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Email Marketing Comparison

Mailchimp vs. Resend

At a glance

At a glance

Mailchimp

Best for

Best for teams that want an email marketing platform with designed templates, automation and AI writing tools, and a Marketing API to connect their own data.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Resend

Best for

Best for product and engineering teams that want transactional email, broadcasts and templates in the same codebase as the application that sends them.

  • Freelancers
  • Small and mid-sized
  • Enterprise

Cataleo does not name a winner. Both statements come from the vendors themselves.

Full Comparison

Criterion Mailchimp Resend
Starting price lower value From $13 / month Essentials plan; the price scales with the number of contacts. Free tier; Pro from $20 / month Transactional and marketing volume are billed separately. The transactional ladder runs Free, Pro from $20 per month and Scale from $90 per month, priced in bands by monthly email volume; marketing runs Free, Pro Marketing from $40 per month and Enterprise, priced by contact count.
Free trial Free plan available for up to 500 contacts Free tier: 3,000 emails per month, 100 per day, 3 domains, plus 1,000 marketing contacts
API Yes, a Marketing API for audiences, automations and data sync, plus more than 300 integrations Yes, REST API with official SDKs for Node.js, Python, PHP, Ruby, Go, Rust, Elixir, Java and .NET, plus a CLI, webhooks and an official MCP server
Hosting Cloud (SaaS) Cloud (SaaS)
Campaign types Yes, email newsletters and campaigns, with A/B testing and scheduling on paid plans Transactional email over the API, broadcasts to contacts and segments, and inbound email by pointing MX records at Resend
Automation and journeys Yes, automation flows, up to 3 steps on Essentials and up to 200 flows on Standard and Premium Yes, flows triggered by custom events from your own application, built from condition, delay, wait for event, send email, contact update, contact delete and add to segment steps, with a Runs view for debugging
Segmentation and personalisation Yes, segmentation and dynamic content, with predictive segmentation on Premium Yes, contacts with custom properties grouped into segments, plus Topics so recipients can opt in or out of individual categories
Templates and editor Yes, professionally designed templates and an editor, with custom-coded templates on Premium React Email, a component-based template system written in code; there is no drag-and-drop builder
Deliverability and testing Yes, A/B testing and scheduling on paid plans Domain verification with SPF, DKIM and DMARC, delivery event webhooks and event monitoring in the dashboard; dedicated IPs are a $30 per month add-on on Scale and above
Ecommerce and CRM data Yes, audience data with tags and more than 300 integrations Contacts are created and updated over the API or bulk-imported by CSV up to 200 MB, with custom properties carrying the data used for personalisation
Integrations and API Yes, a Marketing API for audiences, automations and data sync Yes, REST API with bearer key authentication, a batch endpoint for up to 100 messages per request, SDKs for nine languages, a CLI, webhooks and an official MCP server
AI features stated Yes No
MCP-ready No stated Yes
Deployment Cloud (SaaS), Browser-based Cloud (SaaS), Browser-based
Support more entries Email helpdesk, Chat, Phone Email helpdesk
Onboarding Not stated Documentation and knowledge base
Company size Freelancers, Small and mid-sized, Enterprise Freelancers, Small and mid-sized, Enterprise

Compare more tools

Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.

The short version

Key Differences

  • Starting price Mailchimp From $13 / month Resend Free tier; Pro from $20 / month
  • Free trial Mailchimp Free plan available for up to 500 contacts Resend Free tier: 3,000 emails per month, 100 per day, 3 domains, plus 1,000 marketing contacts
  • Support Mailchimp Email helpdesk, Chat, Phone Resend Email helpdesk
  • AI features Mailchimp Yes Resend No
  • MCP-ready Mailchimp No Resend Yes

Every line is one datapoint from the table above, picked automatically. Nothing here is written text.

The trade-offs

Strengths and Limitations

Mailchimp

Strengths

  • Generative AI writing and design tools on the Standard and Premium plans
  • Marketing API with webhooks and OAuth 2 for audiences and automations
  • More than 300 integrations
  • Free plan for up to 500 contacts

Limitations

  • Prices scale with the number of contacts
  • Predictive segmentation and custom-coded templates are reserved for the top plans

Resend

Strengths

  • Transactional sending, broadcasts, contacts and automations on one API and one account
  • Official SDKs for Node.js, Python, PHP, Ruby, Go, Rust, Elixir, Java and .NET, plus a CLI
  • Standing free tiers on both ladders rather than a time-limited trial
  • Inbound email by pointing MX records at Resend, delivered as webhooks
  • Official MCP server, so the platform can be driven by AI agents

Limitations

  • Templates are React components, so building an email needs a developer
  • Two separate price ladders, one for sending volume and one for contacts
  • Dedicated IPs, extra domains and SSO are priced as add-ons on top of the plan
  • SSO and dedicated IPs require the Scale plan or above
  • The free tier caps sending at 100 emails per day

Plans

Pricing

Mailchimp

  • Free $0 / month Up to 500 monthly sends and 250 contacts, with a limited set of templates.
  • Essentials From $13 / month Designed templates, A/B testing, scheduling and up to 3 automation flow steps. Scales with contacts.
  • Standard From $20 / month Adds AI writing and design tools and up to 200 automation flows. Scales with contacts.
  • Premium From $350 / month Adds unlimited contacts and seats, predictive segmentation, phone and priority support and custom-coded templates.
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Resend

  • Free $0 3,000 emails per month, capped at 100 per day, 3 domains, 10,000 automation runs and 30-day data retention. Marketing side is free up to 1,000 contacts.
  • Pro $20 Per month, 50,000 emails and 10 domains, no daily limit, 5 webhook endpoints. $35 per month for 100,000 emails. Overage $0.90 per 1,000 emails.
  • Scale $90 Per month, from 100,000 emails and 1,000 domains, 10 webhook endpoints and a dedicated Slack channel. Rises through $160, $350, $650, $825 and $1,150 per month up to 2.5 million emails, with the overage rate falling from $0.90 to $0.46 per 1,000.
  • Pro Marketing $40 Per month for 5,000 contacts, rising to $650 per month for 150,000 contacts.
  • Enterprise Not stated Custom volume and contact limits, a 99.99% uptime SLA, a dedicated customer success manager, migration support and flexible AI credits.
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What users say

Review Scores · opens after launch

Mailchimp

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Resend

Ease of use
Not rated yet
User interface
Not rated yet
Onboarding
Not rated yet
Support and service
Not rated yet
Value for money
Not rated yet
Features
Not rated yet

No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.

Where this comes from

Where this comes from

Mailchimp https://mailchimp.com · checked against the official source on 2026-08-19

Resend https://resend.com · checked against the official source on 2026-09-07

This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.