Assembly Line

Alternatives to Calendly in 2026

15 commercial products, led by Eventbrite, OpenTable and Cvent. 14 open-source projects you can run yourself, led by Cal.diy, Rallly and Easyappointments.

Open source

  1. 1
    Cal.diy calcom

    Scheduling infrastructure for absolutely everyone.

    Complete system Usable You want to self-host personal booking links without a Cal.com licence and can run Next.js with Postgres.

    ★ 50k MIT TypeScript Active, pushed today
  2. 2
    Rallly lukevella

    Rallly is an open-source scheduling and collaboration tool designed to make organizing events and meetings easier.

    Complete system Production-ready You often coordinate meetings or events with people outside your organisation and want an ad-free Doodle replacement.

    ★ 5.3k AGPL-3.0 TypeScript Active, pushed today
  3. 3
    Easyappointments alextselegidis

    :date: Easy!Appointments - Self Hosted Appointment Scheduler

    Complete system Production-ready A small service business wants online booking on its own PHP hosting without subscription fees.

    ★ 4.5k GPL-3.0 PHP Active, pushed today
  4. 4
    TastyIgniter tastyigniter

    :fire: Powerful, yet easy to use, open-source online ordering, table reservation and management system for restaurants

    Complete system Production-ready A restaurant wants its own ordering site instead of paying marketplace commissions.

    ★ 3.8k MIT PHP Active, pushed 16 days ago
  5. 5
    Alf.io alfio-event

    alf.io - The open source ticket reservation system for conferences, trade shows, workshops, meetups

    Complete system Production-ready You run paid events and want to avoid Eventbrite fees and keep attendee data yourself.

    ★ 1.6k GPL-3.0 Java Active, pushed yesterday
  6. 6
    LibreBooking LibreBooking

    LibreBooking is an open-source resource scheduling solution. It provides a flexible, mobile-friendly, and extensible interface for organizations to manage resource reservations. The "develop" branch contains the latest code of the project.

    Complete system Production-ready An organisation needs staff or members to reserve shared rooms or equipment under rules.

    ★ 844 GPL-3.0 PHP Active, pushed yesterday
  7. 7
    Appointment thunderbird

    Invite others to grab times on your calendar. Choose a date. Make appointments as easy as it gets.

    Complete system Usable You want a privacy-minded Calendly alternative, hosted by Thunderbird Pro or self-run.

    ★ 556 MPL-2.0 Python Active, pushed 3 days ago
  8. 8
    Tymeslot Tymeslot

    Open-source meeting scheduling platform built with Elixir/Phoenix LiveView. Self-host or use the managed cloud at tymeslot.app.

    Complete system Usable A European business wants self-hostable scheduling without gated features.

    ★ 288 AGPL-3.0 Elixir Active, pushed 3 days ago
  9. 9
    Django Appointment adamspd

    A Django app for managing appointment scheduling with ease and flexibility.

    Building block Usable Your Django site needs appointment booking for a service business.

    ★ 282 Apache-2.0 Python Active, pushed 10 days ago
  10. 10
    Eventmie classiebit

    Run your own Events business with Eventmie on your hosting & domain. Open-source self-hosted eventbrite alternative.. Use it as an event ticket selling website or event management platform on your own domain.

    Complete system Usable You run events and want ticket sales on your own site without per-ticket platform fees.

    ★ 190 MIT PHP Active, pushed 3 months ago
  11. 11
    Calnode Calnode

    Lean, self-hostable Calendly & Cal.com alternative — a single Go binary + SQLite, API-first and MCP-native. Apache-2.0.

    Complete system Experimental You want simple self-hosted booking with little infrastructure.

    ★ 120 Apache-2.0 Go Active, pushed 13 days ago
  12. 12
    Punctual CCCrafts

    Scheduling that shows up on time — an open, edge-native Calendly alternative on Cloudflare Workers. MIT, no seat limits, ever.

    Complete system Experimental A small team on Cloudflare wants free self-hosted booking pages.

    ★ 116 MIT TypeScript Active, pushed 30 days ago
  13. 13
    OpenReservation OpenReservation

    预约系统 ReservationSystem powered by asp.net core

    Complete system Usable A school or organisation wants room booking on ASP.NET Core and reads Chinese.

    ★ 247 MIT JavaScript Slowing, pushed 10 months ago
  14. 14
    Dayschedule-widget dayschedule

    Appointment scheduling widget to embed the booking calendar on your website for 1:1, round-robin and group bookings with Google meet, Zoom and MS Teams integrations

    Integration Usable You use DaySchedule and want booking on your own pages.

    ★ 100 MIT TypeScript Slowing, pushed 10 months ago

Commercial

  1. 1
    Eventbrite Eventbrite, Inc.

    Eventbrite - Discover the Best Local Events & Things to Do

    Complete system Production-ready You run public events and want ticketing plus exposure to people browsing Eventbrite for things to do.

    2.1k readers a month Since 2006 Commercial
  2. 2
    OpenTable Booking Holdings

    American internet company

    Complete system Production-ready A restaurant in a market where diners book through OpenTable wants that reservation demand.

    1k readers a month Since 1998 Commercial
  3. 3
    Cvent Cvent

    Cvent provides software to planners for event management, marketing and attendee engagement, and also helps hotels win business through our sourcing platforms.

    Complete system Production-ready A corporate events team runs many conferences and meetings a year and needs sourcing, registration and reporting together.

    551 readers a month Since 1999 Commercial
  4. 4
    Microsoft Bookings Microsoft

    Scheduling tool by Microsoft

    Complete system Production-ready An organisation on Microsoft 365 wants basic customer or internal booking at no extra cost.

    197 readers a month Since 2016 Commercial
  5. 5
    Acuity Scheduling Squarespace

    Acuity Scheduling is an appointment booking software and a scheduling app, offering scheduling automation and full customization. Start a free trial today!

    Complete system Production-ready A solo practitioner or small service business wants client self-booking with forms and payments.

    Commercial
  6. 6
    SimplyBook.me SimplyBook.me

    Online booking system. Booking website or widget for your own website. Let clients schedule appointments, get reminders and pay online 24/7. Free version!

    Complete system Production-ready A small service business outside the US wants configurable booking with many local payment and language options.

    Commercial
  7. 7
    Setmore Setmore

    Accept bookings 24/7 with online appointment scheduling software. Say so long to the back-and-forth and automate reminders with Setmore FREE

    Complete system Production-ready A very small service business wants free online booking.

    Commercial
  8. 8
    Square Appointments Block, Inc.

    Easily streamline and manage your appointments with Square booking software. Stay organized, save time, and keep everything synced in real time.

    Complete system Production-ready A salon or service business already uses Square and wants bookings and checkout in one place.

    Commercial
  9. 9
    Mindbody Mindbody

    Fuel the growth of your business with Mindbody's all-in-one software—the only platform powered by 20+ years of experience in fitness, beauty, and wellness.

    Complete system Production-ready A fitness or wellness studio wants class scheduling, memberships and exposure in the Mindbody consumer app.

    Commercial
  10. 10
    Fresha Fresha

    Find the best salons and spa in your area with Fresha salon booking software. Book now!

    Complete system Production-ready A salon or spa wants free booking software plus listing in a consumer booking marketplace.

    Commercial
  11. 11
    SavvyCal SavvyCal

    SavvyCal is a scheduling tool for sharing booking links. Invitees can overlay their own calendar on your link to find a time, and you control buffers, limits, and preferred times.

    Complete system Production-ready You book many meetings with peers and want a scheduling link that feels more courteous than Calendly.

    Commercial
  12. 12
    Chili Piper Chili Piper

    Agents that recognize every visitor, answer their questions, route them to the right rep, book the meeting and follow up if they leave.

    Complete system Production-ready A B2B company with inbound demand wants demo requests booked straight onto sales reps' calendars.

    Commercial
  13. 13
    Ticket Tailor Ticket Tailor

    The world's most loved event ticketing platform. Whether it’s your first event ever, or your biggest event yet, we make it simple to sell tickets online.

    Complete system Production-ready An event organiser wants lower fees than Eventbrite and to be paid out directly.

    Commercial
  14. 14
    Luma Luma

    Discover and host memorable events effortlessly with Luma. Invite friends, sell tickets, and find great events happening near you.

    Complete system Usable A community or startup runs meetups and wants attractive event pages and a following.

    Commercial
  15. 15
    Tito Tito

    Simple, powerful, event registration software

    Complete system Production-ready A conference organiser wants clean ticketing they can customise and integrate.

    Commercial

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