Top 9 Open-Source Alternatives to Teamup Calendar

Product categories

Appointment Booking Appointment Scheduling Appointments and Scheduling Calendar Calendar And Scheduling Email Email Clients Email Management Enterprise Communication Event Scheduling SMTP Server Self-hosted Email

Summary

The top open-source alternatives to Teamup Calendar are FullCalendar, Nextcloud Calendar, and Rainloop. 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.

FullCalendar Landing Page
1

FullCalendar

FullCalendar is an open-source JavaScript event calendar.
Pricing:
- Open Source
#Appointments and Scheduling #Calendar #Appointment Scheduling 13 social mentions
Nextcloud Calendar Landing Page
2

Nextcloud Calendar

The Calendar app is a user interface for Nextcloud's CalDAV server.
Pricing:
- Open Source
#Calendar #Appointments and Scheduling #Email 4 social mentions
Rainloop Landing Page
3

Rainloop

RainLoop is a web based email client.
Pricing:
- Open Source
#Email #Email Clients #Email Management
Simple Calendar Landing Page
4

Simple Calendar

A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
Pricing:
- Open Source
#Calendar #Appointments and Scheduling #Email 99 social mentions
SOGo Landing Page
5

SOGo

SOGo is groupware server with a focus on scalability and open standards.
Pricing:
- Open Source
#Email #Email Clients #Self-hosted Email 1 social mentions
Roundcube Landing Page
6

Roundcube

Web-based IMAP email client
Pricing:
- Open Source
#Email #SMTP Server #Email Clients 16 social mentions
Dudle Landing Page
7

Dudle

Dudle is an online scheduling application, which is free and open source.
Pricing:
- Open Source
#Appointments and Scheduling #Appointment Scheduling #Event Scheduling 3 social mentions
Mailpile Landing Page
8

Mailpile

Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features.
Pricing:
- Open Source
#Email #Email Clients #Email Management
Calendar Lock PEA Landing Page
9

Calendar Lock PEA

Calendar Lock PEA is an encrypted desktop calendar with a day, week and month view. The shown calendars are never stored unencrypted on your disk, but exist only in the RAM. Platform-independent, Open Source, no installation or registration required.
Pricing:
- Open Source
#Calendar #Appointments and Scheduling #Encryption