Calendar, events & forms

Online appointment scheduling system.

Access and share your files, calendars, contacts, mail and more from any device, on your terms.

File hosting and sharing solution primary for teams and organizations.

Customizable and intuitive web-based hotel reservation system and a booking engine.

Experience Management Suite built on the largest open source survey stack worldwide. Gracefully gather feedback at every step of the customer journey to know what your customers need.

Form builder that allows anyone to create engaging conversational forms for surveys, questionnaires, quizzes, and polls.

Create polls to vote on dates and times (alternative to Doodle).

Collaboration suite with real-time messaging, rich text pages, file management, and dynamic databases - built for offline work (alternative to Slack, Notion).

Simple calendar and contact server with extremely low administrative overhead.

Open platform to collect and prioritize feedback (alternative to UserVoice).

Allows your customers to book appointments with you via the web.

Event management and ticketing platform for conferences, concerts, and more. Offering customizable event pages and embeddable ticket widgets.

Beautiful form builder.

Feature-rich web-based polling software. Supports extensive survey logic.

Lightweight CalDAV and CardDAV server based on sabre/dav.

SOGo offers multiple ways to access the calendaring and messaging data. CalDAV, CardDAV, GroupDAV, as well as ActiveSync, including native Outlook compatibility and Web interface.

Feature-rich event management system, made @ CERN, the place where the Web was born.

File storage, syncing, sharing, and collaboration with real-time editing, permission management, and desktop/CLI clients.

Flexible tournament system to build a tournament setup, add teams, schedule matches, keep track of scores and present ranking live to the public.

Open source CardDAV, CalDAV, and WebDAV framework and server.

Ticket reservation system.

Calendar syncing tool that pulls and pushes events between calendar sources and destinations via iCal/ICS or OAuth, with support for anonymized busy/free events.

File sharing + sync, notes, and photos (alternative to Nextcloud and ownCloud's RSS reader).

System for guided interviews and document assembly, based on Python, YAML, and Markdown.

Web-based event management, including running a Call for Papers, reviewing submissions, and scheduling talks. Exports and imports for various related tools.

Event management tailored to free Software conferences.

Resource scheduling solution offering a flexible, mobile-friendly, and extensible interface for organizations to manage resource reservations.

The ultimate tool to interact with your audience (alternative to Slido, AhaSlides and Mentimeter).

POP/IMAP/SMTP/Caldav/Carddav/LDAP exchange gateway allowing users to use any mail/calendar client with an Exchange server, even from the internet or behind a firewall through Outlook Web Access.

A simple, dockerizable and fully translatable admin interface for sabre/dav based on Symfony 5 and Bootstrap 4, largely inspired by Baïkal.

Video conferencing, instant messaging, whiteboard, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming.

Presentation and assembly system for managing and projecting agenda, motions and elections of an assembly.

Manage my Damn Life (MMDL) is a self-hosted front end for managing your CalDAV tasks and calendars.

Open source CardDAV and CalDAV server with minimal administrative overhead, backed by a Git repository.

Manage complex group hierarchies with members, events and a lot more.

Self-destructing, shareable, no-registration event pages.

Community-feedback tool for managing incoming feedback and prioritizing a public roadmap (alternative to Canny, UserVoice, Upvoty).

Create a simple place for your entire family to use to find gifts that people want, and to avoid double-gifting.

Conduct polls about dates, times or general questions.

Webbased app to book seats, desks and rooms for offices.

Software suite including calendars, address books, notepad, project management tools, client relationship management tools (CRM), knowledge management tools, a wiki and a CMS.

Enterprise CRM and groupware tool. Share projects, calendars, files and e-mail online with co-workers and clients.

Collaborative Platform for team collaboration: file,threads,notes,agenda,etc.

Day planner with drag-and-drop time blocking, inbox, recurring tasks, habits, routines, goals, projects and Pomodoro focus mode, plus iCal and CalDAV calendar sync. Data stays in the browser, with optional WebDAV or GLANCEvault sync.

Minimal events aggregator.

Manage motions and amendments for (political) conventions.

Server for calendar sharing (CalDAV) that uses a PostgreSQL database as a data store.

Community-focused event management and ticketing platform.

Share events, sell tickets, and bring communities together.

Software for digital collaboration in companies and organizations. From powerful groupware functionalities to clever add-ons, tine combines everything to make daily team collaboration easier.

Groupware including email, calendar/scheduling, address books, forums, mailing lists, IM, wiki and blog engines, RSS aggregation and more.

Personal cloud where you can manage and sync your files, notes, contacts, passwords, and documents.

Create a virtual game room around a connected buzzer (documentation in French).

An online self-hosted application for creating collaborative digital notepads (Documentation in french).

Interactive whiteboard/wallpaper for the classroom, in person or remotely (documentation in French).

Create collaborative surveys, quizzes, brainstorms, and word clouds (documentation in French).

A set of simple tools to accompany the animation of courses in person or remotely. (documentation in French).

Create multimedia collaborative walls for in-person or remote work (documentation in French).

Online service for planning an appointment or make a decision quickly and easily: Make a poll, Define dates or subjects to choose, Send the poll link to your friends or colleagues, Discuss and make a decision.

Local community event and agenda sharing.

Federated tool that helps you find, create and organise events and groups.

Email, calendar, collaboration server with Web interface and lots of integrations.