Discover top business communication platforms. Compare messaging, calling, and collaboration tools by pricing and reviews.
123 tools
Tools in Communication
RingCentral — RingCentral is a publicly traded, Belmont, California-based provider of AI-powered cloud business communications, offering phone, messaging, video meetings, and contact center software under its RingEX (formerly RingCentral MVP) platform.
Dialpad — Dialpad is an AI-powered business communications platform offering cloud VoIP calling, video meetings, messaging, and an AI-driven contact center built on Google Cloud.
Aircall — Aircall is a cloud-based business phone system with AI voice agents, call coaching, and CRM integrations for sales and support teams.
OpenPhone — OpenPhone is a modern, VoIP-based business phone system for startups and small teams, offering shared phone numbers, calling, texting, and AI-powered call features; the company rebranded to Quo in late 2025.
Zoom Phone — Cloud-based business phone system (VoIP) from Zoom offering metered or unlimited calling plans, auto-attendants, call queues, and AI call summaries.
8x8 — 8x8 is a cloud communications platform providing business phone (UCaaS), contact center (CCaaS), video meetings, and messaging APIs (CPaaS) for companies of all sizes.
Vonage — Vonage is a cloud communications provider offering business VoIP phone systems, contact center software, and programmable communications APIs for voice, SMS, video, and messaging.
Nextiva — Nextiva is a cloud-based unified communications and customer experience platform offering VoIP business phone, video, SMS, and contact center tools for small businesses through enterprises.
Flock — Flock is a team messaging and collaboration app offering channel-based chat, video calls, shared to-dos and third-party app integrations, marketed as an affordable Slack alternative for businesses.
Chanty — Chanty is a team chat and collaboration app combining messaging, voice/video calls, and built-in task management for small and mid-sized teams.
Superhuman — Superhuman is a premium, AI-powered email client for Gmail and Outlook that focuses on speed, keyboard shortcuts, and inbox-zero workflows for professionals and sales teams.
Spark Mail — Spark Mail is an AI-powered email client from Readdle that offers a Smart Inbox, team collaboration, and AI writing and meeting-notes features across desktop and mobile.
Missive — Missive is a shared team inbox and internal chat platform that lets teams collaborate on email, SMS, and social messages from a single app.
Spike — Spike is an AI-powered email and productivity app that turns cluttered inboxes into a chat-like conversational interface, combining email, team messaging, docs, and video calls in one place.
Twist — Twist is an asynchronous, thread-based team communication app made by Doist, the creator of Todoist, built as a deliberate alternative to real-time chat.
Threads — Threads is Meta's free text-based social networking app built by the Instagram team, launched in July 2023 to let users share short posts and join public conversations.
AnonAddy — AnonAddy (rebranded as addy.io) is an open-source email alias service that lets you create unlimited forwarding addresses to protect your real inbox from spam and leaks.
b1gMail — b1gMail is a self-hosted, open-source PHP webmail and groupware platform that lets organizations run their own branded email service with calendar, contacts, and cloud storage.
DebOps — Free, open-source collection of Ansible roles and playbooks for automating the setup of secure, production-ready Debian and Ubuntu infrastructure.
docker-mailserver — docker-mailserver is a free, open-source, self-hosted mail server that bundles Postfix, Dovecot, spam and virus filtering, and DKIM/DMARC into a single Docker container.
Dovel — Dovel is a free, open-source, lightweight SMTP server written in Go that lets developers self-host email sending and receiving for one or more domains with minimal configuration.
Inboxen — Open-source, self-hostable project for generating disposable email inbox aliases; its original hosted instance has shut down.
iRedMail — Open-source installer that deploys a complete, self-hosted mail server with webmail, groupware and anti-spam in minutes.
Mox — Mox is a modern, all-in-one open-source mail server written in Go that bundles SMTP, IMAP4, webmail, and built-in spam and authentication protections into a single low-maintenance binary.
SimpleLogin — SimpleLogin is an open-source email alias service that lets users shield their real email address behind unlimited disposable aliases, now owned by Proton AG.
wildduck — wildduck is an open-source, scalable IMAP and POP3 email server built on Node.js and MongoDB, designed for API-driven mail hosting and horizontal scaling.
Cyrus IMAP — Cyrus IMAP is a free, open-source, scalable email, calendar and contacts server used by ISPs, universities and enterprises to run their own mail infrastructure.
DavMail — Free open-source gateway that lets Thunderbird, Apple Mail, and other clients speak POP, IMAP, SMTP, CalDAV, CardDAV, and LDAP to Microsoft Exchange or Office 365.
Dovecot — Dovecot is a widely deployed, security-focused open-source IMAP and POP3 email server for Unix-like systems, available as a free Community Edition or a commercially supported Pro Edition.
chasquid — chasquid is a free, open-source SMTP email server written in Go, built for simplicity, secure defaults, and easy self-hosting on Linux.
Courier MTA — Courier MTA is an open-source, integrated mail and groupware server providing ESMTP, IMAP, POP3, webmail, and mailing list services under the GPL.
EmailRelay — E-MailRelay is a free, open-source, lightweight SMTP proxy and store-and-forward mail transfer agent written in C++ for Linux and Windows, often used as a local spam-filtering relay.
Exim — Exim is a free, open-source mail transfer agent (MTA) for Unix-like systems, originally built at the University of Cambridge in 1995 and now best known as the default mail server behind cPanel and Debian.
Haraka — Haraka is a free, open source, high-performance SMTP mail server built in Node.js with a fully extensible JavaScript plugin architecture.
OpenSMTPD — OpenSMTPD is a free, open-source SMTP mail server daemon developed as part of the OpenBSD project, focused on security, simplicity, and easy configuration.
Postfix — Postfix is a free, open-source mail transfer agent (MTA) originally written by Wietse Venema at IBM Research as a secure, fast alternative to Sendmail, and today one of the most widely deployed SMTP servers on the internet.
Sendmail — Sendmail is one of the oldest mail transfer agents (MTA) on the internet, originally created at UC Berkeley in the early 1980s, now maintained as an open-source project and Sentrion-based commercial offering under Proofpoint.
Cypht — Cypht is a free, open-source, lightweight webmail client that aggregates multiple email accounts, RSS feeds and calendars into one unified inbox.
Roundcube — Roundcube is a free, open-source AJAX-based webmail client written in PHP that gives IMAP email a desktop-like browser interface.
SnappyMail — Free, open-source webmail client that connects to any IMAP and SMTP mail server through a fast, lightweight, mobile-friendly browser interface.
SquirrelMail — SquirrelMail is a free, open-source webmail client written in PHP that provides IMAP-based email access through a browser, designed to run on low-resource servers with minimal client requirements.
Asterisk — Asterisk is a free, open-source framework for building PBX systems, VoIP gateways, and telephony applications, created in 1999 and maintained by Sangoma.
Flexisip — Flexisip is an open source, modular SIP server suite built by Belledonne Communications for powering VoIP call routing, presence, push notifications, messaging and conferencing infrastructure.
Freepbx — FreePBX is a free, open-source, web-based GUI for managing Asterisk-based phone systems, maintained and sponsored by Sangoma Technologies, powering over a million business phone system installations worldwide.
FreeSWITCH — FreeSWITCH is a free, open-source, software-defined telephony platform supporting SIP, WebRTC, video, and voice communications, created in 2006 and now stewarded by SignalWire, the company its original founders launched in 2017.
FusionPBX — FusionPBX is a free, open-source, multi-tenant PBX and voice-switch web GUI for FreeSWITCH, used to run carrier-grade phone systems, call centers, and white-label VoIP hosting platforms.
Kamailio — Open-source SIP server for building large-scale VoIP, WebRTC and real-time communication platforms.
openSIPS — openSIPS is a free, open-source SIP server used by carriers and telecoms for VoIP infrastructure, maintained by OpenSIPS Solutions in Bucharest, Romania.
Routr — Routr is a free, open-source SIP proxy, registrar, and location server built by Fonoster for deploying VoIP and telephony infrastructure on Docker and Kubernetes.
SIP3 — SIP3 is an open-source, real-time monitoring and troubleshooting platform for VoIP and RTC network traffic, built for support teams handling large call volumes.
SIPCAPTURE Homer — HOMER is a 100% open-source SIP, VoIP, and RTC packet capture and monitoring platform from the SIPCAPTURE project, offering call-flow analysis and drill-down troubleshooting for telecom operators.
Wazo — Open source unified communications platform for building programmable voice, video, messaging, and call center infrastructure.
Yeti-Switch — Open-source SIP session border controller, Class 4 softswitch, and real-time VoIP billing system for telecom carriers and wholesale voice providers.
blackberry — BlackBerry Secure Communications is a sovereign, end-to-end encrypted communications and crisis-coordination platform — spanning SecuSUITE encrypted voice/messaging, UEM endpoint management, and AtHoc emergency response — built for governments and critical-infrastructure organizations.
BetterDiscord — BetterDiscord is a free, open-source client modification for the Discord desktop app that adds custom themes, plugins, and interface tweaks not offered by the official client.
Chatty — Chatty is a free, open-source desktop chat client for Twitch, written in Java, offering an IRC-style interface with Twitch-specific features. It supports joining multiple channels in tabs or separate windows, streamer tools like updating stream title and game from the client, emote autocomplete, and multi-language support, and runs on Windows, macOS, and Linux wherever Java is supported.
connectycube.com — ConnectyCube is a backend-as-a-service platform that provides ready-made SDKs and APIs for in-app chat, peer-to-peer and group video calling, and push notifications. Founded in 2018 and headquartered in Berlin, Germany, it supports iOS, Android, React Native, Flutter, Cordova, NativeScript, and Web, and offers tiered pricing from a free plan up to an Enterprise plan with HIPAA compliance.
Franz — Desktop app that combines 75+ messaging and email services like Slack, WhatsApp, and Gmail into one workspace, built by an independent Vienna-based team since 2016.
getstream.io — GetStream (Stream.io, Inc.) provides API and SDK infrastructure that lets developers add real-time chat, activity feeds, and video/audio calling to their applications without building the backend themselves.
curvedental — Revolutionize your dental practice with Curve's innovative software. Streamline workflows, enhance communication, and empower your team.
lillio — Lillio (formerly HiMama) is an all-in-one childcare management platform for daycare centers and preschools, covering parent communication, daily reports, check-in, billing, and curriculum tools.
gaviti — Gaviti streamlines accounts receivable with an AI-powered platform, automating invoices, reducing DSO, and making A/R predictable and scalable.
elementor — Elementor is a drag-and-drop WordPress website builder that lets creators design, build, and manage professional websites and online stores without writing code.
kixie — Kixie is an AI-powered sales engagement platform offering PowerDialer, Click-to-Call, SMS, and automated calling/texting workflows with deep CRM integration for sales and support teams.
Zoho Mail — A unique and powerful software suite trusted by millions of businesses worldwide. Zoho covers your end-to-end business needs, from sales and marketing to finance, HR, and beyond.
efrontlearning — eFront is an enterprise-grade Learning Management System (LMS) from Epignosis that lets mid-market and large organizations build, deliver, and track compliance, onboarding, and continuous-training programs, with an AI course generator and on-premises or private-cloud deployment options.
grasshopper — Grasshopper is a cloud-based virtual phone system that gives small businesses and entrepreneurs a dedicated business number, VoIP calling, business texting, and voicemail transcription without a landline.
avochato — Avochato is a business SMS platform that lets sales, marketing, and support teams manage two-way texting, live chat, and calls from one shared inbox.
hrsoft — HRSoft is an AI-powered compensation management platform that helps enterprises plan, budget, and communicate salary, bonus, and long-term incentive pay across global teams.
tuta — Tuta guarantees your data stays private for free & without ads. Quantum-resistant encryption makes Tuta the best secure technology solution to protect your privacy.
cacr — Cacr is a Russian digital-solutions studio offering subscription Telegram/MAX messenger bots and WordPress plugins for lead-form relay, community management, and customer communication, alongside custom bot, CRM, and app development.
sms — Send bulk SMS instantly to thousands of contacts. Campaigns, API, templates and more. Built for businesses in Eswatini & Southern Africa.
ochats — oChats is a cloud-based CRM and shared team inbox built on the official Meta WhatsApp Cloud API, letting sales and support teams manage WhatsApp, Facebook Messenger, Instagram, Telegram, LINE, WeChat, email, and website live chat conversations from one dashboard.
kaicalls — KaiCalls is a paid AI phone service that gives a business a phone number staffed by an AI voice agent ("Kai") which answers calls, qualifies and routes leads, and follows up automatically by text, email, or outbound call.
en-us — Streamline your sports club with powerful management software for communication, payments, scheduling and member development. All you need in one place.
trumpia — Trumpia is automated SMS and multi-channel marketing software that lets businesses send personalized text, MMS, email, and voice campaigns and manage two-way conversations with customers.
jupitersoftwares — Jupiter Softwares makes JupiterMeet, a self-hosted, white-label video conferencing platform businesses install on their own servers to run unlimited meetings without third-party SaaS fees.
podium — AI-powered lead generation and customer communication platform built for local businesses, using an "AI Employee" to respond to inquiries, qualify leads, and book appointments around the clock.
donorbox — Our all-in-one donation software powers online fundraising & donor relationship management with AI-powered CRM. Free online platform to create donate button & pages and receive donations with ease.
funnelleasing — Our revolutionary CRM property management software saves both time and money for agents and owners while making leasing more efficient.
textline — Textline's business texting software offers solutions for sales, marketing, customer service and beyond. Utilize the power of SMS to grow quickly.
octoperf — OctoPerf provides the best load testing UX. Simulate realistic user journeys throughout your application. Sign up and get a lifetime free account!
sendbyte — Email, marketing email, SMS, and WhatsApp through one API and one dashboard, built for Africa. Transactional email is live today, priced in Naira with no FX surprises. Marketing, SMS, and WhatsApp are open for early access.
optimoroute — OptimoRoute plans and optimizes routes and schedules for deliveries and mobile workforce, bringing the state of the art technology for planning, routing and schedule optimization to everyone.
doctible — Doctible is a patient engagement platform for dental, orthodontic, chiropractic, and vision practices, offering online scheduling, two-way texting, reminders, and reputation management.
mailstroom — Mailstroom is an accessible, GDPR-compliant newsletter and press-release platform built for Dutch municipalities, businesses, and non-profits, offering WCAG AAA accessibility and a fixed monthly rate.
textus — Your leads are ignoring calls and emails. TextUs gets them to respond. The native SMS integration for Salesforce & HubSpot that turns cold leads into closed deals.
clinicsense — All-in-one clinic management software + massage software featuring online scheduling, treatment notes, forms, finance, communication tools, and more.
tooldocs — ToolDocs™ is a self-hosted WordPress plugin that lets site owners gate documents (PDFs, spreadsheets, CAD files, and more) behind lead-capture registration forms, track downloads, and manage document access without relying on an external service.
shapr3d — Experience the world’s most intuitive 3D modeling software for iPadOS, Windows & macOS. Download now and start your first professional CAD project for free.
revenuewell — Grow your practice, connect with patients & boost office productivity with RevenueWell’s all-in-one dental marketing & patient communication platform.
mykidzday — #1 rated Childcare Software & daycare app for daily sheets, attendance, CACFP, online registrations, billing for Preschools, summer camps, daycare & after care
cardflo — Cardflo is a payment orchestration platform that connects merchants with 50+ acquiring banks and 400+ payment methods, using smart routing and decline recovery to boost approval rates.
gfi — GFI Software provides network security, communication, and network management tools — including GFI KerioControl, GFI KerioConnect, and GFI LanGuard — used by 40,000+ SMBs worldwide.
coastapp — Coast is an all-in-one maintenance management (CMMS) platform that unifies work orders, asset tracking, preventive maintenance, and team communication.
track-pod — Track-POD is a cloud-based delivery management and route optimization platform that helps businesses plan routes, track drivers in real time, and capture paperless proof of delivery.
accruent — Accruent's software helps workplace & asset management organizations unify their built environments for better management of people, places, and resources.
comprehensive — Compensation management software that streamlines pay review cycles, salary benchmarking, and total rewards statements — without a thousand spreadsheets.
vantaca — Vantaca is an AI-first, cloud-based platform for HOA and community association management companies, automating accounting, vendor payments, and homeowner communication so managers can scale portfolios without adding headcount.
updox — Updox helps you give the best virtual & in-person care. Get telehealth video, online forms, HIPAA-compliant texting & electronic faxing all in one inbox.
orangelogic — Orange Logic is a cloud-based digital asset management (DAM) platform that centralizes enterprise content storage, rights governance, and AI-driven workflow orchestration.
clicksend — ClickSend is a cloud-based business messaging API and dashboard for sending and receiving SMS and MMS at scale, with no-code integrations for apps like Salesforce, Zapier, and Shopify.
digitalbanking — White-label digital banking software for retail and corporate banks, covering mobile/internet banking, customer onboarding, loan origination, and PSD2 open banking.
veesing — Veesing (中昱维信) is a Shanghai-based enterprise messaging platform offering bulk SMS, MMS, video SMS, and voice notification services across China's major mobile carriers.
kangarootime — Kangarootime’s platform helps eliminate everyday stressors that come with managing a childcare center. Automate billing and invoicing, effectively manage staff, communicate with families, and give teachers control of the classroom with one, easy-to-use system.
geekbot — Discover how to run asynchronous standup meetings in Slack and MS Teams and keep your team synced using Geekbot. Start your free trial today!
intelex — Intelex is a cloud-based Environmental, Health, Safety, and Quality (EHSQ) management platform that helps enterprises track incidents, manage compliance, run audits, and drive sustainability and risk programs.
emitrr — Emitrr is a complete business toolbox. Emitrr helps local businesses communicate and engage customers through text messages and automation
smstunnel — Write texts on your computer and send them from your own Android phone and number. Transactional SMS, 2FA codes, and notifications — delivered by your phone.
aivie — Connect your WooCommerce shop with Aivie/Mautic and use customer data, orders, products, and subscriptions directly for your marketing automation. This creates follow-ups, segments, and campaigns based on real purchase data.
akkedli — Akkedli is a WhatsApp order-confirmation and customer-chat platform for Arabic-speaking e-commerce stores, automating cash-on-delivery order confirmations and post-purchase follow-up.
callhippo — Cloud-based business phone system with AI voice agents, omnichannel messaging, and call center tools for sales and support teams.
5ways — 5 Ways is a client communication and CRM platform built for accounting firms, unifying phone, email, and chat conversations, task delegation, and case management in one system.
yac — Asynchronous voice messaging, screen recording, and video feedback for remote teams that want to replace live meetings.
appian — Appian is an enterprise low-code automation platform that combines AI agents, process orchestration, and system integration to help large organizations build and run mission-critical business applications faster.
fireflies — Fireflies takes notes, manages tasks, and automates workflows across meetings, email, chat, CRM, and your apps. Build a searchable knowledge base of your team's work in one place.
bulksms — Get your message across. One account, so many ways to send.
rediker — Rediker Software's integrated school management system improves data management, streamlines admissions, and maximizes school-to-home communication.
troopmessenger — End-to-end encrypted team messaging, calls & file sharing for enterprises. Role-based access controls, audit logs & compliance tools included. SaaS or On-Premise. Free 7-day trial.
textedly — Textedly's SMS marketing platform makes text message marketing easy. Send bulk SMS, automate campaigns, and grow your business with our mass texting service.
mightycall — MightyCall cloud call center software is designed for small and mid-sized businesses. We’re an industry leader due to our reliable & intuitive nature, exceptional customer support, and ease of setup.
gotasale — Order & sale alerts for WooCommerce, Shopify & 5 more platforms, plus Stripe, Gumroad & more, sent to Telegram, Discord, Slack, Teams, Google Chat & webhooks.