10 Best Free Email Marketing Tools in 2026 — Compared

Brevo offers the most generous free plan of any major email marketing platform — unlimited contacts, 300 emails per day (9,000/month), marketing automation, a built-in CRM, transactional emails, and SMS marketing tools. The only restriction is a daily sending cap and Brevo branding on emails.

What makes it stand out: Unlimited contacts on the free plan is a genuine rarity. Most competitors cap you at 500–1,000. If you have 5,000 subscribers but send infrequently, Brevo's free plan works when nothing else does. The automation builder is also included — you can build welcome sequences, lead nurture flows, and behavior-triggered emails without paying a cent.

Free plan limitations: 300 emails/day cap is the main constraint. If you have a large list and want to blast everyone on the same day, you hit the limit fast. No A/B testing on free plan. Brevo branding in email footer.

Mailchimp is the most recognized email marketing tool in the world, and its free plan remains the easiest on-ramp for complete beginners. The drag-and-drop editor is intuitive, the template library is the largest in the industry, and the analytics dashboard gives you everything you need to understand what is working.

What makes it stand out: Ease of use is unmatched. Mailchimp also includes a basic landing page builder, a website builder, a forms tool, and a basic CRM — all on the free plan. If you have never sent a marketing email before, Mailchimp gets you up and running faster than anything else.

Free plan limitations: Only 500 contacts and 1,000 emails/month — the tightest limits on this list. Automation is locked behind paid plans. Mailchimp branding on all emails. No A/B testing. Mailchimp's free plan has shrunk significantly from its original 2,000 contact limit.

ConvertKit (rebranding to "Kit" in 2025) is designed specifically for creators, coaches, and service businesses. Its free plan allows up to 1,000 subscribers with unlimited email broadcasts — and uniquely, includes the visual automation builder for building subscriber journeys.

What makes it stand out: The automation sequence builder on the free plan is the most powerful of any free offering. You can build multi-step welcome sequences, tag-based segmentation, and conditional email flows without upgrading. ConvertKit's deliverability is also among the best in the industry.

Free plan limitations: No landing pages on the free plan (added in paid). Limited to 1 email sequence automation per account. No A/B testing. Fewer design templates than Mailchimp — ConvertKit leans toward plain-text, high-deliverability emails.

Mailerlite is consistently underrated. Its free plan gives you 1,000 subscribers, 12,000 emails/month, automation workflows, landing pages, a website builder, a pop-up form builder, and solid analytics — all at zero cost. The interface is clean and modern, and setup takes under 30 minutes.

What makes it stand out: The free plan includes landing pages, which is extremely rare. Combined with automation and a generous send limit, Mailerlite's free tier is one of the best complete packages available. Excellent for local service businesses that want a simple, reliable monthly newsletter plus automated follow-up sequences.

Free plan limitations: Limited to 1,000 subscribers. Access to some advanced features (custom HTML editor, promotional popups, newsletter referral program) requires the paid plan. Mailerlite branding in email footer on free plan.

HubSpot's free CRM includes an email marketing tool that is genuinely powerful — up to 2,000 emails per month to an unlimited contact database, with personalization using CRM data, basic automation, and detailed engagement reporting. The email editor connects directly to contact records, deal stages, and company data.

What makes it stand out: The integration between email marketing and CRM is unmatched on the free tier. If you already use HubSpot (or plan to), the email tool is the obvious choice — every email open, click, and reply is logged against the contact record automatically.

Free plan limitations: 2,000 email sends per month caps you quickly if you have more than a few hundred contacts. Advanced automation requires Marketing Hub Starter ($20/mo). HubSpot branding in email footer. The free plan is best viewed as a supplement to the HubSpot CRM, not as a standalone email marketing solution.

Sender is the most generous free plan on the market for higher-volume senders — 2,500 contacts and 15,000 emails per month, with automation, drag-and-drop templates, and an e-commerce integration layer for Shopify and WooCommerce. Most people have never heard of Sender, which means you are reading about a genuinely underrated tool.

What makes it stand out: 15,000 free emails per month is 50% more than Mailerlite and 66% more than most competitors. For small e-commerce stores or any business sending weekly emails to a growing list, Sender's free plan lasts significantly longer before an upgrade is needed.

Free plan limitations: Smaller template library than Mailchimp. Less brand recognition means fewer third-party integrations compared to Mailchimp or Brevo. Some users report the automation builder has a steeper learning curve.

Zoho Campaigns is the email marketing arm of the Zoho business software ecosystem. The free plan allows 2,000 contacts and 6,000 emails per month, with basic automation and integration with Zoho CRM. If you already use Zoho Books, Zoho CRM, or other Zoho products, Campaigns is the natural email choice.

What makes it stand out: Tight integration with the full Zoho suite means contacts, deals, and customer data flow seamlessly between tools. For businesses running their operations on Zoho, this eliminates data silos that other email tools create.

Free plan limitations: Less polished interface than Mailchimp or Mailerlite. Best value only if you are in the Zoho ecosystem — otherwise competitors offer more on their free plans. Email templates are functional but not as visually impressive as top competitors.

Klaviyo is the undisputed leader in e-commerce email marketing, with deep Shopify integration, abandoned cart automation, product recommendation emails, and revenue attribution reporting. The free plan only supports 250 contacts and 500 emails/month — but for a small Shopify store wanting to experience the most powerful e-commerce email tool available, it is an excellent starting point.

What makes it stand out: No other tool matches Klaviyo's e-commerce data layer. You can trigger emails based on purchase history, browsing behavior, average order value, and product categories. For DTC brands, Klaviyo's free tier gives you a taste of automation that competes with tools costing $500+/month at scale.

Free plan limitations: 250 contacts is extremely limited — you will need to upgrade almost immediately if you have any meaningful traffic. Klaviyo pricing scales quickly with list size and becomes expensive beyond 10,000 subscribers. Not suitable for non-e-commerce businesses.

Benchmark Email focuses on simplicity. The free plan allows 500 contacts and 3,500 emails per month with a clean drag-and-drop editor, responsive templates, and basic list management. There is no unnecessary complexity — if you just want to send a monthly newsletter to a small list, Benchmark is fast to set up and easy to use.

What makes it stand out: The editor is arguably the most beginner-friendly on this list — cleaner even than Mailchimp. Benchmark also has strong international support and multi-language capabilities, making it a good choice for businesses with international audiences.

Free plan limitations: No automation on the free plan. Limited analytics compared to Mailchimp or Mailerlite. 500-contact limit matches Mailchimp's restrictive free tier. Benchmark's paid plans are slightly more expensive than equivalents at Brevo or Mailerlite.

Moosend does not offer a permanently free plan in the traditional sense — instead, it provides a 30-day free trial with no credit card required and access to all features including unlimited emails, automation workflows, landing pages, and subscription forms. After 30 days, it starts at $9/month for up to 500 subscribers.

What makes it stand out: Moosend's automation builder is one of the most advanced available — visual, multi-branch, with AI-driven send-time optimization and product recommendation algorithms. The 30-day trial gives you a complete look at a professional-grade tool before committing.

Free plan limitations: The lack of a permanently free tier puts Moosend at a disadvantage against Brevo and Mailerlite. After the trial, you pay — though $9/month is competitive. Best suited for businesses ready to invest in email marketing and wanting to evaluate the best automation tool before paying.