Best Email Marketing Tools 2026: Top 5 Compared

The best email marketing tools of 2026: top 5 compared

Email marketing remains one of the highest-ROI channels available — on average €42 returned for every €1 spent. But the gap between basic email tools and sophisticated automation platforms is vast. This comparison helps you choose the right level for your business.

Quick overview: 1. ActiveCampaign 2. Klaviyo 3. Brevo 4. MailerLite 5. Mailchimp

How we evaluate

• Automation capabilities (30%)
• Deliverability (25%)
• Ease of use (20%)
• Integrations (15%)
• Price/value (10%)

1. ActiveCampaign — Best automation for SMBs

ActiveCampaign is the specialist in email marketing automation. The visual automation builder enables complex, behaviour-driven flows based on clicks, page visits, purchases and tags. Lead scoring, built-in CRM and 900+ integrations make it the most complete option for SMBs.

Pros: Most powerful automation builder in SMB category, built-in CRM, excellent deliverability, 900+ integrations.
Cons: No free version, can be overwhelming for beginners, less suitable for pure e-commerce (Klaviyo is better).
Price: Starter €15/mo | Plus €49/mo | Professional €79/mo
Final score: 9.0/10

2. Klaviyo — The e-commerce email standard

Klaviyo is the undisputed standard for e-commerce email with deep Shopify, WooCommerce and Magento integrations. Flows like welcome series, cart abandonment and win-back campaigns are set up once and run automatically, directly attributed to revenue.

Pros: Best e-commerce integrations, direct revenue attribution per flow and campaign, strong segmentation on shop data.
Cons: Less suitable for B2B or service businesses without an online shop, price scales quickly.
Price: Free (250 contacts) | €20/mo (500 contacts) | scales up
Final score: 8.8/10

3. Brevo — Multichannel with generous free tier

Brevo combines email, SMS, WhatsApp and chat marketing in one GDPR-compliant platform with European servers. The free version offers 300 emails per day with unlimited contacts — the most generous free tier in this comparison.

Pros: Multichannel in one platform, fully GDPR compliant, most generous free tier, competitive pricing.
Cons: Automation less powerful than ActiveCampaign, interface less intuitive.
Price: Free | Starter €9/mo | Business €18/mo
Final score: 8.5/10

4. MailerLite — Best for beginners and small budgets

MailerLite is the most accessible email marketing tool — clean interface, solid automation and a generous free plan (12,000 emails/month to 1,000 subscribers). Ideal for newsletters, simple automations and landing pages without a steep learning curve.

Pros: Most user-friendly interface, generous free plan, good automation for the price, built-in landing page builder.
Cons: Less powerful automation than ActiveCampaign, limited CRM features, fewer integrations.
Price: Free (12,000 emails/mo to 1,000 subscribers) | Growing Business €9/mo
Final score: 8.3/10

5. Mailchimp — The original, but showing its age

Mailchimp is the most widely known email marketing tool and the starting point for many businesses. The interface is familiar and the brand recognition is high. However, the price-to-value ratio has declined as competitors have caught up and surpassed it in features.

Pros: Widely known, easy to use, large template library, good for basic newsletters.
Cons: Overpriced compared to competitors, automation less powerful than ActiveCampaign or Klaviyo, free plan more limited than MailerLite.
Price: Free (500 contacts, 1,000 emails/mo) | Essentials €10/mo
Final score: 7.8/10

FAQ

Which email tool has the best free plan? Brevo offers unlimited contacts with 300 emails/day. MailerLite offers 12,000 emails/month to 1,000 subscribers. For most starting businesses, MailerLite or Brevo is the best free starting point.

ActiveCampaign or Klaviyo? ActiveCampaign is better for B2B and service businesses. Klaviyo is the clear winner for e-commerce with a Shopify or WooCommerce store.