business newsletter?

Yes, for the first few hundred subscribers, as long as you can authenticate your own sending domain and export your contacts with their consent records. Those two things keep your options open; everything else on a free tier is a convenience.

Which free platform allows the most subscribers?

Of the tiers in the table above, Kit publishes the highest subscriber ceiling at 10,000, and the creator platforms place no list cap at all because they earn from paid subscriptions instead. Check both pages before deciding, since this is the number vendors move most often.

Will a free plan hurt deliverability?

What decides inbox placement is your own authentication, your list quality and your complaint rate. A free tier that lets you set up SPF, DKIM and DMARC for your domain puts you on the same footing as a paid one; a tier that sends only from the platform's domain puts you on shared reputation.

Can I move my list later without losing subscribers?

Yes, and it is a day of work done in a strict order: export contacts with status and consent data, import the suppression list to the new platform first, send to your most engaged segment for the first few sends, then rebuild the forms and retire the old ones.

Do free plans put advertising in my emails?

Most add their own branding to the footer rather than third party advertising. Some creator platforms run an advertising network you can opt into for revenue. Read the footer of an email the platform sends you before you send one to customers.

What about the platform's own recommendation features?

They grow lists quickly and they work in both directions, which means your readers are shown other publications too. Worth using deliberately, with your own site and form as the place the list ultimately lives.

The part of your audience that never sees the email

A newsletter reaches the people who already found you once. The people deciding between you and two competitors right now are often asking an assistant instead, in words like which tool should I use or who is good at this, and getting back a short list of names with a sentence each. Those answers are built from what has been published about each company, so no amount of careful sending reaches them. It is worth reading the answer your own category currently returns, with your name left out of the question. AI Knows Us asks those buying questions across the main assistants and records who gets named and what the answers were built from.