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Programming cheat sheets

Screenshot of overapi.com captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 6 calendar years, with breakout response in 2 of them.

submissions
13
submitters
13
observed span
2012–2017
peak thread · 57 comments
324 pts
latest 20+ return · 2017-11-14
52 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

I also like https://learnxinyminutes.com for when I need to understand some code in an unfamiliar language. That site also accepts contributions from anyone via pull request on GitHub.

Useful in a pinch, but I would not recommend using these. Make your own. If you plan on using the language, making your own cheat sheet is the best way to learn it. By the time you are able to make one, you know what you use, what you always forget, and what is obscure, but important enough to need a quick refresher.

Most cheatsheets I find when searching are subject to heavy devaluation of the term. For me, a cheatsheet is a 1-page physical document listing the most important possibilities of a language, api or technology in the most concise way possible. Many cheatsheets I find are multi-page or even larger websites, have very verbose information on them and contain redundant information. That being said, I really like your effort in this!

Kudos! I really like it and will use it. There is a problem with RegExp links: 404 errors. http://overapi.com/javascript/jsref_regexp_charset.asp

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
643

reference only — not used in Hall rules or ranking

Total comments
113

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2012-06-19OverAPI.com is a site collecting all the cheat sheets.dewreg50
2012-11-29Programming Cheat Sheetsreion92
2013-03-02All The Cheat Sheetsg2e30
2013-03-15Programming Cheat SheetsFirst breakoutbuckwild23557
2013-03-25OverAPI: Collecting All Cheat Sheetsernestipark30
2013-11-05Collecting All Programming Cheat Sheetsfekberg30
2014-02-04OverAPI – Collecting All Cheat Sheetsgetdavidhiggins10
2014-09-30OverAPI is a site collecting all cheat sheetsdblacc10
2015-01-08Collecting all (API/language) cheat sheetsjmngomes20
2015-06-09Cheat sheets for all programming languages in one placeTiks20
2016-05-03Programming cheat sheetsHall induction · Best threaddonnemartin32446
2016-05-06Developer Cheat Sheet – OverAPI.comrman404030
2017-11-14Collecting all the cheat sheetsLatest 20+ point returnEnindu528