ToolVitals
💬

Communication

Chat, video conferencing, async communication

178 tools across 10 use cases

Team Chat

Team messaging, communities, and async communication tools.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Rocket.Chat Top Pick
The Secure CommsOS™ for mission-critical operations
OSI-approved OSS
45.4k stars Active 100
02
Mattermost
Mattermost is an open source platform for secure collaboration across the entire software development lifecycle..
OSI-approved OSS
37k stars Active 100
03
SimpleX Chat
SimpleX - the first messaging network operating without user identifiers of any kind - 100% private by design! iOS, Android and desktop apps 📱!
OSI-approved OSS
11.2k stars Active 99

Proprietary targets

Replacement targets, not open-tool picks

01
Discord
Voice and text chat for communities
Active 93
02
nodyx
Self-hosted community platform with forum, chat, voice, and canvas.
Active 87
03
tickets
Minimalist and private ticket sales platform.
Warning 80

7 tools are on Evidence Watch.

Transactional Messaging

SMS, email, push, and transactional notification APIs.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Element Top Pick
Enterprise communication platform
OSI-approved OSS
13.2k stars Active 98
02
Wraps
AWS Email, SMS, and CDN tools.
OSI-approved OSS
46 stars Active 88
03
Notifuse
Notifuse is an open-source & modern emailing platform
OSI-approved OSS
2k stars Active 86

Proprietary targets

Replacement targets, not open-tool picks

01
Resend
Resend is a tool tracked for transactional messaging signals, maintenance activity, and public release evidence.
Active 90
02
Lunogram
Multi-channel customer engagement automation platform for email, SMS, push, and chat.
Warning 69
03
Open BSP API
Open-source WhatsApp Business platform.
Warning 61

Email Clients & Webmail

Email clients and webmail interfaces for reading, organizing, and sending email across one or more inboxes.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Bulwark Mail Top Pick
Self-hosted JMAP webmail client for modern mail servers.
OSI-approved OSS
570 stars Active 93
02
Mailflow
Self-hosted unified webmail client.
OSI-approved OSS
127 stars Active 90
03
FreshRSS
A free, self-hostable news aggregator…
OSI-approved OSS
15.2k stars Active 87

Proprietary targets

Replacement targets, not open-tool picks

01
TymeSlot
Open-source meeting scheduling platform.
Active 87
02
EmailThing
Web app for receiving and sending emails.
Warning 55

Video Conferencing

Video meetings, conferencing, webinars, and calling tools.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
OpenVidu Top Pick
Open-source video conferencing platform.
OSI-approved OSS
2.1k stars Active 82
02
Intercom Manager
Open Source Intercom Solution.
OSI-approved OSS
79 stars Warning 55
03
FinalCast OpenSource
Open-source podcasting and video conversation platform.
OSI-approved OSS
2 stars Critical 40

Proprietary targets

Replacement targets, not open-tool picks

01
Calendly
Scheduling automation platform
Active 93
02
Memoir AI
Open-source enterprise meeting intelligence platform.
Critical 53

Telephony & PBX

Phone system software for SIP/VoIP calling, call routing, voicemail, and PBX operations.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
MikoPBX Top Pick
Open-source PBX for small business built on Asterisk.
OSI-approved OSS
546 stars Active 86

Proprietary targets

Replacement targets, not open-tool picks

01
FastAICC
Open-source AI call center solution with FreeSWITCH and LLM support.
Critical 39
02
GoNopbx
Web GUI for Asterisk PBX with extensions, SIP trunks, voicemail, and real-time dashboard.
Critical 33

Email Aliasing & Forwarding

Tools for creating email aliases, masks, and forwarding addresses to protect privacy and route mail to real inboxes.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
AnonAddy Top Pick
Anonymous email forwarding service.
OSI-approved OSS
4.7k stars Active 84
02
MailX
Audited open-source email aliasing service.
OSI-approved OSS
52 stars Warning 82

Event Management

Tools for planning and running events, conferences, hackathons, registration, ticketing, CFPs, scheduling, and speaker workflows.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
Hitobito Top Pick
Web app for managing complex group hierarchies, members, events, and more.
OSI-approved OSS
470 stars Warning 80

Proprietary targets

Replacement targets, not open-tool picks

01
OpenBoxOffice
Open-source ticketing platform.
Warning 43

Self-Hosted Email Server

Self-hosted mail server stacks for deploying and managing SMTP, IMAP, webmail, DNS, and related email infrastructure.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
gromox Top Pick
Groupware backend supporting mail and calendar protocols.
OSI-approved OSS
241 stars Warning 79

Proprietary targets

Replacement targets, not open-tool picks

01
Mail-in-a-Box
Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server: a mail server in a box.
Warning 67

Email Aliasing & Forwarding

Tools for creating email aliases, masks, and forwarding addresses to protect privacy and route mail to real inboxes.

Open ranking →

Open/source-visible picks

Health-first ToolVitals score, then adoption

01
SimpleLogin Top Pick
The SimpleLogin back-end and web app
OSI-approved OSS
6.7k stars Active 90

Temporary Email

Services for creating disposable inboxes and temporary email addresses.

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Open/source-visible picks

Health-first ToolVitals score, then adoption

01
MoEmail Top Pick
Temporary email service.
OSI-approved OSS
2.6k stars Warning 56