Email Marketing Tools with API Access

Systeme.io is a bootstrapped French all-in-one marketing platform founded by Aurelien Amacker in 2017 that bundles email marketing, sales funnels, onl...

Instantly.ai is a cold email platform built for volume, offering unlimited email accounts, AI-powered warmup, and inbox rotation to maximize deliverab...

Mailtrap is a unique platform that combines an email testing sandbox with transactional email sending, purpose-built for development teams. Its sandbo...

Moosend is a budget-friendly email marketing platform that punches above its weight class. Despite its low price point, it offers solid automation, tr...

Sender offers one of the most generous free plans in email marketing, combined with built-in SMS capabilities. It's an excellent choice for budget-con...

EngageBay is a bootstrapped all-in-one CRM platform that bundles marketing automation, sales pipeline management, helpdesk ticketing, and live chat in...

Apollo.io is the leading sales intelligence platform with a 210M+ contact database, built-in email sequences, dialer, and meeting scheduler. It earned...

Kit (formerly ConvertKit) is purpose-built for online creators including bloggers, podcasters, YouTubers, and course creators. It emphasizes simplicit...

MailerLite is known for its simplicity, affordability, and clean design. It's one of the best options for small businesses and beginners who want prof...

Klaviyo is the gold standard for ecommerce email and SMS marketing, particularly for Shopify stores. Its deep integration with ecommerce platforms ena...

Omnisend is an ecommerce-focused marketing platform that combines email, SMS, and web push notifications. It offers pre-built automation workflows for...

tinyEmail is an AI-powered email marketing platform purpose-built for Shopify and e-commerce stores, offering an unusually affordable volume-based pri...

Loops is a developer-first email platform designed exclusively for SaaS companies, combining marketing and transactional email in a single clean inter...

Postmark, originally built by Wildbit and acquired by ActiveCampaign in 2022, is a transactional email service laser-focused on deliverability and spe...

Reply.io is an AI-powered sales engagement platform that unifies email, LinkedIn, calls, SMS, and WhatsApp into multichannel sequences for B2B outreac...

Smartlead is a cold email infrastructure platform built for agencies and high-volume senders, offering unlimited email accounts and warmup on every pl...

ActiveCampaign is widely regarded as having the best marketing automation capabilities in the email marketing space. It combines email marketing with ...

Brevo (formerly Sendinblue) stands out with its unique pricing model based on email volume rather than subscriber count. This makes it particularly at...

beehiiv was built by the team behind Morning Brew's growth to 4 million subscribers. It's specifically designed for newsletter businesses with built-i...

Lemlist is a multichannel cold outreach platform that combines email campaigns, LinkedIn automation, and cold calling with a built-in 450M+ lead datab...

Woodpecker is a B2B cold email tool founded in 2015 that takes a deliverability-first approach with built-in warmup, catch-all verification, and bounc...

Mailmodo is the pioneering interactive email marketing platform that uses AMP technology to let recipients fill forms, take surveys, book meetings, an...

ConvertFlow is an all-in-one conversion platform that combines personalized popups, multi-step forms, landing pages, quizzes, and sticky bars to conve...

Drip is a focused ecommerce marketing platform known for its powerful visual automation builder and behavior-based segmentation. It's designed specifi...

Buttondown is a minimalist newsletter platform beloved by developers and writers who prefer Markdown over drag-and-drop editors. It focuses on writing...

HubSpot's email marketing is part of its complete Marketing Hub. While the free and Starter tiers offer competitive email marketing, the real power co...

Amazon SES is AWS's cloud-based email sending service that processes over a trillion emails annually for customers like Netflix and Duolingo. At just ...

Elastic Email is a budget-friendly email delivery platform founded in 2010 that offers both transactional email API and marketing email capabilities. ...

Customer.io is a behavioral messaging platform built for product-led SaaS companies that need to trigger automated emails, SMS, push notifications, an...

Ortto (formerly Autopilot) is an all-in-one marketing platform that combines a Customer Data Platform, visual journey-based automation, and built-in a...

Braze is a leading enterprise customer engagement platform that enables brands to orchestrate personalized, cross-channel experiences at massive scale...

GetResponse is a full-featured marketing platform that goes beyond email marketing to include webinars, landing pages, sales funnels, and marketing au...

Mailchimp is the most widely recognized email marketing platform, used by millions of businesses worldwide. Acquired by Intuit in 2021, it offers a fu...

Zoho Campaigns is the email marketing arm of the Zoho ecosystem, launched in 2012 and designed to work directly with Zoho CRM, Zoho One, and 45+ other...

Benchmark Email is a multilingual email marketing platform founded in 2004 that takes an all-features-included approach, giving every user access to a...

Iterable is an AI-powered cross-channel marketing platform that helps brands create individualized customer experiences across email, SMS, push, in-ap...

AWeber is one of the original email marketing platforms, serving small businesses since 1998. It offers the largest template library (600+) and an imp...

EmailOctopus is a stripped-back email marketing tool that focuses on simplicity and affordability. It's ideal for small businesses and creators who wa...

Keap (formerly Infusionsoft, founded 2001, acquired by Thryv in 2024) is a premium all-in-one CRM and marketing automation platform built for sales-dr...

Mailgun is a Sinch-owned transactional email API platform founded in 2010, designed for developers who need reliable, high-volume email delivery via R...

Resend is a modern, developer-first email API founded in 2023 by Zeno Rocha, backed by Y Combinator. It stands out with its React Email framework that...

MailerSend is a transactional email service built by the team behind MailerLite, launched in 2020 with over a decade of email deliverability expertise...

Sendy is a self-hosted email newsletter application that connects to Amazon SES to deliver emails at a fraction of the cost of traditional email marke...

Listmonk is a free, open-source, self-hosted newsletter and mailing list manager written in Go. It handles millions of emails with minimal resources a...

Constant Contact is one of the most established email marketing platforms, particularly strong for small businesses and nonprofits. Its event marketin...

Campaign Monitor is particularly well-suited for agencies and brands that need polished, branded email campaigns. Its client management features and b...

Ghost is an independent, open-source publishing platform built for professional content creators who want full control over their audience and revenue...

Encharge is a marketing automation platform built for SaaS and product-led companies. It excels at behavior-based email sequences triggered by in-app ...

Salesforce Marketing Cloud is the enterprise marketing automation suite within the Salesforce ecosystem, offering email, SMS, social, advertising, and...

Twilio SendGrid is a cloud-based email delivery platform founded in 2009 and acquired by Twilio for $2 billion in 2019. It uniquely splits its offerin...

Mailjet is a French-founded email platform (now owned by Sinch) that uniquely combines transactional and marketing email under one roof with real-time...

Vero is a multi-channel customer engagement platform for product-led teams that need behavioral messaging. It enables personalized emails, push notifi...

Maropost is a unified commerce and marketing automation platform for mid-market ecommerce businesses. It combines email, SMS, social advertising, and ...

BirdSend is a budget-friendly email marketing tool built for content creators. It focuses on deliverability and revenue tracking while keeping costs 3...

Plunk is an open-source email platform that combines transactional emails, workflow automation, and campaign broadcasts in one tool. Built for develop...

Venturz is an all-in-one startup platform that bundles website building, CRM, email marketing, community management, and helpdesk into a single subscr...