Top 12 Open-Source Alternatives to Nexmo

Nexmo

Nexmo is a simple two way SMS API with global reach and wholesale rates

Status Page

Product categories

Chat SDK Cloud Contact Center Communication Customer Engagement Enterprise Communication Instant Messaging Messaging Telecommunications Text Messaging Video Conferencing VoIP Web And Video Conferencing

Summary

The top open-source alternatives to Nexmo are Twilio, MirrorFly, and RingCentral. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Twilio Landing Page
1

Twilio

Brings voice and messaging to your web and mobile applications.
Pricing:
- Open Source
#Communication #Cloud Communications #Customer Engagement
MirrorFly Landing Page
2

MirrorFly

World's Most Scalable Voice, Video & Chat SDK for Small, Medium & Enterprises
Pricing:
- Open Source
- Paid
- Free Trial
#Communication #Chat SDK #Group Chat & Notifications 8 user reviews
RingCentral Landing Page
3

RingCentral

RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Pricing:
- Open Source
- Freemium
- Free Trial
- $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)
#Communication #VoIP #Cloud Contact Center 3 social mentions
httpsms.com
4

httpSMS

Convert your Android phone into an SMS gateway to send an receive text messages
Pricing:
- Open Source
- Freemium
- $10.0 / Monthly (5000 SMS per month)
#Communication #Text Messaging #SMS
Melrose Labs SMSC Simulator Landing Page
5

Melrose Labs SMSC Simulator

SMPP SMSC simulator to test SMS messaging applications.
Pricing:
- Open Source
- Freemium
- Free Trial
#Messaging #Communication #Text Messaging
OpenTok Landing Page
6

OpenTok

Build a custom video experience using our robust APIs, or add plug-and-play video to your website in minutes using Video Chat Embeds. Start Building for FreeTalk to SalesTalk to Sales .
Pricing:
- Open Source
#Messaging #Communication #Cpaas
SignalWire Landing Page
7

SignalWire

A next-generation communications API and collaboration platform. Powered by a global elastic cloud network featuring APIs for video, voice, messaging, and collaboration products like SignalWire Work, SignalWire Events, and more.
Pricing:
- Open Source
- Paid
- Free Trial
#Telecommunications #Web And Video Conferencing #Video Conferencing 3 social mentions
Telegram Landing Page
8

Telegram

Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Pricing:
- Open Source
#Communication #Messaging #Instant Messaging 129 social mentions
CometChat Landing Page
9

CometChat

Seamless Real-Time Chat Integration for Your Applications.
Pricing:
- Open Source
- Freemium
- Free Trial
- $109.0 / Monthly (Based on the Monthly Active Users (MAUs))
#Chat SDK #Communication #Voice And Messaging API 4 social mentions
Asterisk Landing Page
10

Asterisk

An open source telephony switching and private branch exchange service for Linux.
Pricing:
- Open Source
#Communication #VoIP #Enterprise Communication 4 social mentions
CloudTalk Landing Page
11

CloudTalk

Work locally, grow globally
Pricing:
- Open Source
- Paid
- Free Trial
- $25.0 / Monthly
#Communication #Enterprise Communication #Call Center Software
Chat by Stream Landing Page
12

Chat by Stream

Build and ship in app messaging in a few hours
Pricing:
- Open Source
#Communication #Chat SDK #Prototyping 13 social mentions