📖 Reference - Cheat Sheets for Developers

Reference is a collection of cheat sheets contributed by open source angels. It shares a quick reference cheat sheet for developers in a nice layout. [ 中文版 | ... ]

We encourage you to share your own cheat sheets with the community and make Reference even better. If you notice a cheat sheet that could be improved, feel free to submit a pull request.

👀 Live Demonstration

You can view the cheat sheets live at https://reference-ashy.vercel.app

📚 Cheat Sheets List

Reference provides cheat sheets for the following:

Programming

Kubernetes: This page contains a list of commonly used kubectl commands and flags.
ES6: A quick reference cheat sheet of what's new in JavaScript for ES2015, ES2016, ES2017, ES2018 and beyond
MATLAB: This quick reference cheat sheet provides an example introduction to using the MATLAB scientific computing language to get started quickly
C: C quick reference cheat sheet that provides basic syntax and methods.
INI: This is a quick reference cheat sheet for understanding and writing INI-format configuration files.
LaTeX: This cheat sheet summarizes a reference list of LaTeX commonly used display math notation and some application examples of KaTeX.
Rust: The Rust quick reference cheat sheet that aims at providing help on writing basic syntax and methods.
C#: C# quick reference cheat sheet that provides basic syntax and methods.
Laravel: Laravel is an expressive and progressive web application framework for PHP. This cheat sheet provides a reference for common commands and features for Laravel 8.
Dart: A Dart cheat sheet with the most important concepts, functions, methods, and more. A complete quick reference for beginners.
JSON: This is a quick reference cheat sheet for understanding and writing JSON format configuration files.
HTML: This HTML quick reference cheat sheet lists the common HTML and HTML5 tags in readable layout.
GraphQL: This quick reference cheat sheet provides a brief overview of GraphQL.
C++: C++ quick reference cheat sheet that provides basic syntax and methods.
Java: This cheat sheet is a crash course for Java beginners and help review the basic syntax of the Java language.
PHP: This PHP cheat sheet provides a reference for quickly looking up the correct syntax for the code you use most frequently.
Docker: This is a quick reference cheat sheet for Docker. And you can find the most common Docker commands here.
TOML: This is a quick reference cheat sheet to the TOML format configuration file syntax.
YAML: This is a quick reference cheat sheet for understanding and writing YAML format configuration files.
CSS 3: This is a quick reference cheat sheet for CSS goodness, listing selector syntax, properties, units and other useful bits of information.
jQuery: This jQuery cheat sheet is a great reference for both beginners and experienced developers.
JavaScript: A JavaScript cheat sheet with the most important concepts, functions, methods, and more. A complete quick reference for beginners.
Python: The Python cheat sheet is a one-page reference sheet for the Python 3 programming language.
Sass: This is a quick reference cheat sheet that lists the most useful features of SASS.
Go: This cheat sheet provided basic syntax and methods to help you using Go.
Markdown: This is a quick reference cheat sheet to the Markdown syntax.
Bash: This is a quick reference cheat sheet to getting started with linux bash shell scripting.

Toolkit

ChatGPT: This cheat sheet lists out prompts and tips from all over the world on how to use ChatGPT effectively
VSCode: This VSCode (Visual Studio Code) quick reference cheat sheet shows its keyboard shortcuts and commands.
Mitmproxy: mitmproxy is a free and open source interactive HTTPS proxy. This is a quick reference cheat sheet to the mitmproxy.
XPath: This is an XPath selectors cheat sheet, which lists commonly used XPath positioning methods and CSS selectors
Emacs: Emacs is the extensible, customizable, self-documenting real time display text editor. This reference was made for Emacs 27.
Emmet: Emmet is a web-developer’s toolkit for boosting HTML & CSS code writing, which allows you to write large HTML code blocks at speed of light using well-known CSS selectors.
RegEX: A quick reference for regular expressions (regex), including symbols, ranges, grouping, assertions and some sample patterns to get you started.
Vim: A useful collection of Vim 8.2 quick reference cheat sheets to help you learn vim editor faster.

Linux Command

Curl: This Curl cheat sheet contains commands and examples of some common Curl tricks.
PM2: [PM2] is a daemon process manager that will help you manage and keep your application online. Getting started with PM2 is straightforward, it is offered as a simple and intuitive CLI.
Chmod: This quick reference cheat sheet provides a brief overview of file permissions, and the operation of the chmod command
Tmux: The tmux cheat sheet quick reference of most commonly used shortcuts and commands
Lsof: This quick reference cheat sheet provides various for using lsof command.
SSH: This quick reference cheat sheet provides various for using SSH.
Netstat: This quick reference cheat sheet provides various for using netstat command.
Screen: This is a quick reference guide cheat sheet for the screen command.
Awk: This is a one page quick reference cheat sheet to the GNU awk, which covers commonly used awk expressions and commands.
Find: This is a quick reference list of cheat sheet for linux find command, contains common options and examples.
Sed: Sed is a stream editor, this sed cheat sheet contains sed commands and some common sed tricks.
Cron: Cron is most suitable for scheduling repetitive tasks. Scheduling one-time tasks can be accomplished using the associated at utility.
Git: This cheat sheet summarizes commonly used Git command line instructions for quick reference.
Grep: This cheat sheet is intended to be a quick reminder for the main concepts involved in using the command line program grep and assumes you already understand its usage.
Netcat: This cheat sheet provides various for using Netcat on both Linux and Unix.

Python

Numpy: NumPy is the fundamental package for scientific computing with Python. This cheat sheet is a quick reference for NumPy beginners.

Database

Neo4j: A Neo4j cheat sheet with getting started resources and information on how to query the database with Cypher.
PostgreSQL: The PostgreSQL cheat sheet provides you with the common PostgreSQL commands and statements.
Redis: This is a redis quick reference cheat sheet that lists examples of redis commands
MySQL: The SQL cheat sheet provides you with the most commonly used SQL statements for your reference.

Keyboard Shortcuts

Adobe Photoshop: A visual cheat-sheet for the 283 keyboard shortcuts found in Adobe Photoshop
Apex Legends: A visual cheat-sheet for the 27 default keyboard shortcuts found in Apex Legends
Figma: A visual cheat-sheet for the 119 keyboard shortcuts found in Figma
Microsoft Teams: A visual cheat-sheet for the 38 keyboard shortcuts found in Microsoft Teams
TablePlus: A visual cheat-sheet for the 34 keyboard shortcuts found in TablePlus
Bear: A visual cheat-sheet for the 66 keyboard shortcuts found in Bear. This application is MacOS-only.
Feedly: A visual cheat-sheet for the 25 keyboard shortcuts found on the Feedly app
FileZilla: A visual cheat-sheet for the 30 keyboard shortcuts found on the FileZilla program
Reddit: A visual cheat-sheet for the 17 keyboard shortcuts found on Reddit.com
Slack: A visual cheat-sheet for the 62 keyboard shortcuts found in Slack
SoundCloud: A visual cheat-sheet for the 22 keyboard shortcuts found on SoundCloud
Twitter: A visual cheat-sheet for the 26 keyboard shortcuts found on Twitter
Android Studio: A visual cheat-sheet for the 130 keyboard shortcuts found in the Andriod Studio software
Github: A visual cheat-sheet for the 80 keyboard shortcuts found on Github.com
Shopify: A visual cheat-sheet for the 50 keyboard shortcuts found on the Shopify website
Zoom: A visual cheat-sheet for the 32 keyboard shortcuts found in Zoom. These shortcuts are for MacOS, for Windows visit /zoom-windows.
Adobe XD: A visual cheat-sheet for the 97 keyboard shortcuts found in Adobe XD
Firefox: A visual cheat-sheet for the 116 keyboard shortcuts found in Firefox
PhpStorm: A visual cheat-sheet for the 96 keyboard shortcuts found in JetBrains PhpStorm
Postman: A visual cheat-sheet for the 23 keyboard shortcuts found in Postman
Webflow: A visual cheat-sheet for the 41 keyboard shortcuts found in Webflow
Adobe Lightroom CC: A visual cheat-sheet for the 251 keyboard shortcuts found in Adobe Lightroom CC
1Password: A cheat sheet for 1password's keyboard shortcuts in Mac, Windows, iOS, Linux.
Affinity Designer: A visual cheat-sheet for the 108 keyboard shortcuts found in Affinity Designer
Pocket: A visual cheat-sheet for the 36 keyboard shortcuts found on Pocket for Web
Trello: A visual cheat-sheet for the 29 keyboard shortcuts found on Trello
Audacity: A visual cheat-sheet for the 135 default keyboard shortcuts found in Audacity
Framer X: A visual cheat-sheet for the 45 keyboard shortcuts found in Framer X. This application is MacOS-only.
Google Drive: A visual cheat-sheet for the 54 keyboard shortcuts found in Google Drive on the web
PuTTy: A visual cheat-sheet for the 32 keyboard shortcuts found on the PuTTy app
Sequel Pro: A visual cheat-sheet for the 71 keyboard shortcuts found in Sequel Pro. This application is MacOS-only.
Apple Music: A visual cheat-sheet for the 62 keyboard shortcuts found in the Apple Music app. This application is MacOS-only.
Blender: A visual cheat-sheet for the 187 keyboard shortcuts found in Blender
Obsidian: A visual cheat-sheet for the 17 keyboard shortcuts found in the Obsidian knowledge base app.
Telegram Desktop: A visual cheat-sheet for the 37 keyboard shortcuts found on the Telegram Desktop app
YouTube: A visual cheat-sheet for the 18 keyboard shortcuts found on YouTube.com
Airtable: A visual cheat-sheet for the 36 keyboard shortcuts found in Airtable
Bitbucket: A visual cheat-sheet for the 35 keyboard shortcuts found on Bitbucket
Fortnite: A visual cheat-sheet for the 26 default keyboard shortcuts found in Fortnite
Gmail: A visual cheat-sheet for the 90 keyboard shortcuts found on Gmail
Sketch: A visual cheat-sheet for the 149 keyboard shortcuts found in Sketch. This application is MacOS-only.
Spotify: A visual cheat-sheet for the 23 keyboard shortcuts found in Spotify
Brave Browser: A visual cheat-sheet for the 64 keyboard shortcuts found in the Brave browser
KanbanMail: A visual cheat-sheet for the 29 keyboard shortcuts found in KanbanMail
Microsoft Outlook: A visual cheat-sheet for the 210 keyboard shortcuts found in Microsoft Outlook
Principle: A visual cheat-sheet for the 30 keyboard shortcuts found in Principle. This application is MacOS-only.
Skype: A visual cheat-sheet for the 31 keyboard shortcuts found in Skype
Arduino IDE: A visual cheat-sheet for the 12 keyboard shortcuts found in the Arduino IDE
Asana: A visual cheat-sheet for the 40 keyboard shortcuts found in Asana
Code Editor for iOS: A visual cheat-sheet for the 43 keyboard shortcuts found in the Code Editor for iOS app. This application is MacOS-only.
Jira: A visual cheat-sheet for the 44 keyboard shortcuts found in Jira
Quip.com: A visual cheat-sheet for the 52 keyboard shortcuts found in Quip
WordPress: A visual cheat-sheet for the 34 keyboard shortcuts found in the WordPress visual editor
Chrome Developer Tools: A visual cheat-sheet for the 56 keyboard shortcuts found in Chrome's Developer Tools
GIMP: A visual cheat-sheet for the 97 keyboard shortcuts found in GIMP
Google Chrome: A visual cheat-sheet for the 65 keyboard shortcuts found in Google Chrome
Todoist: A visual cheat-sheet for the 37 keyboard shortcuts found in Todoist
TickTick: A visual cheat-sheet for the 25 keyboard shortcuts found in the TickTick desktop app
VLC Player: A visual cheat-sheet for the 82 keyboard shortcuts found in VLC Player
Missive: A visual cheat-sheet for the 83 keyboard shortcuts found in Missive
Origami Studio: A visual cheat-sheet for the 71 keyboard shortcuts found in Origami Studio. This application is MacOS-only.
Sublime Text: A visual cheat-sheet for the 49 keyboard shortcuts found in Sublime Text
Transmit: A visual cheat-sheet for the 62 keyboard shortcuts found in Transmit. This application is MacOS-only.
Affinity Photo: A visual cheat-sheet for the 177 keyboard shortcuts found in Affinity Photo
Monday.com: A visual cheat-sheet for the 24 keyboard shortcuts found on Monday.com
Proto.io: A visual cheat-sheet for the 48 keyboard shortcuts found in Proto.io
Superhuman: A visual cheat-sheet for the 105 keyboard shortcuts found in Superhuman. This application is MacOS-only.
Vivaldi Browser: A visual cheat-sheet for the 69 default keyboard shortcuts found in the Vivaldi browser
Finder: A visual cheat-sheet for the 55 keyboard shortcuts found in Finder. This application is part of MacOS.
GitLab: A visual cheat-sheet for the 58 keyboard shortcuts found in GitLab
Guitar Pro: A visual cheat-sheet for the 129 keyboard shortcuts found in Guitar Pro
Roam Research: A visual cheat-sheet for the 45 keyboard shortcuts found on Roam Research
SketchUp Pro: A visual cheat-sheet for the 135 default keyboard shortcuts found in SketchUp Pro
Unity 3D: A visual cheat-sheet for the 50 keyboard shortcuts found in Unity 3D
IntelliJ IDEA: IntelliJ IDEA is a very good Java IDE, most of its commands have shortcuts to keep your hands from leaving the keyboard
WebStorm: This quick reference cheat sheet lists the default keyboard shortcuts for WebStorm running on Windows/Linux or Mac

Other

Google Search: This quick reference cheat sheet lists of Google advanced search operators.
ASCII Code: This cheat sheet is a complete list of ASCII Code Table with their numbers and names.
Aspect Ratio: This cheat sheet lists some common aspect ratios and their pixel resolutions. Always confirm your final delivery ratio when shooting.
HTML Characters Entities: This cheat sheet is a complete list of HTML entities with their numbers and names. Also included is a full list of ASCII characters that can be represented in HTML.
ISO 639-1 Language Code: This is a list of the ISO language codes that conform to the ISO 639-1 standard, it provide reference for multi-language website.
Resolutions: This cheat sheet lists screen sizes, viewport size and CSS media queries for popular Phones, Tablets, Laptops and Watches
HTTP Status Code: The http status codes cheat sheet. a quick reference to every HTTP status code.
Emoji: Some of the emoji codes are not super easy to remember, so here is a little cheat sheet.
QuickRef: This is the magic syntax variant manual that you can use on QuickRef.ME, It's a good practice for contributors.
MIME types: This cheat sheet lists some common MIME types for the Web. You can look in the IANA/MIME Media Types registry which contains all registered MIME types.

🗂️ Directory structure

.
├── source
│   ├── _posts   # Cheat sheet source files
│   │   ├── awk.md
│   │   ├── vim.md # => https://quickref.me/vim
│   │   ├── php.md
│   │   ├── css.md # => https://quickref.me/css
│   │   ├── ...
│   └── widget   # Widget files
│       └── chmod.html
├── public       # Distribution files
├── _config.yml
├── gulpfile.js
├── package.json
├── postcss.config.js
├── tailwind.config.js
└── themes
    └── coo      # Theme files

🤝 Contributing

We would like to extend our gratitude to you for considering a contribution to Reference. Your support is what makes QuickRef.ME a truly amazing resource. Please feel free to submit issues and enhancement requests.

For consistency, we encourage you to refer to the https://quickref.me/quickref when creating or editing cheat sheets. To get started with development, follow these steps:

Clone Github repo git clone https://github.com/Fechin/reference.git
Install npm package manager (Read installation guide)
Run npm install in the root folder to install dependencies.
Run npm run dev to start a dev server. This serves the project and live reloads when any files are changed, then visit http://127.0.0.1:4000 preview.
Submit a pull request and wait for it to be reviewed and merged.

To create or edit a cheat sheet, you'll need to create or edit a markdown file in source/_posts/{filename}.md. The file should include a front matter section with the following format:

---
title: QuickRef
date: 2020-11-25 18:28:43
icon: icon-style
background: bg-emerald-600
tags:
categories:
- Other
  intro: This is a reference of styles that you can use on quickref cheat sheets!
---

Only the title and intro fields are required, and the other options can be left blank.

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📃 License

The project is licensed under the MIT License and is maintained by Fechin.