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hash-calendar

Lightweight calendar app where the data lives in the URL hash

File Sync & Storage ★ 70 stars Medium setup MIT

Lightweight calendar app where the data lives in the URL hash.

Official siteSource code

Strengths

  • Released under the MIT license
  • Written in JavaScript
  • Lightweight — runs in 512 MB RAM

Is hash-calendar secure?

OSV.dev has no published security advisories for hash-calendar's repository. No known vulnerabilities is not proof of security: it means none have been publicly catalogued.

Source: OSV.dev, checked 2026-10-14. How this is measured.

hash-calendar replaces

Self-hosted Google Agenda alternativesSelf-hosted Microsoft Outlook alternatives

Health badge

Maintain hash-calendar? Add its health score to your README. The badge links back to this page.

SelfHostIndex: 49 · fair

Markdown
[![SelfHostIndex health score for hash-calendar](https://selfhostindex.com/badge/hash-calendar.svg)](https://selfhostindex.com/app/hash-calendar/)
HTML
<a href="https://selfhostindex.com/app/hash-calendar/"><img src="https://selfhostindex.com/badge/hash-calendar.svg" alt="SelfHostIndex health score for hash-calendar"></a>
reStructuredText
.. image:: https://selfhostindex.com/badge/hash-calendar.svg
   :alt: SelfHostIndex health score for hash-calendar
   :target: https://selfhostindex.com/app/hash-calendar/

The score is recomputed on every nightly rebuild from public repository data — see how it is calculated.

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