Top 12 Open-Source Alternatives to Bandwidth

The top open-source alternatives to Bandwidth are Twilio, MirrorFly, and SignalWire. 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
SignalWire Landing Page
3

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
CometChat Landing Page
4

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
Bitrix24 Landing Page
5

Bitrix24

Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
Pricing:
- Open Source
- Freemium
- Free Trial
- $69.0 / Monthly (6 users / 50 GB / CRM+)
#Project Management #Task Management #Communication
Melrose Labs SMSC Simulator Landing Page
6

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
7

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
#Communication #Messaging #Cpaas
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 128 social mentions
GuniSMS Landing Page
9

GuniSMS

Fastest & Affordable SMS Marketing Solutions
Pricing:
- Open Source
- Freemium
- Free Trial
- AU$16.0 / Monthly
#Business Text Messaging #SMS Marketing #Sms Gateway
ITG VoIP Plug & Play Landing Page
10

ITG VoIP Plug & Play

A business telephone system ready to use in three easy steps: 1. Choose a call plan 2. Get all features 3. Choose a phone
Pricing:
- Open Source
- Paid
- £9.99 / Monthly (Unlimited UK landline)
#Enterprise Communication #VoIP #Communication
CloudTalk Landing Page
11

CloudTalk

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

Signal

Fast, simple & secure messaging. Privacy that fits in your pocket.
Pricing:
- Open Source
#Communication #Group Chat & Notifications #Messaging 180 social mentions