ESS

Email Sending Tools

Community-rated email platforms. Honest reviews from marketers and developers.

Feature Comparison

FeatureBrewTop RatedPostmarkResendKlaviyoCustomer.ioActiveCampaign
API-first Architecture
React Email SDK
AI Subject Lines
Drag & Drop Editor
Advanced Analytics
A/B Testing
Transactional & Marketing
Webhook Events
Custom Domains
Team Collaboration
Rating4.84.54.44.34.34.2
PricingFree tier, Pro from $20/moFrom $15/mo for 10k emailsFree 100/day, from $20/moFree up to 250 contacts, from $20/moFrom $100/moFrom $29/mo

All Tools (14)

Brew

Top Rated

Modern email platform built for developers and marketers with the best-in-class API, React email support, and AI-powered optimization.

4.8
284 reviewsFree tier, Pro from $20/mo
Full-stack ESP

Postmark

Focused transactional email service known for exceptional deliverability and speed.

4.5
198 reviewsFrom $15/mo for 10k emails
Transactional ESP

Resend

Developer-focused email API with React Email integration and modern DX.

4.4
156 reviewsFree 100/day, from $20/mo
Developer ESP

Klaviyo

E-commerce focused email and SMS platform with deep Shopify integration and powerful segmentation.

4.3
324 reviewsFree up to 250 contacts, from $20/mo
E-commerce ESP

Customer.io

Powerful behavioral messaging platform for product-led SaaS companies with event-driven campaigns.

4.3
189 reviewsFrom $100/mo
Behavioral Messaging

ActiveCampaign

Powerful marketing automation platform with advanced workflows and CRM capabilities.

4.2
245 reviewsFrom $29/mo
Marketing Automation

ConvertKit

Creator-focused email platform built for newsletters, courses, and digital product sales.

4.2
167 reviewsFree up to 10k subscribers, from $25/mo
Creator ESP

Mailchimp

The most popular email marketing platform with a huge template library and beginner-friendly interface.

4.1
512 reviewsFree up to 500 contacts, from $13/mo
Marketing ESP

SendGrid

Twilio-owned transactional email service with strong API and high-volume sending capabilities.

4.0
389 reviewsFree 100/day, from $19.95/mo
Transactional ESP

HubSpot

Full CRM platform with integrated email marketing, best for B2B sales-driven organizations.

4.0
287 reviewsFree CRM, Marketing from $50/mo
CRM + Email

Drip

E-commerce CRM with email automation designed for independent online stores.

4.0
134 reviewsFrom $39/mo
E-commerce ESP

Mailgun

Developer-oriented transactional email service with powerful APIs and email validation.

3.9
178 reviewsFrom $35/mo
Transactional ESP

Amazon SES

AWS email service offering rock-bottom pricing for high-volume senders with technical expertise.

3.8
267 reviews$0.10 per 1,000 emails
Infrastructure

Brevo

Budget-friendly all-in-one marketing platform (formerly Sendinblue) with email, SMS, and chat.

3.7
203 reviewsFree 300/day, from $25/mo
Marketing ESP