The 5 Best Email Marketing Platforms in 2026 (Tested & Compared)

Brevo is the best all-in-one platform (email, SMS, WhatsApp, and CRM) and bills by emails sent, not contacts stored. Moosend is the best budget pick, giving you advanced automation and unlimited sends from about $7/month. Mailchimp is the most beginner-friendly, MailerLite has the most generous free plan, and Kit (formerly ConvertKit) is built for creators. Pick by how you send, not by brand name.

Introduction

Most “best email tool” lists just restate each platform’s marketing page. This one does the part those lists skip: it explains why these tools cost wildly different amounts for the same list, shows which billing model wins for your sending pattern, and gives you a decision rule you can actually act on. Every figure was checked against the providers’ own pricing pages and independent review data at the time of writing.

First, the thing that actually decides your bill: contact-based vs send-based pricing

Email platforms charge in one of two ways, and this single difference matters more than any feature list:

• Contact-based (Mailchimp, MailerLite, Kit, Moosend): you pay for how many subscribers you store, and usually send unlimited (or very high) emails to them. Cost rises as your list grows, even if you rarely email it.

• Send-based (Brevo): you pay for how many emails you actually send, and can store a large list cheaply. Cost rises with sending frequency, not list size.

The practical rule: if you hold a big list but email it infrequently (say, a 50,000-person list you mail once or twice a month), send-based billing is far cheaper. If you email a smaller list constantly (daily sequences, heavy ecommerce flows), contact-based billing is usually more predictable and often cheaper. Work out your own ratio of list size to monthly sends before you compare sticker prices — it flips which tool is “cheapest.”

A worked example

Take a 20,000-contact list. Mail it twice a month and you send 40,000 emails — a send-based plan prices that on 40k sends while storing all 20k contacts cheaply. Now mail that same list a daily welcome sequence plus weekly campaigns and you might send 300,000+ emails a month — at which point a contact-based plan that includes unlimited sends to 20k contacts wins. Same list, opposite answer, purely because of send frequency. This is why a roundup that just lists “starts at $9” is useless without your usage.

The 5 platforms at a glance

1. Brevo — Best all-in-one platform

Brevo (formerly Sendinblue) is a publicly traded, Paris-based platform used by 600,000+ businesses, bundling email, SMS, WhatsApp, automation, transactional email, and a built-in CRM. Its defining trait is send-based pricing, which makes it unusually cheap if you store a large list and email it infrequently. It rates roughly 4.5 on G2 and 4.4 on Trustpilot at the time of writing; the most common complaint is a strict, occasionally slow new-account validation process.

Best for multichannel senders and WordPress sites. You can start with Brevo’s free plan here. Full breakdown in our Brevo review

2. Moosend — Best budget platform for automation

Moosend gives you advanced visual automation and unlimited sends from about $7/month — features most tools lock behind premium tiers. It rates 4.7 on G2 (700+ reviews), the highest of this group, though its Trustpilot score (~3.4) is dragged down by account-suspension complaints tied to aggressive anti-spam enforcement. It has no SMS, no built-in CRM, and far fewer integrations than the giants.

Best for budget-conscious, email-first teams. You can try Moosend free for 30 days. Full breakdown in our Moosend review

3. Mailchimp — Best for beginners

The most recognised name, with a polished interface and huge template library. It bills by contact count, which gets expensive as your list grows, but it remains the gentlest on-ramp for first-time senders. Verify current pricing and contact tiers on Mailchimp’s site.

4. MailerLite — Best generous free plan

Clean, simple, and known for one of the better free tiers in the category — a strong fit for newsletters and lean teams that want capability without complexity.

5. Kit (formerly ConvertKit) — Best for creators

Purpose-built for creators with tag-based subscriber management and monetisation features designed around an audience-first model. The natural pick for newsletter-led businesses.

How to choose (decision framework)

• Need SMS or WhatsApp alongside email, or a built-in CRM? Choose Brevo — it’s the only true multichannel option here.

• Big list, infrequent sends? Choose Brevo for its send-based billing.

• Email-only, tight budget, want serious automation? Choose Moosend.

• Brand-new and want the easiest start? Mailchimp or MailerLite.

• Creator monetising a newsletter? Kit.

• Risk-sensitive about vendor stability? Note Moosend has changed owners twice since 2021 (now under Constant Contact) — covered in its review.

Most businesses should start on a free plan and only upgrade when they hit a real limit.

Frequently asked questions

What is the best email marketing platform in 2026?

There is no single best. Brevo is best all-in-one, Moosend is best budget automation tool, and Mailchimp, MailerLite, and Kit lead for beginners, free plans, and creators respectively.

Is it cheaper to pay by contacts or by emails sent?

It depends on your ratio of list size to sends. Large list with infrequent sends favours send-based billing (Brevo). Smaller list with frequent sends favours contact-based billing with unlimited sends (Moosend, MailerLite).

Which platform has the best deliverability?

All five are capable. Independent inbox-placement tests put most of them in the high-80s to low-90s percent range; results vary by provider and by Gmail/Outlook specifically. Treat any single “98%” marketing claim with caution.

Which has the most generous free plan?

Brevo (high contact storage, ~300 emails/day) and MailerLite (generous overall free tier) are the strongest free options.