Self-hosted alternatives to Cal.com

Punctual

Open-source Calendly alternative for a single team, with booking pages, calendar sync and team scheduling on Workers

What a Cal.com user would miss

Payments, SMS reminders, a workflow builder and built-in video. The open-source build covers one team, it is pre-1.0, and emails are only logged until Resend, Brevo or Cloudflare Email Service is set up.

What it adds

Runs as one Worker with D1, KV, R2, Durable Objects and a queue in your own Cloudflare account. The MIT-licensed version has no seat limits, and it includes HMAC-signed webhooks, a REST API and a built-in MCP server.

• Yes Booking page with a custom link and event types. Booking pages and event types with custom questions, logos and social cards.
• Yes Calendar sync that avoids double bookings. Google Calendar and Microsoft 365 through your own OAuth apps.
• Yes Availability controls with buffers, notice and limits. Buffers before and after, minimum notice, booking horizon, daily caps and date overrides.
• Yes Collective and round-robin team events. Round-robin and collective events with required and optional hosts.
• Partly Reminders and workflows by email and SMS. Emails with reminders at 24 hours and 1 hour, an opt-in morning digest, and Slack and Telegram notifications; no SMS or workflow builder.
• Yes Website embeds. Embed script with a resizing iframe.
• Partly Video conferencing links. Google Meet and Teams links, plus custom link, phone and in-person locations; no built-in video.
• No Payments for bookings. No payment code found.

Sources:github.com/cccrafts/punctual/blob/main/README.mdgithub.com/cccrafts/punctual/blob/main/src/core/domain/types.tsgithub.com/cccrafts/punctual/blob/main/src/http/embed.tsgithub.com/cccrafts/punctual/blob/main/src/adapters/scheduled.tspunctual.sh

CloudMeet

Self-hosted booking page and Calendly alternative with Google Calendar and Outlook sync, on Cloudflare Pages

What a Cal.com user would miss

Team and round-robin events, embeds, SMS reminders and workflows, built-in video, payments, buffers and booking limits. Only one Google account can sign in as the admin, and booking emails need an Emailit API key.

What it adds

Runs on Cloudflare Pages with D1 and KV in your own account, deployed from a GitHub template. A host can propose a new time for an existing booking, and the guest accepts or declines it from an emailed link.

• Yes Booking page with a custom link and event types. Public page for each event type under the host's own slug.
• Yes Calendar sync that avoids double bookings. Checks Google and Outlook busy times plus existing bookings.
• Partly Availability controls with buffers, notice and limits. Weekly working hours only; the schema has a buffer column that no code reads, and no notice window or daily limit was found.
• No Collective and round-robin team events. One admin account only.
• Partly Reminders and workflows by email and SMS. Email confirmations and reminders at 24 hours and 1 hour, with editable templates; no SMS or workflow builder.
• No Website embeds. No embed script or widget found.
• Partly Video conferencing links. Google Meet and Teams links; no built-in video.
• No Payments for bookings. No payment code found.

Sources:github.com/dennisklappe/cloudmeet/blob/main/README.mdgithub.com/dennisklappe/cloudmeet/blob/main/schema.sqlgithub.com/dennisklappe/cloudmeet/blob/main/src/routes/api/availability/%2Bserver.tsgithub.com/dennisklappe/cloudmeet/blob/main/src/routes/api/bookings/%2Bserver.ts