Best Self-Hosted Booking & Scheduling Tools

Quick Picks

Use Case	Best Choice	Why
Best overall	Cal.com	Full Calendly replacement, calendar integrations, workflows
Best for simple booking	Easy!Appointments	Lightweight, no external dependencies, clean UI
Best for polls / group scheduling	Rallly	Doodle alternative, simple date voting, minimal setup

Why Self-Host Scheduling?

Calendly charges $10-16/user/month for features that a self-hosted alternative provides for free. Beyond cost, self-hosting your booking page means your clients’ contact details and meeting data stay on your infrastructure — not feeding someone else’s data pipeline.

These three tools cover different scheduling needs. Cal.com is a full Calendly replacement. Easy!Appointments handles appointment booking for businesses. Rallly replaces Doodle for group scheduling polls.

The Full Ranking

1. Cal.com — Best Calendly Alternative

Cal.com is the open-source scheduling infrastructure platform. It does everything Calendly does — calendar connections, booking pages, team scheduling, workflows, and integrations — with full self-hosting support. The UI is polished and the feature set is enterprise-grade.

Key capabilities:

Area	What You Get
Calendar sync	Google Calendar, Outlook, CalDAV, Apple Calendar
Booking types	One-on-one, round-robin, collective (all must attend), managed events
Workflows	Automated emails/SMS before and after meetings
Payments	Stripe integration for paid consultations
Embedding	Embed booking widget on any website
API	REST API for custom integrations
Teams	Shared availability, routing, managed event types

Pros:

• Feature parity with Calendly’s paid tiers
• Clean, professional booking pages
• Workflow automation (reminders, follow-ups)
• Multi-calendar support
• Active open-source development (30k+ GitHub stars)
• Extensive integration library (Zoom, Google Meet, Stripe, Zapier)

Cons:

• Heavy stack — Node.js + PostgreSQL + Prisma, ~500 MB+ RAM
• Complex Docker setup (multiple environment variables)
• Some features (SMS, certain integrations) require external API keys
• Self-hosted version may lag behind cloud on latest features

Best for: Professionals and businesses that need a full scheduling platform. Consultants, coaches, sales teams — anyone currently paying for Calendly.

[Read our full guide: How to Self-Host Cal.com]

2. Easy!Appointments — Best for Simple Booking

Easy!Appointments is a straightforward appointment scheduling system built with PHP and MySQL. It provides a customer-facing booking page and a provider-facing management interface. No bloat, no unnecessary complexity — just booking.

What it covers:

• Service catalog with durations and pricing
• Provider availability management
• Customer self-booking
• Google Calendar sync
• Email notifications
• Multi-provider support
• Customizable booking form fields

Pros:

• Lightweight — PHP + MySQL, runs anywhere
• Simple to set up and maintain
• Good for service businesses (clinics, salons, consultancies)
• Google Calendar bidirectional sync
• Clean customer-facing UI
• No external API dependencies for core functionality

Cons:

• No workflow automation
• No payment integration in the open-source version
• No team scheduling features (round-robin, collective)
• Limited API compared to Cal.com
• Smaller community

Best for: Service businesses that need online appointment booking without the complexity of a full scheduling platform. Think dentist offices, hair salons, tutoring services.

3. Rallly — Best Group Scheduling (Doodle Alternative)

Rallly is a minimalist meeting poll tool — the self-hosted answer to Doodle. You create a poll with date/time options, share a link, and participants vote on when works for them. That’s it. No accounts needed for participants, no calendar integrations to configure.

What it does:

• Create scheduling polls with multiple date/time options
• Share a link — no account required for voters
• See availability at a glance
• Finalize and notify when a time is chosen
• Guest comments on polls

Pros:

• Dead simple — does one thing perfectly
• Lightest of the three (~100 MB RAM)
• No participant accounts needed
• Self-explanatory UI
• Quick Docker setup (Node.js + PostgreSQL)

Cons:

• Only handles group scheduling polls — not booking pages
• No calendar integrations
• No recurring scheduling
• No payments or workflows
• Limited customization

Best for: Teams that need to coordinate meeting times among multiple people. If you only need “when can everyone meet?” and don’t need booking pages, Rallly is the answer.

Comparison Table

Feature	Cal.com	Easy!Appointments	Rallly
Use case	Full scheduling platform	Appointment booking	Group date polling
Calendar sync	Google, Outlook, CalDAV	Google Calendar	None
Team scheduling	Round-robin, collective	Multi-provider	Poll-based voting
Booking pages	Yes (embeddable)	Yes	No (polls only)
Payments	Stripe	No	No
Workflow automation	Yes (email/SMS)	Email notifications	Email on finalize
API	REST (comprehensive)	REST (basic)	REST (basic)
Participant accounts	Optional	Optional	Not required
Stack	Node.js + PostgreSQL	PHP + MySQL	Node.js + PostgreSQL
RAM usage	~500 MB+	~100 MB	~100 MB
License	AGPL v3	GPL v3	AGPL v3
GitHub stars	30k+	4k+	3k+

Decision Guide

Replacing Calendly → Cal.com. It’s the direct open-source replacement with near feature parity.

Simple business booking → Easy!Appointments. Lighter, simpler, purpose-built for service businesses.

Replacing Doodle → Rallly. Minimal, focused, does group polls perfectly.

Resource-constrained server → Easy!Appointments or Rallly at ~100 MB each. Cal.com needs 500 MB+.

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• Replace Calendly
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• Docker Compose Basics
• Reverse Proxy Setup
• Backup Strategy