OpenAlternative
Browse
Alternatives
Categories
Tech Stacks
Self-hosted
Advertise
Submit
Sign In
Latest tools
Self-hosted
Coming Soon
Alternatives
Categories
Tech Stacks
Tags
Submit
About Us
Advertise
Ad
Learn more
/
Categories
/
Appointment Scheduling
/
Using CSS
Open Source Appointment Scheduling Tools using CSS
A curated collection of the best open source software for booking appointments and managing calendars. using CSS.
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Stars
Forks
Last commit
Ad
Sent
– A unified API for sending messages across SMS, RCS, and apps like WhatsApp.
Learn More
Popular Proprietary Software:
Spotify Alternatives
2
Notion Alternatives
19
Claude Code Alternatives
16
Wispr Flow Alternatives
7
Lovable Alternatives
5
n8n Alternatives
6
Discord Alternatives
10
Power BI Alternatives
10
CapCut Alternatives
5
Cursor Alternatives
14
Microsoft Word Alternatives
5
Microsoft Visio Alternatives
5
Popular Categories:
Low-Code/No-Code Platforms
37
AI Agent Platforms
23
Project Management Suites
21
PaaS & Deployment Tools
18
AI Personal Assistants
20
Note-Taking Tools
17
Infrastructure Monitoring Tools
16
Web Analytics
16
Backend-as-a-Service (BaaS) Tools
16
Team Chat & Messaging Tools
14
Workflow Automation Tools
16
Collaborative Workspaces
16
Order by
▼
Cal.com
Self-host your own scheduling page, no vendor required
Stars
46,307
Forks
14,423
Last commit
2 days ago
Cal.diy is the community edition of Cal.com for personal self-hosting, with calendar sync, video conferencing, payment support, and a REST API.
Open Source
Alternative to:
Calendly
Rallly
Effortless group scheduling for seamless collaboration
Stars
5,157
Forks
532
Last commit
7 hours ago
A user-friendly, open-source tool for coordinating events and meetings without the hassle of back-and-forth emails or messages.
Open Source
Alternative to:
Calendly
Ad
Openlane
Open-source, developer-first platform for automated compliance, risk management, and built-in Trust Center.
Visit Openlane