OpenSourceProjects

Open Source Twilio Alternatives

Discover 10 open source alternatives to Twilio. All free, community-driven, and actively maintained.

What is Twilio?

Cloud communications platform for sending SMS, voice calls, and video messages via APIs.

novu

novu

The open-source notification infrastructure. In-app Inbox component, E-mail, SMS, Push and Slack Integrations.

ntfy

ntfy

Send push notifications to your phone or desktop using PUT/POST

Push Notifications

server

server

A simple server for sending and receiving messages in real-time per WebSocket. (Includes a sleek web-ui)

janus-gateway

janus-gateway

Janus WebRTC Server

freeswitch

freeswitch

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a versatile software implementation that runs on any commodity hardware. From a Raspberry PI to a multi-core server, FreeSWITCH can unlock the telecommunications potential of any device.

asterisk

asterisk

The official Asterisk Project repository.

anycable

anycable

Realtime server for reliable two-way communication to power-up any backend

livehelperchat

livehelperchat

Live Helper Chat - live support for your website. Featuring web and mobile apps, Voice & Video & ScreenShare. Supports Telegram, Twilio (whatsapp), Facebook messenger including building a bot.

routr

routr

⚡ The future of programmable SIP servers.

opensips

opensips

OpenSIPS is a GPL implementation of a multi-functionality SIP Server that targets to deliver a high-level technical solution (performance, security and quality) to be used in professional SIP server platforms.