Acuity Scheduling
Online appointment booking software with automated scheduling and reminders
Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Open-source scheduling tool for effortless group meeting coordination
Schedule group meetings with friends, colleagues, and teams using meeting polls. Find the best date and time based on participant availability without endless email chains.
Rallly is a scheduling and collaboration platform designed to eliminate the friction of organizing group events and meetings. Instead of endless back-and-forth emails, create meeting polls that let participants indicate their availability, making it easy to identify optimal times that work for everyone.
Built on a robust technical foundation—Next.js, Prisma, tRPC, and TailwindCSS—Rallly delivers a responsive, type-safe experience. The platform supports self-hosting for teams that need data sovereignty and full control over their scheduling infrastructure. PostgreSQL provides reliable data persistence, while the T3 stack ensures maintainable, scalable code.
Whether you're coordinating team standups, planning social gatherings, or organizing community events, Rallly adapts to your workflow. The interface prioritizes clarity and speed, helping organizers collect availability and finalize schedules quickly. With multilingual support through i18next and authentication via NextAuth, the platform accommodates diverse user bases and deployment scenarios.
When teams consider Rallly, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Team Sprint Planning
Coordinate recurring sprint planning sessions across distributed teams by polling availability and locking in times that maximize attendance.
Community Meetup Coordination
Organize local meetups or virtual events by collecting member availability and selecting dates that work for the majority of participants.
Client Meeting Scheduling
Share polls with external clients to find mutually convenient meeting times without exposing internal calendar details or requiring account creation.
Academic Group Projects
Students coordinate study sessions and project meetings by polling classmates' schedules and identifying common free time slots.
Rallly is licensed under AGPL-3.0, which requires that modified versions hosted as a service must make source code available to users.
Yes, Rallly provides comprehensive self-hosting documentation. You'll need Docker, PostgreSQL, and familiarity with Next.js deployment.
Rallly is built with Next.js, Prisma ORM, tRPC for type-safe APIs, TailwindCSS for styling, and PostgreSQL for data storage.
Yes, Rallly uses i18next for internationalization and welcomes community contributions for additional language translations.
The README does not specify authentication requirements for poll participants, but NextAuth is integrated for user authentication features.
Project at a glance
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