Alternatives to Salesforce Marketing Cloud in 2026

Postiz-app gitroomhq

📨 The ultimate agentic social media scheduling tool 🤖

Complete system Usable You manage several social accounts and want a Buffer alternative you can self-host or buy hosted.

★ 41k AGPL-3.0 TypeScript Active, pushed today

Listmonk knadh

High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.

Complete system Production-ready You send newsletters to large lists and want to pay only for SMTP or SES instead of per-subscriber pricing.

★ 24k AGPL-3.0 Go Active, pushed yesterday

React Email resend

💌 Build and send emails using React

Developer tool Production-ready Your team writes React and wants maintainable, previewable email templates for any sending provider.

★ 20k MIT TypeScript Active, pushed 3 days ago

MJML mjmlio

MJML: the only framework that makes responsive email easy

Framework or platform Production-ready Anyone who hand-codes HTML emails and wants them to render in Outlook and Gmail without table hacks.

★ 18k MIT JavaScript Active, pushed 10 days ago

Postal postalserver

📮 A fully featured open source mail delivery platform for incoming & outgoing e-mail

Complete system Production-ready You send large volumes of transactional email and want your own Sendgrid-style platform on your own IPs.

★ 17k MIT Ruby Active, pushed 4 days ago

Plunk useplunk

The Open-Source Email Platform

Complete system Usable You want one open-source tool for both product emails and newsletters on AWS SES.

★ 5.6k AGPL-3.0 TypeScript Active, pushed yesterday

React Email Editor unlayer

Drag-n-Drop Email Editor Component for React.js

Integration Production-ready Your product needs users to design emails or newsletters inside it.

★ 5.3k MIT TypeScript Active, pushed 2 days ago

useSend usesend

Open source alternative to Resend, Sendgrid, Postmark etc.

Complete system Usable You want Resend or Postmark convenience at SES prices, hosted or self-hosted.

★ 4.8k AGPL-3.0 TypeScript Active, pushed 3 days ago

BillionMail Billionmail

BillionMail gives you open-source MailServer, NewsLetter, Email Marketing — fully self-hosted, dev-friendly, and free from monthly fees. Join the discord: https://discord.gg/asfXzBUhZr

Complete system Usable You want to run your own mail server and campaigns together and know how to manage IP reputation.

★ 16k AGPL-3.0 Go Slowing, pushed 5 months ago

Dittofeed dittofeed

Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨

Complete system Usable You want Customer.io or Braze-style lifecycle messaging that you can self-host, and have engineers to wire in your event data.

★ 3k MIT TypeScript Active, pushed 21 days ago

BrightBean Studio brightbeanxyz

Open-source, self-hostable social media management platform. Schedule, publish, and manage content across 10+ platforms from a single dashboard. Free alternative to Buffer, Sendible, and SocialPilot.

Complete system Experimental An agency wants a self-hosted Buffer or Sendible replacement and can run a Django app.

★ 2.6k AGPL-3.0 Python Active, pushed 8 days ago

Keila pentacent

Open Source Newsletter Tool.

Complete system Usable You want a simple self-hosted or EU-hosted alternative to Mailchimp for newsletters.

★ 2.3k AGPL-3.0 Elixir Active, pushed 2 days ago

SendPortal mettle

Open-source self-hosted email marketing. Manage your own newsletters at a fraction of the cost.

Complete system Usable You want cheap newsletter sending on your own server and already use a transactional email provider.

★ 2.2k MIT PHP Active, pushed 11 days ago

Prod-FARM-IOS-Core Git-Agni

A farm of real iPhones, run from your Mac. Open-source iOS device automation with live control, a Postgres-backed scheduler, and TikTok workflows. Self-hosted, Apache-2.0.

★ 1.7k Apache-2.0 TypeScript Active, pushed 2 months ago

MailAccess KatrielMoses

Free email OSINT tool, 5000+ platforms, identity clustering, breach detection. No API keys required. pip install mailaccess

★ 1.7k MIT Python Active, pushed 6 days ago

Framework maizzle

The modern email development framework.

Framework or platform Production-ready Developers who know Tailwind want to code email templates in a build pipeline.

★ 1.6k MIT TypeScript Active, pushed 8 days ago

PostBot gitcoffee-os

PostBot 内容同步助手 一款开源的多平台内容同步分发生产力工具。 支持将文章、笔记、动态、图片、视频、音频等内容，一键同步发布至主流媒体平台。覆盖微信/微博/今日头条/小红书/知乎/百家号/企鹅号/视频号/抖音/快手/哔哩哔哩（B站）等国内主流媒体平台，可轻松扩展兼容 X（Twitter）、Facebook、Instagram、TikTok、YouTube、LinkedIn 等国际媒体平台。

Complete system Usable A Chinese-language creator or small team posts the same content to many domestic platforms and wants to do it in one step.

★ 1.6k Apache-2.0 TypeScript Active, pushed 18 days ago

MailCheap marclou

Newsletters where you pay for the emails you send, not for dormant subscribers, at a fraction of the price of beehiiv and the like. Open source: self-host it, or use mailcheap.ai.

Complete system Experimental A newsletter with many inactive subscribers wants to cut costs compared with beehiiv or Mailchimp.

★ 1.4k AGPL-3.0 JavaScript Active, pushed 9 days ago

Email Templates ColorlibHQ

Free HTML email templates for Mailchimp and other emails services

Template or starter Usable You need a decent-looking email layout quickly and do not want to design from scratch.

★ 1.2k MIT HTML Active, pushed 2 months ago

Mixpost inovector

📅 Schedule, 📢 publish, and ⚡ manage your social media content on your server. No subscriptions, no limits. (Buffer alternative)

Complete system Usable You want a self-hosted Buffer alternative and already run Laravel or PHP hosting.

★ 3.9k MIT Vue Slowing, pushed 8 months ago

Caniemail hteumeuleu

Can I email… Support tables for HTML and CSS in emails.

List, course or other material Production-ready You write HTML emails and need to check whether a feature works in Outlook, Gmail and others.

★ 948 MIT HTML Active, pushed 2 months ago

Digital Marketing Pro indranilbanerjee

An open-source AI based digital marketing operating system for strategy, SEO, AEO/GEO, paid media, content, CRM, and analytics - grounded in brand context, human approval, and verifiable outputs. Best for Brands, Agencies and one person campanies.

Integration Experimental A marketer or small agency already works in an AI coding agent and wants structured marketing playbooks inside it.

★ 916 MIT Python Active, pushed 4 days ago

Notifo notifo-io

Multi channel notification service for collaboration tools, e-commerce, news service and more.

Complete system Usable Your product needs user notifications across channels and you want a self-hostable service rather than building one.

★ 883 MIT C# Active, pushed 43 days ago

Phplist3 phpList

Fully functional Open Source email marketing manager for creating, sending, integrating, and analysing email campaigns and newsletters.

Complete system Production-ready You want a proven self-hosted newsletter tool on ordinary PHP hosting.

★ 877 AGPL-3.0 PHP Active, pushed 14 days ago

SEOnaut StJudeWasHere

Open source SEO audit tool.

Complete system Usable You want a free, self-hosted alternative to Screaming Frog-style site audits.

★ 853 MIT Go Active, pushed 25 days ago

OpenPost getopenpost

Create, adapt, schedule, and track social posts. Open-source, hosted or self-hosted.

Complete system Experimental A small team wants Buffer plus basic Canva and CapCut features under its own control.

★ 845 AGPL-3.0 TypeScript Active, pushed 2 days ago

TryPost trypostit

Open-source social media scheduler built for AI agents and the teams behind them. Create, schedule and publish posts to every network through MCP or the REST API, or write them yourself in a composer your team will love.

Complete system Usable Your team wants agents to queue social posts while people review them, on your own server.

★ 764 AGPL-3.0 PHP Active, pushed 6 days ago

Instagram-skills sergebulaev

Instagram marketing skills for Claude Code and Codex: captions, carousels, hooks, hashtag strategy, and a weekly plan. Draft, humanize, and publish via Publora. MIT. Content engineering by Creative Content Crafts.

Integration Experimental You already use Claude Code or Codex and want help producing Instagram content.

★ 682 MIT Python Active, pushed 6 days ago

Django CRM DjangoCRM

CRM and Task management software, Email marketing and many more. Django CRM software app is built for individual use by businesses of any size or freelancers and is designed to provide easy customization and quick development. ✨

Complete system Usable A small business with Python skills wants a CRM it can customise directly in Django admin.

★ 651 AGPL-3.0 Python Active, pushed yesterday

Posta goposta

Self-hosted email delivery platform that enables applications to send emails via HTTP APIs while handling SMTP delivery, templates, storage, security, and analytics. Fully self-hostable alternative to services like SendGrid or Mailgun.

Complete system Experimental You want your apps' transactional email behind one self-hosted API with logs and templates.

★ 633 AGPL-3.0 Go Active, pushed yesterday

Line-harness-oss Shudesu

L Harness — self-hosted LINE Official Account CRM: step messaging, broadcasts, forms and reservations, with MCP and TypeScript SDK. By Shudesu (野田修一).

Complete system Experimental A Japanese business markets through LINE and wants to own its customer data instead of paying for L-step-style tools.

★ 601 MIT TypeScript Active, pushed 22 days ago

Ai-business-skills minhnv0807

138 bilingual AI marketing skills (69 VN + 69 Global) for Claude Code, OpenCode, Codex, VS Code. Four role SOP packs — content, design, performance, leader ops — plus strategy, personal brand, AI avatar, dropshipping, design master, knowledge library. 4 regions (US/EU/SEA/LATAM) + Vietnam 2025-2026. Companion: opa-kit.

List, course or other material Experimental A Vietnamese or Southeast Asian marketer wants ready-made prompts inside Claude Code or similar tools.

★ 575 MIT PowerShell Active, pushed 2 months ago

Mrml jdrouet

Implementation of mjml in rust

Building block Usable You render MJML at high volume or outside Node.js and want speed.

★ 510 MIT HTML Active, pushed 17 days ago

Warmbly warmbly

The largest open-source B2B cold outreach and email warmup service.

Complete system Experimental A B2B sales team wants self-hosted cold outreach instead of Instantly or Lemlist.

★ 492 Apache-2.0 Go Active, pushed 6 days ago

AutoSocial Katzca

Local social media automation dashboard for TikTok, Instagram, and YouTube.

Complete system Experimental A creator managing several accounts wants local scheduling without a paid tool and accepts automation risks.

★ 1.4k MIT JavaScript Slowing, pushed 5 months ago

Larasend savvyagents

Self-hosted transactional email platform — send through your own AWS SES account, keep the dashboard, API keys, delivery logs, and webhooks on your own infrastructure.

Complete system Experimental A Laravel team wants Resend-style tooling while keeping data and costs on its own SES account.

★ 440 MIT PHP Active, pushed 3 months ago

Colspan colspan-dev

Open source drag & drop builder for HTML emails that hold together in every inbox

Complete system Usable Marketers want to assemble email layouts visually without paying for a hosted builder.

★ 428 AGPL-3.0 TypeScript Active, pushed 4 days ago

Elements unlayer

React components for transactional emails, landing pages, invoices and PDFs: email-safe HTML, responsive web HTML, and print-ready PDF HTML from one component tree.

Building block Experimental You produce emails, invoices and documents from React and want one set of components for all of them.

★ 423 MIT TypeScript Active, pushed 13 days ago

Snooze thomasjohnkane

A package to simplify automating future notifications and reminders in Laravel

Building block Production-ready Your Laravel app sends time-based reminders and the delayed queue is not enough.

★ 937 MIT PHP Slowing, pushed 7 months ago

Email Marketing Bible CosmoBlk

Email marketing skill for Claude Code. 88K words, 908 sources, 19 industry playbooks. Install the skill and Claude becomes your email marketing expert.

List, course or other material Usable You want an AI assistant to draft email flows using a curated body of email marketing practice.

★ 330 MIT Active, pushed 24 days ago

Facebook-ads-library-mcp proxy-intell

MCP Server for Facebook ADs Library - Get instant answers from FB's ad library

Integration Usable You research competitor ads and want to ask questions about them from Claude or ChatGPT.

★ 319 MIT Python Active, pushed 9 days ago

Sympa sympa-community

Sympa, Mailing List Management Software

Complete system Production-ready An institution needs many discussion or announcement lists with delegated management.

★ 315 GPL-2.0 Perl Active, pushed 3 months ago

SendPortal Core mettle

Core functionality for SendPortal

Building block Usable You want SendPortal's campaign features inside your own Laravel application rather than as a standalone install.

★ 299 MIT PHP Active, pushed 21 days ago

SeaLeap Amazon Skills xjli360

Reusable Agent Skills for Amazon product research, listings, advertising, inventory, and operations.

List, course or other material Experimental A Chinese-speaking Amazon seller wants structured playbooks to feed an AI agent.

★ 298 MIT Python Active, pushed 18 days ago

Mjml.Net SebastianStehle

.NET Fork of MJML library with 10x performance and 100% feature parity

Building block Usable A .NET application renders MJML emails and you want to avoid a Node dependency.

★ 271 MIT C# Active, pushed 2 months ago

MillionSend MillionSend

The open-source email platform — self-host on your own AWS SES, or use the cloud. Resend-compatible API.

Complete system Experimental You use Resend's API but want to self-host on SES to cut costs.

★ 258 AGPL-3.0 TypeScript Active, pushed 6 days ago

EmailFlare 0xdps

Self-hosted email sending platform built on Cloudflare Email Sending — REST API, admin UI, templates, domain management, scoped API keys, all in one Docker container.

Complete system Experimental You already use Cloudflare and want a small self-hosted sending service on it.

★ 255 MIT TypeScript Active, pushed 19 days ago

CogSend cogsend

Self-hosted social media scheduler. Write once, publish to any connected platform. Runs on your own Cloudflare account.

Complete system Experimental You want cheap self-hosted scheduling without managing a server and already use Cloudflare.

★ 253 MIT TypeScript Active, pushed 11 days ago

Thinkwithblack-skill backtrue

365 free AI marketing skills (zh-TW/en) for ChatGPT, Claude, Gemini, Claude Code & Cursor — copywriting, ads budget, margin, CRM, email. 365 個免費 AI 行銷 Skills

List, course or other material Experimental A Taiwanese or Chinese-speaking marketer wants a large set of ready prompts.

★ 249 MIT Python Active, pushed yesterday

Growth-engineer GetBrew

Open-source catalog of go-to-market tools and workflows, written as markdown files any agent can run. Includes a read-only MCP server.

List, course or other material Experimental You use AI agents for sales and marketing work and want a reference of which tools can do what.

★ 246 MIT TypeScript Active, pushed 22 days ago

Business-leads-ai-automation asiifdev

Open-source AI sales & marketing OS: find leads, draft outreach in your own voice, approve, close. Self-host or use alatpintar.id

Complete system Experimental A small agency, especially in Indonesia, wants self-hosted lead finding and outreach drafting.

★ 227 AGPL-3.0 TypeScript Active, pushed 8 days ago

EmailSpellChecker smashsend

📮 An ultratiny (1.9 KB) and fast JavaScript email checker to reduce users typing a wrong email. Written in TypeScript. Enterprise-grade.

Building block Usable Your sign-up forms collect emails and you want fewer bounced addresses.

★ 217 MIT TypeScript Active, pushed 3 months ago

Posthorn craigmccaskill

Self-hosted email gateway between your apps and a transactional mail provider (Postmark, Resend, Mailgun, AWS SES, or outbound-SMTP). Three ingress shapes (HTTP form, HTTP API, SMTP). One Docker container, one TOML config.

Integration Usable A homelab or small team runs several apps that each need outbound email and wants one place to configure it.

★ 215 Apache-2.0 Go Active, pushed 19 days ago

SandBase Skills sandbaseai

88 installable open-source Agent Skills for research, social intelligence, marketing, and business workflows—compatible with Codex, Claude Code, Cursor, Gemini CLI, and DeepSeek Harness.

List, course or other material Experimental You use an AI coding agent for market research and want ready-made skill files to try.

★ 202 Apache-2.0 Python Active, pushed 38 days ago

Mailtrain Mailtrain-org

Self hosted newsletter app

Complete system Usable Only if you already run it; listmonk is a better-maintained choice for new setups.

★ 5.8k GPL-3.0 JavaScript Quiet, pushed 13 months ago

Rudder-sdk-js rudderlabs

JavaScript SDK for RudderStack - the Customer Data Platform for Developers.

Integration Production-ready You use RudderStack, or want a Segment-compatible tracking API, and need browser event collection.

★ 179 MIT TypeScript Active, pushed 3 days ago

Senlo IgorFilippov3

Open-source, self-hosted & provider-agnostic email infrastructure.

Complete system Experimental A product team wants its email templates and sending logic in its own system rather than in a vendor's dashboard.

★ 177 AGPL-3.0 TypeScript Active, pushed 15 days ago

OpenEMM agnitas-org

Web-based software for email automation and marketing (newsletters, multi-stage mail campaigns, transaction mails, autoresponder, etc.)

Complete system Production-ready A European organisation wants self-hosted, GDPR-friendly email marketing with a commercial vendor behind it.

★ 169 AGPL-3.0 JavaScript Active, pushed 17 days ago

X-skills sergebulaev

X (Twitter) marketing skills for Claude Code and Codex: write tweets, threads, and replies in your voice, strip AI tells, and publish via Publora. Open source, MIT. Content engineering by Creative Content Crafts.

Integration Experimental You use Claude Code or Codex and want help drafting and posting on X.

★ 163 MIT Python Active, pushed 5 days ago

Caffeinate joshmn

A Rails engine for drip campaigns/scheduled sequences and periodical support. Works with ActionMailer, and other things.

Building block Usable Your Rails app needs onboarding or nurture email sequences defined in code.

★ 386 MIT Ruby Slowing, pushed 9 months ago

Insta-p8 ayuuxh2

Open-source ManyChat alternative for Instagram DM, comment, story automation and AI replies. Self-hosted with Next.js + Supabase. https://t.me/instagramautomationp8

Complete system Experimental A creator or small brand wants ManyChat-style Instagram automation without the subscription.

★ 156 MIT TypeScript Active, pushed 11 days ago

Catapulte jdrouet

Rust implementation of catapulte email sender

Complete system Usable You want a small self-hosted service that renders MJML templates and sends them for your apps.

★ 153 AGPL-3.0 Rust Active, pushed 39 days ago

Mjml_nif adoptoposs

Elixir NIF bindings for the MJML Rust implementation (mrml)

Building block Usable Your Elixir or Phoenix app sends MJML emails and you want them compiled natively.

★ 144 MIT Elixir Active, pushed 5 days ago

GTM Cheat Codes zapier

A field guide for go to market teams using coding agents. Installable skills for campaign planning, CRM context, customer proof, and reviewable agent workflows.

List, course or other material Usable Your sales or marketing team is starting to use coding agents and wants worked examples.

★ 336 MIT Slowing, pushed 4 months ago

Gomjml preslavrachev

A native Go implementation of the MJML email framework, providing fast compilation of MJML markup to responsive HTML.

Building block Usable A Go service renders MJML emails and you want no Node or WebAssembly runtime.

★ 125 MIT Go Active, pushed 40 days ago

Mjml-php spatie

Convert MJML to HTML using PHP

Building block Production-ready Your PHP or Laravel app builds emails in MJML and you can install Node on the server.

★ 283 MIT PHP Slowing, pushed 3 months ago

On-Page SEO AgriciDaniel

On-Page SEO Analyzer - Analyze your website's SEO performance

Complete system Experimental You want a free on-page SEO checker to run yourself and can host a small TypeScript app.

★ 274 MIT TypeScript Slowing, pushed 5 months ago

Mjml-python mgd020

A python library for MJML - a framework that makes responsive-email easy

Building block Usable A Python or Django app renders MJML emails and you want it fast and dependency-light.

★ 110 MIT Python Active, pushed 2 months ago

Automated-business-analysis-workflow AgriciDaniel

n8n workflow - Scrapes any URL, uses AI to generate a comprehensive business analysis report. Ideal for agencies and freelancers.

Template or starter Experimental An agency or freelancer already runs n8n and wants a starting point for prospect research reports.

★ 225 MIT Slowing, pushed 7 months ago

Angular Email Editor unlayer

Drag-n-Drop Email Editor Component for Angular

Integration Usable You are adding a visual email builder to an Angular product and accept Unlayer's terms.

★ 222 MIT TypeScript Slowing, pushed 7 months ago

Openquok-monorepo Ratimon

All-in-one Content OS: social scheduling and directory launch in one workspace. Calendar, kanban, and product profiles. Extension autofill for directory listings; you approve every post and submit. Agents via CLI, MCP, and public API. Cloud or self-host.

Complete system Experimental An indie maker launches products often and wants scheduling and directory submissions in one place.

★ 96 AGPL-3.0 TypeScript Active, pushed 11 days ago

Mjml-react wix-incubator

React component library to generate the HTML emails on the fly

Building block Usable Only for legacy code already using it.

★ 998 MIT JavaScript Quiet, pushed 4 years ago

MJML App mjmlio

:email: The desktop app for MJML

Developer tool Usable Rarely now; the official editor plugins and online tools are maintained.

★ 846 MIT JavaScript Quiet, pushed 4 years ago

MjmlBundle notFloran

✉️ Symfony bundle for MJML

Integration Usable Your Symfony app sends MJML-based emails.

★ 116 MIT PHP Slowing, pushed 6 months ago

37Studio Shaitrish

Open-source AI alternative to Buffer and Opus Clip: Claude Code makes on-brand videos, posts them to 9 platforms and drafts replies. Self-hosted, your own keys.

Complete system Experimental A small business already uses Claude Code and wants to experiment with AI-made social video.

★ 56 MIT Go Active, pushed 9 days ago

Colossus vitorfs

Self-hosted email marketing solution

Complete system Experimental Only if you want a small Django codebase to adapt.

★ 576 MIT Python Quiet, pushed 3 years ago

Candymail bdcorps

Email Automations for Node.js

Building block Experimental Rarely; it has been idle since 2022.

★ 315 MIT TypeScript Quiet, pushed 5 years ago

LinkedIn Scraper TufayelLUS

A LinkedIn Scraper to scrape up to 1k LinkedIn profiles(due to LinkedIn limit) from company profile links and save their e-mail addresses if available! (actively maintained, if anything doesn't work, open an issue in the repo)

Developer tool Experimental Hard to recommend; scraping LinkedIn is the core of what it does.

★ 296 GPL-3.0 Python Quiet, pushed 16 months ago

Rss2newsletter ElliotKillick

Convert RSS/Atom feed to email newsletters

Developer tool Experimental A blogger wants a free RSS-to-email newsletter and is comfortable running a script.

★ 282 AGPL-3.0 Python Quiet, pushed 2 years ago

Gulp MJML mjmlio

Add Gulp to your MJML workflow!

Developer tool Usable You still build email templates with Gulp.

★ 159 MIT JavaScript Quiet, pushed 4 years ago

GlowLabs amamenko

MERN stack application for appointment booking and employee/client management

Template or starter Experimental You want to study a full MERN booking app as a reference.

★ 131 MIT JavaScript Quiet, pushed 4 years ago

Mjml-go Boostport

Compile MJML to HTML directly in your Go applications!

Building block Usable You need exact MJML output in Go and prefer the official code over a reimplementation.

★ 120 Apache-2.0 Go Quiet, pushed 15 months ago

Wagtail-birdsong neon-jungle

Create, send, preview, edit and test email campaigns from within Wagtail

Integration Experimental Your site runs on Wagtail and editors want to send newsletters from the same admin.

★ 113 BSD-3-Clause Python Quiet, pushed 2 years ago

Mjml-utils justinsisley

The utility belt for MJML developers

Developer tool Experimental Rarely; it has been idle since 2018.

★ 111 MIT JavaScript Quiet, pushed 9 years ago

GTM Skills explorium-ai

GTM Skills for Claude & Codex

Integration Usable Your sales team uses AI agents for outbound and is willing to use Explorium's data.

★ 2 MIT TypeScript Slowing, pushed 3 months ago

Substack Substack Inc.

American online newsletter platform

Complete system Production-ready A writer wants to start a free or paid newsletter at no upfront cost and benefit from Substack's discovery network.

25k readers a month Since 2017 Commercial

Braze Braze, Inc.

Power customer-centric interactions between consumers and brands in real-time.

Complete system Production-ready A large consumer app or brand needs real-time lifecycle messaging driven by app behaviour.

1.1k readers a month Since 2011 Commercial

Mailchimp Intuit

Utilize real-time user behavior data and artificial intelligence to convert more customers. Easy to use, get started for free!

Complete system Production-ready A small business or nonprofit wants a familiar email newsletter tool with lots of templates.

1k readers a month Since 2001 Commercial

Klaviyo Klaviyo

Klaviyo unifies marketing and service with its AI-first B2C CRM. Try our omnichannel marketing software, powered by K:AI agents to deliver personalised experiences across email marketing, WhatsApp and more.

Complete system Production-ready A Shopify or other online store wants purchase-driven email and SMS marketing.

839 readers a month Since 2012 Commercial

Sprinklr Sprinklr

Unify customer journeys with Sprinklr’s AI-native platform. Connect every touchpoint, empower teams, and elevate conversations to earn lasting loyalty.

Complete system Production-ready A global brand needs social, care and listening across many regions and teams in one platform.

581 readers a month Since 2009 Commercial

Hootsuite Hootsuite

Hootsuite is a social media management tool that brings scheduling, content creation, analytics, and social listening to one place.

Complete system Production-ready A marketing team manages many brand accounts across networks and needs approvals and reporting.

360 readers a month Since 2008 Commercial

Constant Contact Constant Contact

With Constant Contact, you can create effective email marketing and online marketing campaigns to meet your business goals. Start your FREE trial today!

Complete system Production-ready A local small business or nonprofit wants simple email newsletters and values phone support.

286 readers a month Since 1995 Commercial

SendGrid Twilio

SendGrid's trusted email API and marketing campaigns platform is now available through Twilio.com.

Building block Production-ready An application needs to send high volumes of email through a well-known API.

283 readers a month Since 2009 Commercial

Sprout Social Sprout Social

Maximize your social ROI with Sprout Social, trusted by 30k+ brands. Power everything from publishing and engagement to analytics and influencer marketing. Try 30 days free.

Complete system Production-ready A midsize marketing or customer care team needs strong social reporting and engagement workflows.

221 readers a month Since 2010 Commercial

Brevo Brevo

Brevo is the most intuitive all-in-one customer engagement platform: email and SMS marketing, automation, CRM, live chat, and transactional email. Try it free.

Complete system Production-ready A small business, especially in Europe, has a large contact list but sends infrequently.

208 readers a month Since 2012 Commercial

Amazon SES Amazon Web Services

Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service provider that allows developers to send email from within any application.

Building block Production-ready You send large volumes of email, run on AWS and can manage deliverability yourself.

Commercial

Buffer Buffer

Use Buffer to manage your social media so that you can create and share your content everywhere, consistently. Try our forever free plan or upgrade for more.

Complete system Production-ready A small business or creator wants to queue posts across a handful of channels without paying much.

135 readers a month Since 2010 Commercial

HubSpot Marketing Hub HubSpot, Inc.

Complete system Production-ready A small or midsize B2B company wants inbound marketing and lead nurturing in the same system as sales.

Commercial

ActiveCampaign ActiveCampaign

Go beyond marketing automation with ActiveCampaign's autonomous marketing platform. Your team of AI agents handles email, SMS, WhatsApp and more for you, backed by billions of data points.

Complete system Production-ready A small or midsize business wants sophisticated email automation at a price below HubSpot.

68 readers a month Since 2003 Commercial

Mailgun Sinch

Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!

Building block Production-ready Developers need to send transactional email and also parse inbound email into their application.

64 readers a month Since 2010 Commercial

Adobe Marketo Engage Adobe Inc.

Complete system Production-ready A large B2B marketing team needs complex lead management and has marketing operations specialists.

Commercial

Customer.io Customer.io

Customer.io is a customer engagement platform for creating personalized journeys and better business outcomes across email, push, SMS, and in-app messaging.

Complete system Production-ready A SaaS or app company wants lifecycle messaging triggered by product events and has developers to send the data.

Commercial

Iterable Iterable

Iterable is an AI customer engagement platform built for how customers behave today, helping brands respond in real time with unified data and optimization.

Complete system Production-ready A midsize to large consumer brand wants Braze-class journeys with a strong email focus.

Commercial

Keap Keap

Keap is the leading small business CRM and automation platform built exclusively to help small businesses save time and grow without the chaos.

Complete system Production-ready A solo operator or small service business wants CRM, email campaigns and payments in one tool.

Commercial

Oracle Eloqua Oracle Corporation

Complete system Production-ready A large B2B enterprise, often on Oracle CX, needs complex campaign orchestration across regions.

Commercial

Kit Kit

Kit (formerly ConvertKit) is the creator-first email marketing and newsletter platform. Grow your audience, automate campaigns, and sell without burnout.

Complete system Production-ready A creator or solo educator wants to grow a newsletter and sell digital products to subscribers.

Commercial

Campaign Monitor Marigold

Create, send, and optimize email campaigns with Campaign Monitor. Build audiences, automate journeys, and improve results with our best-in-class software.

Complete system Production-ready An agency or design-conscious brand wants well-designed email campaigns without enterprise complexity.

Commercial

MailerLite MailerLite

Digital marketing tools to grow your audience faster and drive revenue smarter. Backed by 24/7 award-winning support. Check it out now!

Complete system Production-ready A small business or creator wants capable email marketing at a low price.

Commercial

AWeber AWeber

Looking for free email marketing software? Get started with AWeber for free today. Powerfully-simple email marketing.

Complete system Production-ready A small business wants straightforward autoresponder email with phone and chat support.

Commercial

beehiiv beehiiv

beehiiv is the newsletter platform built for creators, publishers, and businesses. Grow, publish, and monetize your audience in one place.

Complete system Production-ready A newsletter writer or publisher wants growth and monetisation tools while keeping their own brand and list.

Commercial

Omnisend Omnisend

Complete system Production-ready A small online store wants e-commerce email and SMS at a lower price than Klaviyo.

Commercial

Postmark ActiveCampaign

Send transactional and marketing emails and get them to the inbox on time, every time. Postmark is a fast and reliable email delivery service for developers.

Building block Production-ready Password resets, receipts and other critical app email must arrive quickly and reliably.

Commercial

Resend Resend

The best way to reach humans instead of spam folders. Deliver transactional and marketing emails at scale.

Building block Usable A modern web app team, especially using React and Next.js, wants a clean email API that is quick to integrate.

Commercial

Later Later

Influencer marketing built for creators and trusted by brands. Run campaigns, manage social media, and track performance with AI-powered insights.

Complete system Production-ready A brand or creator focused on Instagram and TikTok wants visual planning and influencer campaigns.

Commercial

Agorapulse Agorapulse

An easy to use Social Media Management Software that allows you to stay organized, save time, and easily manage your inbox, publishing, reporting, monitoring, and team collaboration tools.

Complete system Production-ready An agency or small marketing team wants inbox-first social management at a mid-range price.

Commercial