Open-source meeting scheduling platform built with Elixir/Phoenix LiveView. Self-host or use the managed cloud at tymeslot.app.
Scheduling that shows up on time — an open, edge-native Calendly alternative on Cloudflare Workers. MIT, no seat limits, ever.
Lean, self-hostable Calendly & Cal.com alternative — a single Go binary + SQLite, API-first and MCP-native. Apache-2.0.
The AI-native, open-source scheduling platform. Otter books meetings, protects your focus, and clears the back-and-forth — confirm-first. Self-host it all under AGPLv3.
⚡ Free & Open-Source Appointment Booking System. A self-hosted Calendly alternative built with Next.js 16, PostgreSQL, and Docker.
Self-hosted, multi-user Calendly alternative — scheduling you actually own. Quarkus + Postgres, per-user booking pages, Google Calendar/Meet sync, approval flows. Server-rendered, no SaaS, no per-seat pricing.
Free Calendly alternative run by a 24/7 AI agent: syncs all your calendars, finds the time that works across them, and books meetings for you, over WhatsApp, Slack, or the web. No irritating setup, and your data stays local.
Modern polling and scheduling app for teams. Create schedule polls, surveys, and booking lists with email-based voting, real-time results, PDF export, and QR code sharing. Self-hosted with Docker, no cloud dependencies. Built with React, Express, PostgreSQL.
District Scheduler: a fork of Calnode (Apache-2.0) with an opt-in multi-tenant mode. The scheduling, meetings and notetaker engine behind District AI.
A zero-overhead, open-source scheduling engine built for solopreneurs to self-host for free.
The open-source Calendly alternative that AI agents can book. Keyless MCP server + llms.txt so any agent can check your availability and book you. Self-hosted, real Google Calendar, Stripe, embeds, REST API.
Dapta Calendars — open-source scheduling. Availability, bookings, teams, round-robin, calendar sync. Clone and run in 60 seconds.
Open-source, self-hostable scheduling — a Cal.com / Calendly alternative with team scheduling in the open core (AGPL-3.0)
Privacy-first scheduling — an end-to-end encrypted Calendly / Cal.com alternative; invitee data is stored as ciphertext the server can never read. Part of the ghost suite. 👻
PickBits Booking: an online booking page for one small business. Your hours, services and buffers; busy times from your calendar; invites sent from your own mailbox. Apache-2.0.
Open comparison database for calendar scheduling software, appointment booking apps, Calendly alternatives, coaching scheduling software, small business booking tools, and GDPR-ready scheduling platforms.
Free appointment scheduling for Capsule CRM with Google Calendar booking pages: capture UTM attribution, book, then sync each booking to Capsule. Google Apps Script or n8n.
Set-it-and-forget-it scheduling page. Your own Calendly alternative on Cloudflare's free tier.
Self-hosted appointment booking page (Calendly alternative)
Scheduling infrastructure for absolutely everyone.
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