Tymeslot

Why Tymeslot?

• Open Source (ELv2): Fork it, audit it, contribute to it. No vendor lock-in, no surprise pricing — ever.
• Your data, your rules: Self-host on Docker or Cloudron, or use the managed cloud at tymeslot.app.
• Generous free tier: Everything you need to get started, forever. No credit card required.
• Privacy-first: No tracking pixels, no data mining, no selling your information to third parties.
• Performance by design: Real-time updates powered by Phoenix LiveView. No polling, no delays.

Authentication & Access

Multi-provider OAuth (Google, GitHub), generic OIDC/SSO (Keycloak, Authentik, Okta, Azure AD), email/password with verification, customizable profiles and avatars, guided 4-step onboarding.

Smart Scheduling

90+ timezone-aware cities, custom business hours and breaks, real-time conflict detection, and configurable meeting types.

Calendar Sync

6 calendar providers with full CRUD, automatic token refresh, and calendar auto-discovery.

Video Conferencing

5 video providers with automatic room creation and OAuth integration.

Email Notifications

Professional MJML templates, 5 notification types, calendar attachments (ICS), and delivery tracking.

Security

Rate limiting, AES encryption for stored credentials, XSS protection, and circuit breakers around external APIs.

Internationalization

English, German, and Ukrainian. Auto browser language detection, localized booking pages, and DST-aware scheduling.

Embedding & Webhooks

Secure iframe widgets with domain restrictions and webhook notifications for booking events.

Reminders

Unlimited reminders per meeting, flexible timing, and automatic retry on delivery failure.