ScriptsApr 10, 2026·1 min read

Rallly — Open Source Meeting Scheduling & Polling Tool

Rallly is an open-source Doodle alternative for scheduling group meetings. Create polls, share availability, and find the best time — no sign-up required for participants.

SC
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Quick Use

Use it first, then decide how deep to go

This block should tell both the user and the agent what to copy, install, and apply first.

git clone https://github.com/lukevella/rallly.git
cd rallly
cp sample.env .env
docker compose up -d

Open http://localhost:3000 — create your first scheduling poll and share it with participants.

Intro

Rallly is an open-source scheduling and collaboration tool designed to make organizing events and meetings effortless. It serves as a self-hosted alternative to Doodle, letting you create polls where participants vote on their preferred time slots to find the optimal meeting time — no sign-up required for participants.

With 5K+ GitHub stars and AGPL-3.0 license, Rallly is built with the T3 stack (Next.js, tRPC, Prisma, Tailwind CSS) and provides a clean, modern interface for group scheduling without the ads and upsells of commercial alternatives.

What Rallly Does

Rallly simplifies group scheduling:

  • Scheduling Polls: Create a poll with proposed dates/times, share a link, and let participants vote
  • No Sign-up Required: Participants can vote without creating an account — just enter their name
  • Time Zone Support: Automatic time zone detection and conversion for international groups
  • Comments: Participants can leave comments to explain their availability or preferences
  • Notifications: Email notifications when participants respond or when a final time is selected
  • Finalize & Notify: Lock in the chosen time and automatically notify all participants
  • Guest Mode: Create polls without an account for quick, one-off scheduling

Architecture

┌──────────────┐     ┌──────────────┐     ┌──────────────┐
│  Next.js     │────▶│  tRPC API    │────▶│  PostgreSQL  │
│  (T3 Stack)  │     │  (Prisma)    │     │  (Database)  │
└──────────────┘     └──────────────┘     └──────────────┘

Tech stack:

  • Frontend: Next.js 14 + React + Tailwind CSS
  • API: tRPC for type-safe API calls
  • Database: PostgreSQL with Prisma ORM
  • Auth: NextAuth.js with email magic links
  • Email: React Email templates via Nodemailer
  • i18n: Support for 30+ languages via i18next

Self-Hosting

Docker Compose

services:
  rallly:
    image: lukevella/rallly:latest
    ports:
      - "3000:3000"
    environment:
      DATABASE_URL: postgresql://rallly:rallly@db:5432/rallly
      SECRET_PASSWORD: your-secret-password-min-32-chars
      NEXT_PUBLIC_BASE_URL: http://localhost:3000
      NOREPLY_EMAIL: noreply@yourdomain.com
      SMTP_HOST: smtp.yourdomain.com
      SMTP_PORT: 587
      SMTP_USER: your-smtp-user
      SMTP_PWD: your-smtp-password
    depends_on:
      - db

  db:
    image: postgres:16-alpine
    environment:
      POSTGRES_USER: rallly
      POSTGRES_PASSWORD: rallly
      POSTGRES_DB: rallly
    volumes:
      - pg-data:/var/lib/postgresql/data

volumes:
  pg-data:

How It Works

1. Create a Poll

The organizer creates a poll with:

  • Title and description
  • Proposed date/time options
  • Optional: location, deadline for responses

2. Share the Link

Share the poll URL with participants via email, Slack, or any messaging app. No app installation or account creation needed.

3. Participants Vote

Each participant:

  • Selects their availability for each proposed time (Yes / If need be / No)
  • Optionally leaves a comment
  • Can update their response later

4. Find the Best Time

The organizer sees a summary grid showing everyone's availability:

              Mon 15   Tue 16   Wed 17
Alice          ✅        ✅        ❌
Bob            ✅        ❓        ✅
Carol          ❌        ✅        ✅
─────────────────────────────────────
Best:          2/3      2.5/3    2/3

5. Finalize

Lock in the chosen date and all participants receive a notification with the final details.

Key Features

Multi-Language Support

Rallly supports 30+ languages including English, Chinese, Japanese, Korean, German, French, Spanish, and more — making it accessible for international teams.

Mobile-Friendly

The responsive design works perfectly on phones and tablets. Participants can vote from any device without installing an app.

Privacy-Focused

  • No tracking or analytics on participant activity
  • No ads or upsells
  • Self-hosted = complete data ownership
  • Participant data is never shared with third parties

Rallly vs Alternatives

Feature Rallly Doodle When2meet Calendly
Open Source Yes (AGPL-3.0) No No No
Self-hosted Yes No No No
No signup to vote Yes No Yes N/A
Time zones Auto-detect Yes Yes Yes
Comments Yes Premium No N/A
Mobile app PWA iOS/Android Web only iOS/Android
Ad-free Yes Premium Yes Yes
Pricing Free Free + Premium Free Free + Paid

常见问题

Q: Rallly 和 Calendly 有什么区别？ A: Rallly 是投票式调度（多人选最优时间），Calendly 是预约式调度（个人开放时间段供他人预约）。团队开会用 Rallly，客户预约用 Calendly。

Q: 需要配置邮件服务器吗？ A: 推荐配置 SMTP 以启用邮件通知功能。不配置也可以使用，但参与者不会收到邮件提醒，需要通过链接访问投票。

Q: 支持日历集成吗？ A: 支持将最终确定的事件导出为 .ics 文件，可导入到 Google Calendar、Outlook 等。直接的日历 API 集成在开发路线图中。

来源与致谢

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