Published: May 17, 2026 | Last updated: May 17, 2026 | 12 min read
TL;DR
- Best overall: Mailchimp for simplicity and free tier; HubSpot for all-in-one marketing automation
- Best for agencies: ActiveCampaign for workflow automation and client reporting
- Best free option: Brevo (formerly Sendinblue) with 300 emails/day free forever
- Best for advanced automation: ConvertKit for creators; Klaviyo for e-commerce
- Key selection criterion: Choose based on email volume, automation complexity, and integration needs — not feature count
What to Look for in Email Marketing Software
Picking the right email tool matters because the wrong one either wastes money on unused features or limits you when you scale. Three factors decide which software fits your needs.
| Criterion | Why It Matters | What to Evaluate |
|---|---|---|
| Sending limits & pricing scale | Free tiers and entry plans vary wildly — some cap at 500 contacts, others at 300 emails/day | Can you start free? Does price scale linearly or jump at certain contact thresholds? |
| Automation & workflows | Basic drip campaigns work for welcome sequences; advanced workflows handle complex funnels with delays, conditions, and branching | Does it support conditional logic? Can you set delays between emails? Can you segment mid-campaign? |
| Integrations & API | Email doesn’t live alone — it connects to your website, CRM, e-commerce platform, analytics, and landing page builders | Does it integrate with your existing stack? Is the API documented? Does it cost extra? |
| Ease of setup & learning curve | A tool that takes 40 hours to configure costs time you don’t have, even if it’s cheaper per month | Can a non-technical person build a campaign in under 30 minutes? Is there video training? |
| Deliverability & inbox placement | Sending emails is worthless if they land in spam. Some tools have reputation issues; others have dedicated deliverability teams | Does the vendor authenticate emails with SPF/DKIM by default? Do they monitor sender reputation? |
1. Mailchimp — Best Overall for Beginners and Small Teams
Mailchimp is the entry point for 80% of new email marketers because it’s free up to 500 contacts and you can send unlimited emails. The interface was designed for non-technical people.
Key features:
- Free plan for up to 500 contacts with full automation
- Drag-and-drop email builder with pre-built templates
- Basic segmentation and automation workflows
- Built-in forms and landing pages (limited)
- A/B testing for subject lines and send times
- Integrations with Shopify, WooCommerce, WordPress, Facebook, and Instagram
Pricing: Free up to 500 contacts. Paid plans start at $20/month for 501-1,000 contacts.
Best for: Solo creators, nonprofits, small businesses under 5,000 contacts who need simplicity over power.
Why it ranks here: Mailchimp owns the beginner market because the free tier is genuinely useful and the learning curve is shallow. The trade-off: advanced automation is limited and deliverability is weaker than enterprise tools. You’ll outgrow it around 10,000 contacts or when you need complex multi-step funnels.
2. HubSpot Email Marketing — Best All-in-One Platform
HubSpot is not just email software — it’s a full CRM and marketing automation suite. Email is one piece of a larger system that tracks leads, manages sales pipelines, and reports on revenue attribution.
Key features:
- Email marketing with advanced automation and conditional logic
- Integrated CRM that syncs contact data automatically
- Landing page builder tied directly to email campaigns
- Free chatbot and form builder
- Real-time analytics on email performance, link clicks, and subscriber behavior
- Native integrations with Salesforce, Slack, Zapier, and 1,000+ other tools
Pricing: Free tier for email only (up to 1,000 contacts). Marketing Hub Professional starts at $800/month for full automation and reporting.
Best for: Growing companies that need email, CRM, and automation in one system; teams that want to track leads from email click to customer purchase.
Why it ranks here: HubSpot dominates the mid-market because once you connect email to CRM data, you stop switching tools — the switching cost is too high. The trade-off: entry-level plans are expensive and setup takes longer than Mailchimp. Start with the free tier to test it.
3. Brevo (Formerly Sendinblue) — Best Free Option with Real Power
Brevo is the strongest free option on this list because it doesn’t cap your send volume — you get 300 emails per day free forever, which translates to 9,000 emails per month at no cost.
Key features:
- 300 emails/day free tier with no contact limit
- SMS marketing included even on free plan
- Automation workflows with conditional branching
- CRM integration for contact management
- Multi-channel campaigns (email, SMS, push notifications, Facebook)
- Transactional email API with high deliverability
Pricing: Free forever plan (300 emails/day). Paid plans start at €20/month for unlimited sends.
Best for: Startups bootstrapping, nonprofits with limited budgets, anyone testing email before committing budget.
Why it ranks here: The math is simple: 300 emails/day free beats Mailchimp’s 500-contact limit if you’re active. The deliverability is reliable because Brevo caters to developers and e-commerce sites where bounces cost money. The trade-off: interface is less polished than Mailchimp and SMS adds complexity if you don’t need it.
4. ActiveCampaign — Best for Automation and Agency Work
ActiveCampaign is built for teams and agencies that need to create complex customer journeys, manage multiple clients, and prove ROI through detailed reporting.
Key features:
- Advanced automation with unlimited workflows and conditions
- Visual workflow builder with branching, delays, and conditional logic
- Sales automation tied to email engagement (track opens, clicks, deal movement)
- Contact scoring based on email and website behavior
- Multi-user access with role-based permissions for agency teams
- Deep integrations with e-commerce platforms, landing page builders, and CRMs
- Detailed attribution reporting (which email drove the sale)
Pricing: Starts at $19/month for 500 contacts. Professional plan at $99/month unlocks full automation. Enterprise custom pricing.
Best for: Agencies managing multiple brands, mid-market companies with complex funnels, teams that need to report on email ROI.
Why it ranks here: ActiveCampaign’s automation engine is unmatched. You can create funnels that are technically possible in HubSpot but would take hours to debug. The trade-off: pricing gets expensive fast (a 10,000-contact list costs $229/month on Professional plan) and setup requires technical understanding or consulting help.
5. ConvertKit — Best for Creators and Newsletters
ConvertKit is built specifically for writers, podcasters, and creators who monetize through subscriptions. Email is the core tool, not an afterthought.
Key features:
- Subscriber growth tools (landing pages, opt-in forms, incentive delivery)
- Drip campaigns on steroids for sequential email delivery
- Segmentation by post, tag, and subscriber list
- Subscriber milestones and automation based on subscriber behavior
- Affiliate program management built-in
- Clean, distraction-free editor that focuses on writing
- Integration with Stripe, Gumroad, and Patreon for paid subscriptions
Pricing: Free plan up to 1,000 subscribers. Paid plans start at $25/month (up to 300 subscribers).
Best for: Bloggers, newsletter writers, YouTube creators, podcasters, and anyone with a paid subscriber model.
Why it ranks here: ConvertKit made email feel less corporate and more authentic. You’re not managing customer lifecycles — you’re building a community. The trade-off: it’s not designed for e-commerce or traditional marketing automation. Use it if your revenue comes from reader subscriptions, not customer relationships.
6. Klaviyo — Best for E-Commerce and High-Volume Sends
Klaviyo powers email for online stores because it syncs directly with your product catalog and order history. Every customer gets personalized emails based on what they bought.
Key features:
- Automatic email triggers tied to customer behavior (first purchase, abandoned cart, product review request)
- Segmentation based on purchase history, revenue, and product category
- Dynamic email content that changes per customer (product recommendations, past purchase price, shipping status)
- SMS marketing with the same segmentation as email
- Flow builder for multi-step campaigns with visual conditions
- Deep e-commerce integrations (Shopify, WooCommerce, BigCommerce, Magento, custom APIs)
- Advanced analytics (revenue per email, customer lifetime value per campaign)
Pricing: Free for up to 250 contacts and 300 emails/month. Paid plans start at $20/month for 1,000 contacts and scale based on sends.
Best for: Shopify stores, online retailers, any brand selling physical or digital products where customer purchase history matters.
Why it ranks here: Klaviyo owns e-commerce email because it’s the only tool that treats product data as first-class. Your abandoned cart email will include the exact product images, prices, and reviews from your store. The trade-off: pricing is high for volume shops (1M emails costs ~$3,500/month) and it’s oversized for service businesses or nonprofits.
7. GetResponse — Best for Small Business All-in-One
GetResponse combines email, landing pages, webinars, and sales funnels in one platform. It’s cheaper than HubSpot and simpler than ActiveCampaign.
Key features:
- Email marketing with automation workflows and segmentation
- High-converting landing page builder with A/B testing
- Webinar hosting (live and automated evergreen webinars)
- Sales funnel builder with order bumps and upsells
- CRM for managing contacts and deals
- Ecommerce cart integration for abandoned cart recovery
- Built-in affiliate program tools
Pricing: Free plan up to 500 contacts. Paid plans start at $19/month (up to 1,000 contacts).
Best for: Small businesses, online course creators, consultants who need email + landing pages + sales funnels bundled.
Why it ranks here: GetResponse is the Goldilocks option — more powerful than Mailchimp, cheaper than HubSpot, simpler than ActiveCampaign. Everything is included (webinars, funnels, landing pages). The trade-off: none of the individual features compete with best-in-class tools (Klaviyo for email, Leadpages for landing pages, Zoom for webinars), so you’re choosing convenience over depth.
8. Constant Contact — Best for Local Businesses and Solopreneurs
Constant Contact is straightforward email marketing for local businesses, event organizers, and solopreneurs who need reliability without complexity.
Key features:
- Simple email editor with pre-designed templates
- Contact management and list segmentation
- Birthday and anniversary email automation
- Event marketing tools (e-ticket delivery, RSVP tracking)
- Social media posting integration
- Basic mobile app for managing campaigns on the go
- Live chat customer support (included, not a premium add-on)
Pricing: Starts at $20/month for unlimited contacts and sends.
Best for: Local service businesses (salons, gyms, plumbing), event organizers, nonprofits, solopreneurs on tight budgets.
Why it ranks here: Constant Contact’s price is honest — you pay one flat rate and send as much as you want. No contact-based pricing tiers, no overage charges. The trade-off: automation is basic (welcome sequence, birthday emails, that’s it) and the product feels dated compared to modern competitors. Use it if you send monthly newsletters and birthday promotions, not if you need complex funnels.
9. Omnisend — Best for Multichannel Marketing (Email + SMS + Push)
Omnisend is built for e-commerce stores that want to communicate via email, SMS, and web push notifications from a single platform. Think abandoned cart recovery across three channels simultaneously.
Key features:
- Unified inbox for email, SMS, and push notifications
- Automation that sends across all three channels (email first, SMS follow-up if no open)
- SMS automation based on email engagement (don’t SMS if they already opened the email)
- Subscriber preference management (let customers choose channels)
- Ecommerce integration (Shopify, WooCommerce, BigCommerce)
- SMS compliance built-in (TCPA, GDPR, list management)
- Advanced segmentation combining behavior from all channels
Pricing: Free for up to 500 subscribers and 6,000 emails/month. Paid plans start at $25/month.
Best for: E-commerce stores wanting to boost recovery rates with SMS, brands with high customer lifetime value who can afford SMS costs.
Why it ranks here: Omnisend solves a real problem: email open rates are declining, so SMS follow-ups recover carts that email alone misses. The trade-off: SMS is expensive (costs $0.01-0.03 per message on top of the platform fee) and the interface is crowded because three channels live together.
Comparison Table: Email Marketing Tools at a Glance
| Tool | Best For | Starting Price | Free Tier | Automation | Integrations |
|---|---|---|---|---|---|
| Mailchimp | Beginners | Free | 500 contacts | Basic | Good (100+) |
| HubSpot | All-in-one CRM | Free | 1,000 contacts | Advanced | Excellent (1,000+) |
| Brevo | Budget-conscious | Free | 300 emails/day | Intermediate | Good |
| ActiveCampaign | Agencies | $19/month | Limited trial | Advanced | Excellent |
| ConvertKit | Creators | Free | 1,000 subscribers | Intermediate | Good |
| Klaviyo | E-commerce | Free | 250 contacts | Advanced | Excellent (e-commerce) |
| GetResponse | Small business | Free | 500 contacts | Intermediate | Good |
| Constant Contact | Local business | $20/month | None | Basic | Fair |
| Omnisend | Multichannel e-commerce | Free | 500 contacts | Advanced | Excellent (e-commerce) |
Common Mistakes When Choosing Email Software
Mistake 1: Picking based on feature count, not your actual needs. Every tool on this list can send an email. The difference is in automation depth, integrations, and pricing tiers. A nonprofit doesn’t need Klaviyo’s product recommendation engine. A SaaS company doesn’t need ConvertKit’s subscriber growth tools. Match the tool to your workflow, not the marketing hype. Start free or with a trial, build one campaign, then decide.
Mistake 2: Ignoring deliverability and sender reputation. Some platforms have stricter authentication defaults (HubSpot, Klaviyo) while others let you send from anything (cheap bulk mailers). If your emails land in spam, no feature matters. Always check if the tool enforces SPF/DKIM authentication by default and offers sender reputation monitoring.
Mistake 3: Underestimating setup and integration time. A cheap tool that takes 60 hours to integrate with your CRM and landing page builder is more expensive than a pricier tool that connects in 20 minutes. Factor in your team’s technical skill and the cost of a consultant if needed. HubSpot is pricy but setup is faster than ActiveCampaign for most teams.
Mistake 4: Locking into a tool too early. Don’t sign a long-term contract until you’ve tested the tool for at least one month with real campaigns. Free trials are free for a reason — vendors want you to discover blockers early, not after paying for a year. The cost of switching later is higher.
Frequently Asked Questions About Email Marketing Software
What is the best email marketing software for beginners?
Mailchimp is the standard starting point because the free tier is genuinely useful (500 contacts, unlimited emails), the interface was designed for non-technical users, and the learning curve is shallow. If you’re bootstrapping, Brevo is stronger because you get 300 emails/day free forever — no contact limits.
Are there truly free email marketing tools?
Yes. Mailchimp (500 contacts), Brevo (300 emails/day), Klaviyo (250 contacts), GetResponse (500 contacts), and Omnisend (500 contacts) all have genuine free tiers with automation included. The catch: when you grow past the free tier limits, you’ll pay.
What’s the difference between Mailchimp and HubSpot?
Mailchimp is email software first — it’s affordable and simple. HubSpot is a CRM platform where email is one piece. Use Mailchimp if you only need email. Use HubSpot if you need to track leads through a sales pipeline and report on which email drove which deal. HubSpot is pricier but the integration saves you from juggling three tools.
Should I use an all-in-one platform or best-of-breed tools?
For most small teams, one platform (HubSpot, GetResponse, ActiveCampaign) saves money and time. For larger teams or specialized needs, best-of-breed tools (Klaviyo for email + Stripe for payments + Zapier for automation) let you pick the best at each layer. If you’re under $100k/year in revenue, start with all-in-one.
How much should email marketing software cost?
For a 5,000-contact list sending 5 campaigns/month, expect $20-100/month. For 50,000 contacts, expect $200-500/month. For 500,000+ contacts, negotiate custom pricing starting at $2,000+/month. Free tiers can take you through your first 10,000 contacts if you’re disciplined.
Which email tool integrates best with Shopify?
Klaviyo and Omnisend are built for Shopify and will sync your product catalog and order history automatically. Both have free tiers and charge based on subscriber count and SMS volume. If you’re a Shopify store choosing between them, Klaviyo has better AI-powered product recommendations; Omnisend has better SMS automation.
What if I have a large contact list (100k+)?
For 100k+ contacts, you’ll outgrow most tools’ UI and pricing. Consider ActiveCampaign (scales to 100k+ with enterprise features) or Klaviyo (built for e-commerce volume). For truly massive lists (millions of contacts), you might need a dedicated ESP like Sendgrid or Amazon SES with a UI layer on top. At that scale, talk to a consultant.
Key Takeaways
- Start with Mailchimp or Brevo if you’re bootstrapping — free tiers are genuinely useful and you’ll know if you need something more powerful.
- Choose based on your workflow (e-commerce, agency work, creator economy, local business), not feature count.
- All-in-one platforms (HubSpot, ActiveCampaign, GetResponse) save time and integration headaches compared to mixing best-of-breed tools.
- E-commerce stores should test Klaviyo or Omnisend specifically — generic email tools don’t handle product data well.
- Always test with a free trial or free tier for at least one campaign before paying. The cost of switching later is high.
- Deliverability matters more than features. Check if the tool enforces SPF/DKIM by default and offers sender reputation monitoring.
