Plunk
The Open-Source Email Platform
Transactional Messaging
Compare healthier or more active tools in the same use case using ToolVitals public evidence.
Why compare
Switching guide
Useful when portability and inspectability matter.
Ranked alternatives
The Open-Source Email Platform
Self-hosted WhatsApp API gateway.
A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)
WPPConnect is an open source project developed by the JavaScript community with the aim of exporting functions from WhatsApp Web to the node, which can be used to support the creation of any interaction, such as customer service, media sending, intelligence recognition based on phrases artificial and many other things, use your imagination
open-source sms-gateway. turn any android phone into an sms gateway
Privacy-focused encrypted email service.
AWS Email, SMS, and CDN tools.
Open-source, self-hosted newsletter, email marketing and transactional email platform. Visual MJML editor, Liquid templating, 7 sending providers.
Self-hostable email archive.
Email infrastructure for agent and indie devs.
Self-hosted email sending platform built on Cloudflare Email Sending.
Open source alternative to Resend, Sendgrid, Postmark etc.