I Built a Free Calendly Alternative (Because $12/mo is Insane)

Description and use

A browser‑based, self‑hosted appointment booking tool that requires no signup, credit card, or third‑party data storage. It offers unlimited services, configurable buffer times, timezone awareness, and can be embedded via a single iframe line.

Problem

Freelancers, coaches, and tutors need a simple, cost‑free way to let clients book calls without paying monthly fees or dealing with watermarks and signup requirements.

Outcome

Users can schedule appointments without any cost, watermark, or account creation, while enjoying features like multi‑service management, buffer times, and timezone awareness.

Workflow

• 1. Open the tool in a browser. 2. Select your timezone. 3. Create multiple services with custom durations and buffer times. 4. Copy the provided iframe code. 5. Paste the iframe into your website or email. 6. Clients view available slots in their own timezone and book directly.
• 7. Bookings are stored locally; no data is sent to third‑party servers.

Evidence

No signup. No credit card. No data sent to any third‑party server. It just works.

Source

Multi-service management — set up a 30‑min discovery call, a 60‑min coaching session, and a 45‑min tutoring slot, each with its own duration and buffer time

Source