21 essential cheatsheets for Developers in 2021

21 essential cheatsheets for Developers in 2021


3 min read

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Essentially, programmers have a great deal of stuff to recall. It's normal quicker to go to the web for answers than to invest energy trying out their own answers. Also, designers who work in groups regularly need to look into specific orders and dialects, particularly when altering others' code.

That is the reason engineers of all expertise levels know about the force of the all-strong cheat sheet. As great as it might feel to concoct the specific right line of code on your first attempt, or review how a past bug was fixed from memory, that is not generally reality.

As a developer, you will depend on a scope of asset advisers for discover answers for normal errors, and that is alright.

DZONE Refcardz

Largest libraries of cheatsheets

JavaScript comprehensive cheatsheet with PDF

From basic to advanced concepts. ES6+, simple explanations, DOM API, Event loop, functions, array, object, Type and so much more. Everything explained in this 13 page JavaScript Cheatsheet

Awesome Cheatsheets

Awesome cheatsheets for popular programming languages, frameworks and development tools. They include everything you should know in one single file. ๐Ÿ‘ฉโ€๐Ÿ’ป๐Ÿ‘จโ€๐Ÿ’ป

VUE Cheatsheet

Cool visual flexbox cheatsheet

Learn all about the properties available in flexbox through simple visual examples.

HTML5 Security Cheatsheet

HTML5 Security Cheatsheet - A collection of HTML5 related XSS attack vectors


It's just another top website for cheatsheets.

Cheatsheet for designers and Developers

40 Essential Cheatsheets for Web Designers and Developers

HTML Element Cheatsheet

This is a quick reference of elements that are new or have been redefined in HTML5.

awesome cheatsheet

From project management to Security to Tools to Databases to Backend and Frontend development to programming languages covering everything with amazing cheatsheets.


A collection of interactive cheatsheets.

Rico's Cheatsheet

A modest collection of cheatsheets written by Rico.

MODERN JS Cheatsheet

Cheatsheet for the JavaScript knowledge you will frequently encounter in modern projects.

David's PHP CheatSheet

A quick reference guide for PHP, with functions references, a regular expression syntax guide and a reference for PHP's date formating functions.


A dead simple git cheatsheet.

Ultimate Flexbox cheatsheet

Learn Flexbox with 30 Code Tidbits โœจ

HTML Cheatsheet

Online interactive HTML Cheat Sheet contains useful code examples and web developer tools, markup generators and more.

Media Queries Cheatsheet

Modern PHP Cheat Sheet

This sample is an excerpt from the ebook Front Line PHP.

CSS Animation Cheatsheet

The CSS3 Animation Cheat Sheet is a set of preset, plug-and-play animations for your web projects

WebDev SEO CheatSheet

A must know SEO cheatsheet for Developers

In the realm of PC programming, there are regularly different approaches to accomplish a similar outcome, and it never damages to pursue a faster route when you can. Ideally these cheat sheets accelerate your interaction and assist you with tidying up your code.

These apparatuses joined will make you a more innovative, certain, and proficient web designer.