Dev tools · alternatives · 2026

24 alternatives to Hexadecimal Hacker's Calendar
2021 calendar for real hackers
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Hexadecimal Hacker's Calendar launched in 2021; newer entries below may have overtaken it.
- 1OP
2019 · davebakker.io · its alternatives →
- 2LU
As a fun evening project, I made a live-updating version of the 'What a week, huh?' meme (based on a panel from The Adventures of Tintin comics [1]). There's a page for every timeframe: - 'What a day': https://tintin.dlazaro.ca/day - 'What a week': https://tintin.dlazaro.ca/week - 'What a month': https://tintin.dlazaro.ca/month - 'What a year': https://tintin.dlazaro.ca/year Current time is determined by a Cloudflare Worker using the request IP (not logged or stored). No JavaScript is sent to the browser. [1]…
2025 · tintin.dlazaro.ca · its alternatives →
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- 5

Dark & light, printable calendars for minimal offices
2020 · its alternatives →
- 6

No physical fireworks, just digital ASCII
2025 · its alternatives →
- 7

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- 9
Thirty Calendar▲153The best ai calendar to organize your work and life.
Sep 2025 · thirtycalendar.com · its alternatives →
- 10IM
2024 · aaronson.org · its alternatives →
- 11

Free physical calendar with funny IT encounters 📅
2017 · its alternatives →
- 12

- 13

Generate unique text calendars using Unicode 🗓️
2019 · its alternatives →
- 14

- 15

All special days and weeks in the world
2023 · its alternatives →
- 16

- 17

- 181O
The #1 Hacker News story on this day, every year since 2007.
Apr 2026 · onthisday-theta.vercel.app · its alternatives →
- 19

A calendar of all UX, motion, design & creativity events
2023 · its alternatives →
- 20

- 21DN
I wrote an nvim plugin that does fuzzy time parsing on plain english dates to help you create + organise periodic notes. I use it daily at work and home. Hope it's helpful to others. :) note: not using NLP, LLMs or 'true' fuzzy parsing as per academic literature; just normal recursive descent parsing
2025 · github.com · its alternatives →
- 22

- 23BA
2020 · rahulrav.com · its alternatives →
- 24OC
I created a highly configurable calendar 3D model using OpenSCAD. This project uses Zeller’s Congruence to automatically adjust the calendar layout for any year. Just change the year in the configurator, and the model updates accordingly. The link contains a little more of the backstory and the downloadable model from a 3rd-party site, additionally the full source code is included in the post. Some highlights: - Implemented date calculations entirely in OpenSCAD (with no built-in date support, which was challenging but fun). - Customizable layout, multi-material printing support, and…
2025 · chrastecky.dev · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →