About hash-calendar

Last updated: February 12, 2026

Project Purpose

hash-calendar is a privacy-first, client-only calendar designed for fast sharing without accounts. It keeps calendar state in the URL hash so you can share a schedule by sharing a link.

Trust Signals

• No account required.
• No server-side calendar database.
• URL hash data is not sent in standard HTTP requests.
• Optional password-based encrypted links are supported.
• Open-source project under the MIT license.

This app is intended for convenience and privacy, but shared links are still sensitive. Treat calendar links like private data.

Maintainer

Maintained by Supun Lakmal (@supunlakmal).

Project Links