Dev tools · alternatives · 2026
24 alternatives to Code Calendar – open-source app to keep track of coding contests
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Code Calendar – open-source app to keep track of coding contests launched in 2022; newer entries below may have overtaken it.
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Coding Buddy▲84Never miss a coding contest again
2021 · chromewebstore.google.com · its alternatives →
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I love the looks and UX of the Google calendar. But I wanted to have a version I could use more freely in my own projects, still looking similar to the one from Google.
2024 · schedule-x.dev · its alternatives →
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CodenQuest▲282Hello everyone, I've been working on a project called CodenQuest, a coding practice app inspired by platforms like LeetCode, but with a major twist: it's heavily gamified, similar to Duolingo. The main goal is to make coding practice more engaging, especially on mobile. Key Features: - Diverse coding questions with integrated hints and timers. - Code editor with code completion and fill in the blanks questions - Performance statistics (runtime, memory, CPU usage, and more). - Gamified elements: leagues, ranking systems, daily challenges, friends, and streak mechanisms. - Available on iOS and…
2024 · codenquest.com · its alternatives →
- 4CA
2019 · campaigndays.com · its alternatives →
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Never miss coding contest. Track, filter, and get reminded
Dec 2025 · its alternatives →
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Live code notebook as an open source web app
2016 · jupyter.org · its alternatives →
- 17CA
2024 · codeshare.app · its alternatives →
- 18WS
2015 · projects.willacton.com · its alternatives →
- 19TA
2017 · textcal.com · its alternatives →
- 20TL
Made this todo list + calendar heat map over a couple of weekends, so its rough, but should be valuable enough to be used. Currently stores data in local storage, but I'm working on persisting data with auth + a database. Features coming in the couple weeks: (1) Search, (2) Categories. Hope you find it useful!
2023 · todogrids.com · its alternatives →
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codebar▲12A non-profit initiative runnin regular programming workshops
2015 · codebar.io · its alternatives →
- 22OC
2023 · code.nanoapp.dev · its alternatives →
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- 24CG
2015 · battle.hexlet.io · 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 →