Zeal - Offline documentation browser. Your personal reference library, searchable in an instant.

Zeal is an offline documentation browser: your personal reference library, searchable in an instant.

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Version 0.8.1

Zeal offers 981 docsets

ABAP (user contributed)

Ack (cheatsheet)

ACL2 (user contributed)

ActionScript

Ada (user contributed)

Adobe Experience Manager (user contributed)

Agora C++ (user contributed)

Agora Electron (user contributed)

Agora Java (user contributed)

Agora Objective-C (user contributed)

Agora Recording C++ (user contributed)

Agora Recording Java (user contributed)

Agora Web (user contributed)

aiohttp (user contributed)

aiomultiprocess (user contributed)

aiotg (user contributed)

Airflow (user contributed)

Akka

Alembic (user contributed)

Alfred (user contributed)

Alpine.js (user contributed)

AlsaLib (user contributed)

Altair (user contributed)

Amazon Redshift Database Developer Guide (user contributed)

Amethyst (cheatsheet)

Ampersand.js (user contributed)

Android (Kotlin)

Android Codenames, Tags and Build Numbers (cheatsheet)

Android Emulator (cheatsheet)

Android Gradle Plugin (user contributed)

Android KTX (user contributed)

Angr (user contributed)

Angular

AngularJS

Ansible

Ansible (cheatsheet)

Ant Design (user contributed)

Apache Ant (user contributed)

Apache Avro (user contributed)

Apache Beam Python (user contributed)

Apache Cassandra (user contributed)

Apache Commons Collections (user contributed)

Apache Commons CSV (user contributed)

Apache Commons Lang (user contributed)

Apache Commons Math (user contributed)

Apache Commons Text (user contributed)

Apache Hive (user contributed)

Apache HTTP Server

Apache Mesos (user contributed)

Apache Nifi (user contributed)

Apache POI (user contributed)

Apache RocketMQ (user contributed)

Apex (user contributed)

Appcelerator Titanium

AppCode (cheatsheet)

AppleScript

Arc Lisp (user contributed)

Arduino

Arm A-Profile A32 and T32 ISA (user contributed)

Arm A-Profile A64 ISA (user contributed)

Arm A-Profile A64 ISA for Future Architecture Technologies (user contributed)

Arm A-Profile System Registers (user contributed)

Arm A-Profile System Registers for Future Architecture Technologies (user contributed)

Arm Morello A64 ISA (user contributed)

Arm Morello System Registers (user contributed)

arviz (user contributed)

ASCII Tables (cheatsheet)

AsciiDoctor (cheatsheet)

Astropy (user contributed)

Async.js (user contributed)

Atom (cheatsheet)

Atom (user contributed)

AtomFlightManual (user contributed)

attrs (user contributed)

AutoHotkey (user contributed)

AutoIt (user contributed)

Automaton (user contributed)

AVR Libc (user contributed)

AWS CDK (user contributed)

AWS CDK Python (user contributed)

AWS CLI (user contributed)

AWS CloudFormation Template Reference (user contributed)

AWS JavaScript

AWS Redshift SQL Reference (user contributed)

Axios (cheatsheet)

Azure Resource Manager Template Reference (user contributed)

Babylon.JS (user contributed)

BackboneJS

Bacon.js (user contributed)

balana-core (user contributed)

balana-utils (user contributed)

Bambi (user contributed)

Bash

Bash Shortcuts (cheatsheet)

Bash Test Operators (cheatsheet)

Basscss (user contributed)

Bazel (user contributed)

Beautiful Soup (user contributed)

BigQuery Standard SQL (user contributed)

Bitcoin (user contributed)

Blaze (user contributed)

Blender (cheatsheet)

Blender (user contributed)

Blender Python API (user contributed)

Bluebird (user contributed)

Bokeh (user contributed)

bonobo (user contributed)

Boost

Bootstrap 2

Bootstrap 3

Bootstrap 4

Bootstrap 5

Bootstrap Vue (user contributed)

boto (user contributed)

boto3 (user contributed)

Bottle (user contributed)

Bourbon

Box2D (user contributed)

Brackets (cheatsheet)

Bridgetown (user contributed)

Brk Fonts (user contributed)

Brunch (user contributed)

Bullet (user contributed)

Bulma (user contributed)

BungeeCordAPI (user contributed)

BungeeCordChat (user contributed)

C++

C++ Embedded Template Library (user contributed)

CakePHP

Can I use… (user contributed)

CanJS (user contributed)

CAPI (user contributed)

Cappuccino

Capybara (cheatsheet)

Carbon (user contributed)

Cargo (cheatsheet)

Carthage (cheatsheet)

Cascading (user contributed)

CausalPy (user contributed)

Celery (user contributed)

Cesium (user contributed)

CFWheels (user contributed)

Chai

Chainer (user contributed)

Chart.js (user contributed)

chartjs-plugin-datalabels (user contributed)

Chassis (user contributed)

Chef

Chemical Elements (cheatsheet)

Chrome Developer Tools (cheatsheet)

Chrome Extensions API (user contributed)

Chromium Command Line Switches (cheatsheet)

Cinder (user contributed)

CircleCI Standard Variables (cheatsheet)

Clang (user contributed)

Claude Code (user contributed)

click (user contributed)

ClickHouse (user contributed)

Clojure

ClojureDocs (user contributed)

ClojureScript (user contributed)

CMake

Cocos2D

Cocos2D-X

Cocos3D

CodeIgniter

CodeMirror (user contributed)

CoffeeScript

ColdFusion

Common Lisp

Compass

ComponentKit (user contributed)

Conan (user contributed)

concourse-ci (user contributed)

Conda (cheatsheet)

Conda (user contributed)

confluent-kafka-python (user contributed)

Connect IQ SDK (user contributed)

Constraid (user contributed)

Consul (user contributed)

Conventional Commits (cheatsheet)

Coq (user contributed)

Cordova

Corona

CouchDB

CQL for Apache Cassandra (user contributed)

Craft

Crontab (cheatsheet)

Crystal (user contributed)

CSS

CSS Device Media Queries (cheatsheet)

CSS Named Colors (cheatsheet)

CUDA (user contributed)

CUDA C (cheatsheet)

cvxpy (user contributed)

Cython (user contributed)

D (user contributed)

D3JS

Dart

Dask (user contributed)

date-fns (user contributed)

debmake (user contributed)

Defold (user contributed)

Deno (user contributed)

dfply (user contributed)

Diesel (user contributed)

discord.js (user contributed)

discord.py (user contributed)

Discord4J (user contributed)

Distributed (user contributed)

DisVoice (user contributed)

DITA (user contributed)

Django

Django REST Framework (user contributed)

djangoCMS Documentation (user contributed)

docassemble (user contributed)

Docker

Docker (cheatsheet)

Dockerfile (cheatsheet)

Doctrine

Dojo

DokuWiki (user contributed)

dolfin (user contributed)

DPDK (user contributed)

Draft.js (user contributed)

Drupal

Drupal Console (user contributed)

Drush (user contributed)

DuckDB (user contributed)

dzil (cheatsheet)

ECharts (Chinese) (user contributed)

ECharts (user contributed)

Editorial (user contributed)

Effect (user contributed)

eggjs (Chinese) (user contributed)

eggjs (user contributed)

EGL (user contributed)

Eigen (user contributed)

Einops (user contributed)

ElasticSearch

Electron (user contributed)

Elektra (user contributed)

Elixir

Elixir Guards (cheatsheet)

Elm (user contributed)

Elvish (user contributed)

Emacs (cheatsheet)

Emacs (user contributed)

Emacs Lisp

EmberJS

Emerge (cheatsheet)

EMF XSD SDK (user contributed)

Emmet

Emoji (cheatsheet)

Entitas (user contributed)

Entity Framework (user contributed)

Envoy (user contributed)

Enzyme (user contributed)

equinox (user contributed)

Erlang

ESLint (user contributed)

Esoftplay (user contributed)

Esper (user contributed)

Expo (user contributed)

Express

ExpressionEngine

ExpressionEngine Parse Order (cheatsheet)

ExtJS

Faker (user contributed)

Falcon (user contributed)

FastMCP (user contributed)

feedparser (user contributed)

FFmpeg (user contributed)

FileMaker (user contributed)

Final Cut Pro (cheatsheet)

fiona (user contributed)

fish (user contributed)

Flask

FlaxLinen (user contributed)

FlaxNNX (user contributed)

Flex (user contributed)

Flow (user contributed)

FLTK (user contributed)

Flux (user contributed)

Font Awesome

Font Awesome (cheatsheet)

FormEncode (user contributed)

Foundation

Foundation for Emails (user contributed)

fp-ts (user contributed)

Framework7 (user contributed)

FreeBSD Handbook (user contributed)

FreePascal (user contributed)

FSharp (cheatsheet)

GDAL (user contributed)

GDB (cheatsheet)

Geb (user contributed)

gensim (user contributed)

GeoTools (user contributed)

GeoTrellis (user contributed)

Gforth (user contributed)

ggplot2 (user contributed)

Ghidra (user contributed)

Git (cheatsheet)

Git Flow (cheatsheet)

Git Subversion (cheatsheet)

GitHub Actions (user contributed)

GitHub Pages (user contributed)

GitHub Security and code quality (user contributed)

Gitmoji (cheatsheet)

GLFW (user contributed)

GLib

GNU Autoconf (user contributed)

GNU Autoconf Archive (user contributed)

GNU Automake (user contributed)

GNU Bison (user contributed)

GNU C Library (user contributed)

GNU Coding Standards (user contributed)

GNU Coreutils (user contributed)

GNU Emacs Common Lisp Emulation (user contributed)

GNU Guile (user contributed)

GNU Guix (user contributed)

GNU Libtool (user contributed)

GNU Make (user contributed)

GNU Scientific Library (user contributed)

Godot (user contributed)

Golly (user contributed)

Google AdWords Image Ad Specifications (cheatsheet)

Google App Engine - PHP (user contributed)

Google App Engine - Python (user contributed)

Google Apps Script (user contributed)

Google Closure (user contributed)

Google Cloud Client Library for Python (user contributed)

Google Maps (user contributed)

Google Web Toolkit (user contributed)

Gradle DSL

Gradle Java API

Gradle User Guide

Grafx2 (cheatsheet)

Grails

GraphQL Specification (user contributed)

Greek Alphabet (cheatsheet)

Groovy

Groovy JDK

Grunt

GStreamer (user contributed)

gtkmm (user contributed)

Guava (user contributed)

Gulp

Haiku Book (user contributed)

Haml

Hammerspoon (user contributed)

Handlebars

Hapi (user contributed)

HAProxy (user contributed)

HAProxy Lua (user contributed)

Hashgraph Online (user contributed)

Haskell

Haxe (user contributed)

HaxeFlixel (user contributed)

Helix (cheatsheet)

Heron (user contributed)

Hiero (user contributed)

HipChat (cheatsheet)

Homebridge (user contributed)

HTML

HTML Entities (cheatsheet)

HTML Head Elements (cheatsheet)

HTTP

HTTP Header Fields (cheatsheet)

HTTP Status Codes (cheatsheet)

HTTP Status Codes for Rails (cheatsheet)

Hub (cheatsheet)

Hy Lang (user contributed)

Hypothesis (user contributed)

IBM_Maximo_JavaDocs (user contributed)

ICU (user contributed)

Idris (user contributed)

igraph (user contributed)

imbalanced-learn (user contributed)

Immutable.js (user contributed)

Intel Intrinsics (user contributed)

Intel x86_64 Assembly (user contributed)

IntelliJ Platform SDK (user contributed)

IntelliJ Shortcuts (cheatsheet)

invoke (user contributed)

io.js (user contributed)

Ionic

IonIcons (user contributed)

iOS Design (cheatsheet)

IPython (user contributed)

IPython Notebook (cheatsheet)

iTerm2 (cheatsheet)

J (user contributed)

Jakarta EE 10 (user contributed)

Jasmine

Jasmine-jQuery (cheatsheet)

Java

Java EE6

Java EE7

Java EE8

Java Lambda Syntax (cheatsheet)

Java Language Specification (user contributed)

Java SE10

Java SE11

Java SE12

Java SE13

Java SE14

Java SE15

Java SE16

Java SE17

Java SE18

Java SE19

Java SE20

Java SE21

Java SE22

Java SE23

Java SE24

Java SE25

Java SE6

Java SE7

Java SE8

Java SE9

JavaScript

jax (user contributed)

jBASE (user contributed)

JDA (user contributed)

Jekyll

Jenkins Job Builder (user contributed)

Jest (user contributed)

Jigsaw (user contributed)

Jinja

Jira Shortcuts (cheatsheet)

Joi (user contributed)

Joomla

jq (user contributed)

jQuery

jQuery Mobile

jQuery UI

JSDoc (user contributed)

JSON for Modern C++ (user contributed)

json-schema (user contributed)

JUCE (user contributed)

Julia

JUnit4 (user contributed)

JUnit5 (user contributed)

jupyter-book (user contributed)

jvm8-options (user contributed)

Kafka (user contributed)

Keras (user contributed)

Keybase.io (cheatsheet)

ki (user contributed)

Kirby (user contributed)

Kivy (user contributed)

KnockoutJS

koa (user contributed)

Kobold2D

kornia (user contributed)

Kotlin (user contributed)

KStreams (cheatsheet)

Kubernetes (cheatsheet)

Kubernetes (user contributed)

Laravel

Laravel Mix (user contributed)

Laravel Zero (user contributed)

LaTeX

LaTeX Math Symbols (cheatsheet)

Leaflet (user contributed)

Less

LessHat (user contributed)

Libav (user contributed)

libgdx (user contributed)

librosa (user contributed)

libssh (user contributed)

libuv (user contributed)

libxml2 (user contributed)

Licenses (cheatsheet)

LifterLMS (user contributed)

LightGBM (user contributed)

Linux Man Pages (user contributed)

LiveCode (user contributed)

LiveScript (user contributed)

LLDB Chisel Commands (cheatsheet)

LLDB Commands (cheatsheet)

LLDB to GDB Command Map (cheatsheet)

llm (user contributed)

LLVM (user contributed)

LMDB (user contributed)

Lo-Dash

Logstash (user contributed)

loopback (user contributed)

Love2d (user contributed)

Lua 5.1

Lua 5.2

Lua 5.3

Lua 5.4

Lua 5.5

Lua Nginx Module (user contributed)

lxml (user contributed)

Mac Startup Keys (cheatsheet)

MacPorts (cheatsheet)

MacPorts Guide (user contributed)

Magit for Emacs (cheatsheet)

MariaDB (user contributed)

Marimo (cheatsheet)

MarionetteJS

Markdown

Marshmallow (user contributed)

Mastodon (user contributed)

MatPlotLib

Matrix (user contributed)

mbed-drivers (user contributed)

MDAnalysis (user contributed)

MEAN.JS (user contributed)

Mediawiki (user contributed)

Mercurial (cheatsheet)

Meson (user contributed)

Meteor

Metric Prefixes (cheatsheet)

MIME Types (cheatsheet)

MindSpore (user contributed)

MiniZinc (user contributed)

Mjolnir (user contributed)

MLflow (user contributed)

mlpy (user contributed)

MLX (user contributed)

MNE (user contributed)

Mocha

Mockito (user contributed)

Modal (user contributed)

MODX (user contributed)

MomentJS

MongoDB

MongoEngine (user contributed)

Mongoose

MooTools

more-itertools (user contributed)

mori (user contributed)

MOS Protocol (user contributed)

MPICH (user contributed)

Mrjob (user contributed)

MS SQL (user contributed)

Mutt (cheatsheet)

MXNet (user contributed)

MyBatis (Chinese) (user contributed)

mypy (user contributed)

MySQL

NativeScript (user contributed)

ncurses (user contributed)

Neat

nengo (user contributed)

Neo4j (user contributed)

Neovim (user contributed)

Netcat (cheatsheet)

Nette Framework (user contributed)

Netty (user contributed)

NetworkX (user contributed)

Next.js (user contributed)

Nginx

Nightwatch.js (user contributed)

Nim (user contributed)

Nitrogen (user contributed)

Nix functions (user contributed)

NLTK (user contributed)

NodeJS

NodeMongoDB (user contributed)

Nomad (user contributed)

norns (user contributed)

nox (user contributed)

npm (cheatsheet)

npm (user contributed)

ns-3 (user contributed)

NSDateFormatter (cheatsheet)

NSPredicate (cheatsheet)

Numba (user contributed)

NumPy

Nvidia Warp (user contributed)

Objective-C (cheatsheet)

Objective-C @Compiler Directives (cheatsheet)

Objective-C Blocks (cheatsheet)

Obsidian (cheatsheet)

OCaml

OCMock (cheatsheet)

Octave (user contributed)

Odin (user contributed)

Odoo 10 (user contributed)

Odoo 8 (user contributed)

Odoo 9 (user contributed)

Oh-My-Zsh Git (cheatsheet)

Oh-My-Zsh Kubectl (cheatsheet)

OIM (user contributed)

OKD (user contributed)

Om (user contributed)

ON1 Photo RAW (cheatsheet)

OpenCL (user contributed)

OpenCV

OpenEdge (user contributed)

openFrameworks (user contributed)

OpenGL 2

OpenGL 3

OpenGL 4

OpenGL Extensions (user contributed)

OpenGL GLSL (user contributed)

OpenGL Mathematics (user contributed)

OpenLayers (user contributed)

OpenResty (user contributed)

OpenSCAD (cheatsheet)

openssl (cheatsheet)

OpenUI5 (user contributed)

Openvswitch (user contributed)

OpenXR (user contributed)

Optuna (user contributed)

Org Mode (user contributed)

Origami for Sublime Text (cheatsheet)

OTRS (user contributed)

p5js (user contributed)

Packer (user contributed)

Pandas

Pandoc (user contributed)

Paper (user contributed)

papermill (user contributed)

Parse iOS SDK (user contributed)

path.py (user contributed)

Pebble (user contributed)

Peewee (user contributed)

PeopleTools (user contributed)

Perl

Perl 6 (user contributed)

Phalcon

Phaser (user contributed)

Phaser-CE (user contributed)

PhoneGap

PHP

PHP (Deutsch) (user contributed)

PHP (Español) (user contributed)

PHP (Français) (user contributed)

PHP (Italiano) (user contributed)

PHP (Português Brasileiro) (user contributed)

PHP (Türkçe) (user contributed)

PHP (Русский) (user contributed)

PHP (Українська) (user contributed)

PHP (日本語) (user contributed)

PHP (简体中文) (user contributed)

phpSpec (cheatsheet)

PhpStorm (cheatsheet)

PHPUnit

PHPUnit in Laravel (cheatsheet)

PhysicsFS (user contributed)

pika (user contributed)

Pillow (user contributed)

Pin (user contributed)

Pixi (cheatsheet)

PlantUML (user contributed)

Play Java

Play Scala

PlayCanvas (user contributed)

Ploi API (user contributed)

Plone (user contributed)

plotnine (user contributed)

pnpm (user contributed)

Poco (user contributed)

polars (user contributed)

Polymer.dart

PostGIS (user contributed)

PostgreSQL

PostgreSQL CLI (cheatsheet)

PouchDB (user contributed)

Powershell (user contributed)

Praat (user contributed)

Presto (user contributed)

Prezto (cheatsheet)

Prezto Git (cheatsheet)

Processing

PrototypeJS

psycopg2 (user contributed)

Pug

puma-dev (cheatsheet)

pup (user contributed)

Puppet

Pure (user contributed)

Purpur (user contributed)

pwntools (user contributed)

Pydial (user contributed)

Pydoop (user contributed)

PyGame (user contributed)

Pygments (user contributed)

PyGraphviz (user contributed)

PyInstaller (user contributed)

pymatgen (user contributed)

PyMC (user contributed)

PyMC3 (user contributed)

PyMel (user contributed)

PyMongo (user contributed)

PyMuPDF (user contributed)

PyPDF (user contributed)

PyQGIS (user contributed)

pyqtgraph (user contributed)

Pyramid (user contributed)

pyro (user contributed)

pysam (user contributed)

PySide (user contributed)

pyspark (user contributed)

PyTables (user contributed)

pytest (user contributed)

Python (Chinese) (user contributed)

Python 2

Python 3

Python Debugger (cheatsheet)

Python Enhancement Proposals (user contributed)

Python Exceptions (cheatsheet)

Python Format Strings (cheatsheet)

Python Telegram Bot (user contributed)

Python unittest Assertions (cheatsheet)

python3-trepan (user contributed)

Pythonista (user contributed)

PyTorch (user contributed)

PyTorch-Geometric (user contributed)

PytorchLightning (user contributed)

Pywikibot (user contributed)

QEMU (user contributed)

QGIS (user contributed)

Qt 4

Qt 5

Qt 6

Qt for Python (PySide 2/PySide 6) (user contributed)

Quantum ESPRESSO (user contributed)

quimb (user contributed)

R5RS (user contributed)

Racket

Rails i18n (cheatsheet)

Rails Migrations CLI (cheatsheet)

Ramda (user contributed)

ranger (cheatsheet)

Raphael.js (user contributed)

Raspberry Pi Pico SDK (user contributed)

Raycast (user contributed)

RBQL (cheatsheet)

Re:VIEW (user contributed)

React

React Native (user contributed)

React Router (user contributed)

Realm Java (user contributed)

Redaxo (user contributed)

Redbeard (user contributed)

Redis

Redux (user contributed)

redux-saga (user contributed)

Regular Expressions (cheatsheet)

Relay (user contributed)

Remix (user contributed)

RenPy_Engine (user contributed)

Requests (user contributed)

Requests-HTML (user contributed)

RequireJS

Restify (user contributed)

RethinkDBJS (user contributed)

RFCs (user contributed)

ROS (cheatsheet)

RSMTool (user contributed)

RSpec Expectations (cheatsheet)

RuboCop (user contributed)

RuboCop Capybara (user contributed)

RuboCop factory_bot (user contributed)

RuboCop Minitest (user contributed)

RuboCop Packaging (user contributed)

RuboCop Performance (user contributed)

RuboCop Rails (user contributed)

RuboCop RSpec (user contributed)

RuboCop RSpec Rails (user contributed)

RuboCop ThreadSafety (user contributed)

Ruby

Ruby 2

Ruby 3

Ruby 4

Ruby on Rails 3

Ruby on Rails 4

Ruby on Rails 5

Ruby on Rails 6

Ruby on Rails 7

Ruby on Rails 8

Ruby strftime (cheatsheet)

RubyMotion

Rust

RxJava (user contributed)

RxJS (user contributed)

RxSwift (user contributed)

SailsJS

Salesforce Apex (user contributed)

Salesforce Lightning (user contributed)

Salesforce Visualforce (user contributed)

SaltStack

Salyut (Chinese) (user contributed)

Sass

Scala

ScalaFX (user contributed)

scikit-image (user contributed)

scikit-learn (user contributed)

SciPy

Scrapy (user contributed)

screen (cheatsheet)

Screeps (user contributed)

Scrivener (cheatsheet)

SDL (user contributed)

seaborn (user contributed)

Semantic Branches (cheatsheet)

Semantic Commits (cheatsheet)

Semantic UI

Sencha Touch

Sendmail Milter (user contributed)

Sequelize (user contributed)

Serverspec (user contributed)

shapely (user contributed)

Shogun Machine Learning Toolbox (user contributed)

Should.js (user contributed)

SilverStripe Templates (cheatsheet)

Sinon

SIP Response Codes (cheatsheet)

Siteleaf (cheatsheet)

Six (user contributed)

Skeleton (user contributed)

Sketch (cheatsheet)

Skyfield (user contributed)

Slim Framework (user contributed)

Smarty

SMTP Status Codes (cheatsheet)

Snap.svg (user contributed)

Snyk (cheatsheet)

Solarus (user contributed)

Solidity (user contributed)

Soot (user contributed)

Sourcetree (cheatsheet)

Spacemacs (user contributed)

Sparrow

SpeechBrain (user contributed)

Sphinx (user contributed)

Sphinx Search Server (user contributed)

SpigotMC (user contributed)

SPIR-V (user contributed)

Spring Boot (user contributed)

Spring Framework

SQLAlchemy

SQLite

SQLite (cheatsheet)

sqlite-utils (user contributed)

Standard ML (user contributed)

Statamic

statsmodels (user contributed)

Storm (user contributed)

Streamlit (user contributed)

strftime Format Codes (cheatsheet)

structlog (user contributed)

Stylus

Sublime Merge (user contributed)

Sublime Text (user contributed)

Sublime Text 2 (cheatsheet)

Sublime Text 3 (cheatsheet)

Sublime Text Plugin API (user contributed)

SUIT CSS Naming Conventions (cheatsheet)

SuperCollider (user contributed)

Susy

Svelte (user contributed)

SVG

SWI Prolog (user contributed)

Swift

Swift (cheatsheet)

Swift Language Guide (user contributed)

Swift Package Manager (user contributed)

Swoole (Chinese) (user contributed)

Symfony

Symfony Docs (user contributed)

SymPy (user contributed)

Tailwind CSS (user contributed)

Tcl

TCLAP (user contributed)

TensorFlow (user contributed)

TensorFlow 2 (user contributed)

TensorFlow Probability (user contributed)

Terraform (user contributed)

Textastic (cheatsheet)

Theano (user contributed)

Things (cheatsheet)

ThinkJS (user contributed)

Three.js (user contributed)

Tiki (user contributed)

tldr pages (user contributed)

tmux (cheatsheet)

torchaudio (user contributed)

TorchMetrics (user contributed)

torchtext (user contributed)

torchvision (user contributed)

Tornado

Tower (cheatsheet)

toyplot (user contributed)

Transformers (user contributed)

Trello (cheatsheet)

Trino (user contributed)

Triton (user contributed)

tsdoc (user contributed)

Twig

Twisted

TypeScript

TYPO3

UIKit (user contributed)

UnderscoreJS

Unicode Characters (user contributed)

Unity 3D

Unix File Permissions (cheatsheet)

Unreal Engine 4 (user contributed)

Updeep (user contributed)

uv (user contributed)

UVM (user contributed)

uWSGI (user contributed)

Vaadin (user contributed)

Vagrant

Varnish (user contributed)

Vault (user contributed)

vCloud Director (user contributed)

Vega (user contributed)

Vega-Lite (user contributed)

Velocity (user contributed)

VHDL93 (user contributed)

Vibe.d (user contributed)

Vim

Vim (cheatsheet)

Vim (Chinese) (cheatsheet)

VimBox (cheatsheet)

Vimdiff (cheatsheet)

virtualenv (user contributed)

Visidata (cheatsheet)

Visual Studio Code (cheatsheet)

Visual Studio Code (user contributed)

Visualforce (user contributed)

VMware vSphere

VueJS

Vulkan (user contributed)

Wagtail (user contributed)

Wand (user contributed)

WebApp2 (user contributed)

WebExtensions (user contributed)

WebOb (user contributed)

webpack (user contributed)

WebSocket Status Codes (cheatsheet)

WebTest (user contributed)

Werkzeug (user contributed)

WooCommerce (user contributed)

WordPress

Working Copy (cheatsheet)

WP-CLI (user contributed)

WPILib (user contributed)

WPS (user contributed)

wxPython (user contributed)

wxWidgets (user contributed)

xarray (user contributed)

Xcode (cheatsheet)

Xcode UI Testing (cheatsheet)

XCTest (user contributed)

Xdebug (user contributed)

XGBoost (user contributed)

XMake (user contributed)

Xojo

Xojo (user contributed)

XSLT

YAML (cheatsheet)

Yard (cheatsheet)

Yarn (user contributed)

Yazi (cheatsheet)

Yii

You Might Not Need jQuery (cheatsheet)

YUI

Zend Framework 1

Zend Framework 2

Zend Framework 3

ZeptoJS

Zig (user contributed)

Zimbra SOAP API (user contributed)

Zimbra Zimlet API (user contributed)

Zsh (user contributed)

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