The best open source alternative to Twilio is Wazo. If that doesn't suit you, our users have ranked more than 100 alternatives to Twilio and eight of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to Twilio are Fonoster, Whapi.Cloud, textbee.dev and SMSGate App.
Wazo is mainly an IPBX that provides communication services such audio, video, and instant messaging based on the use of standard network technologies such as the TCP/IP protocol. It is interoperable with most market telephony systems and gives users access to flexible and...
Delivers easy WhatsApp integration for developers via a REST API. Features include CRM, ERP support, detailed tutorials, JSON compatibility and comprehensive support for novice to experienced programmers.
textbee.dev is an open-source SMS gateway that enables users to send and receive SMS messages via a web dashboard or a REST API. Perfect for businesses, developers, and hobbyists who need a reliable and cost-effective way to automate SMS messaging.
A secure, open-source solution for sending and receiving SMS messages via Android devices. No registration, email, or phone number required - just install and use.
XiVO is an IP-PBX, a unified communications platform that connects phones on a local or private network with other networks such as public landlines and mobile telephones.
Started as a reimplementation of the open source Plivo Framework (unmaintained as of 2015), Eqivo simplifies the integration between web applications and voice-enabled endpoints, such as traditional phone lines (PSTN), VoIP phones, webRTC clients etc.
httpSMS is a service that lets you use your Android phone as an SMS Gateway to send and receive SMS messages. You make a request to a simple HTTP API and it triggers your Android phone to send an SMS. SMS messages received on your android phone can also be forwarded to your...
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