The open-source communication infrastructure for agents and products
- notifications
- communication
- sms
Repository Index
84,085 visible repositories in the index
1–24 of 105 · Most stars
High performance, self-hosted, newsletter and mailing list manager with a modern dashboard. Single binary app.
- email-marketing
- newsletter
- newsletter-management
- mailing-list
The classic email sending library for PHP
✉️ Send e-mails with Node.JS – easy as cake!
- nodemailer
- email-sender
- rfc822
Countly is a privacy-first, AI-powered analytics and engagement platform for understanding and optimizing customer journeys across digital applications, from desktop and mobile to IoT and connected environments.
- web-analytics
- dashboard
- mobile-analytics
- analytics
The Open-Source Email Platform
GOWA - WhatsApp REST API with support for UI, Multi Account, Webhooks, and MCP, and Chatwoot. Built with Golang for efficient memory use.
- whatsapp-api
- whatsapp-api-go
- golang
🖥️📱🔔 A utility for sending notifications, on demand and when commands finish.
Open source alternative to Resend, Sendgrid, Postmark etc.
- postmark
- resend
- sendgrid
The best way to send emails in Go.
TranslatedA small but beautiful tool focused on batch pushing. Currently supports: template messages - WeChat Official Account, template messages - Mini Program, WeChat customer service messages, WeChat Work (Enterprise WeChat) messages, Alibaba Cloud SMS, Alibaba Dayu template SMS, Tencent Cloud SMS, Yunpian SMS, E-Mail, HTTP requests, DingTalk, Huawei Cloud SMS, Baidu Cloud SMS, Upyun SMS, Qiniu Cloud SMS
A dead simple Go library for sending notifications to various messaging services.
搭建专属于你的消息推送服务，支持多种消息推送方式，支持 Markdown，基于 Golang 仅单可执行文件，开箱即用
- dingtalk
- lark
- bark
Create, preview (browser/iOS Simulator), and send custom email templates for Node.js. Made for @forwardemail, @ladjs, @cabinjs, @spamscanner, and @breejs.
A Really Ruby Mail Library
Build, test, send emails with React
Open-source SMS gateway. Turn your Android phone into an SMS API: send and receive SMS from your apps over REST and webhooks. Self-hostable, with a free hosted plan.
- gateway
- sms
- sms-gateway
- foss
All in one email sender for .NET. Supports popular senders (SendGrid, MailGun, etc) and Razor templates.
- c-sharp
- dotnet
- dotnetcore
Open-source customer engagement. Automate transactional and marketing messages across email, SMS, mobile push, WhatsApp, Slack, and more 📨
- open-source
- typescript
- javascipt
- customer-engagement
The Official Twilio SendGrid Led, Community Driven Node.js API Library
Send emails from your terminal 📬
Robust and flexible email library for Go
Free Chat SDK (IM SDK) — 1,000 MAU/month free forever with push notifications & no concurrency limits. Build in-app messaging with chat API, UIKit & send message. Supports Android, iOS, Flutter, Web, React Native, uni-app, HarmonyOS & more.
- android
- chat-api
- chat-sdk
- chat-uikit
A collection of badass modules and utilities to help you level up your NestJS applications 🚀
- nestjs
- microservices
- typescript
- javascript