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StackOverflow Developer Survey 2021

Professional Developers

Programming, scripting, and markup languages

JavaScript
HTML/CSS
SQL
Python
TypeScript
Node.js
Java
C#
Bash/Shell
PHP
C++
C
Go
Ruby
Rust
Dart

Databases

MySQL
PostgreSQL
SQLite
Microsoft SQL Server
MongoDB
Redis
MariaDB
Firebase
Elasticsearch
Oracle
DynamoDB

Cloud Platforms

AWS
Google Cloud Platform
Microsoft Azure
Heroku
DigitalOcean

Web Frameworks and technologies

React.js
JQuery
Angular
Express
ASP.NET Core
Vue.js
ASP.NET
Spring
Flask
Django
Angular.js
Laravel
Ruby on Rails

Other Frameworks and technologies

.NET Framework
.NET Core
Numpy
Pandas
React Native
TensorFlow
Flutter
Torch/PyTorch

Other Tools

Git
Docker
Yarn
Kubernetes
Unity 3D

Integrated development environment (IDE)

Visual Studio Code
Visual Studio
IntelliJ
Notepad++
Vim
Android Studio
Sublime Text
PyCharm
Eclipse

Asynchronous tools

Jira Work Management
Confluence
Trello
Notion

Synchronous tools

Slack
Microsoft Teams
Zoom
Google Chat

Most loved, dreaded

Programming, Scripting, and markup languages

Rust
Clojure
TypeScript
Elixir
Julia
Python
Dart
Swift
Node.js
Go
F#
C#
SQL
Kotlin
JavaScript
HTML/CSS
Bash/Shell
Ruby
C++
Java
PHP
C

Database

Redis
PostgreSQL
MongoDB
Elasticsearch
Firebase
DynamoDB
MariaDB
SQLite
Microsoft SQL Server
MySQL

Cloud Platform

AWS
Google Cloud Platform
Microsoft Azure
DigitalOcean
Heroku

Web Frameworks

Svelte
ASP.NET Core
FastAPI
React.js
Vue.js
Express
Spring
Ruby on Rails
Angular
Django

Other Frameworks

.NET Core
Flutter
Torch/PyTorch
Pandas
NumPy
Keras
TensorFlow

Other Tool

Git
Docker
Kubernetes
Terraform
Deno
Pulumi
Yarn
Unity 3D
Unreal Engine

Collaboration tools

Neovim
Visual Studio Code
Rider
Vim
Emacs
IntelliJ
IPython/Jupyter
WebStorm
PyCharm
Visual Studio
RubyMine
PHPStorm
Notepad++

Top paying technologies

Programming, Scripting and markup languages

Databasess

DynamoDB - $80,936
Elasticsearch - $67,021
Cassandra - $64,930
Redis - $64,548
IBM DB2 - $64,044
Couchbase - $63,018
PostgreSQL - $59,454
Microsoft SQL Server - $58,167
SQLite - $51,704
Oracle - $48,644
MariaDB - $45,678
MongoDB - $45,401
MySQL - $43,404
Firebase - $37,834

Platformss

AWS - $66,810
Microsoft Azure - $64,630
Google Cloud Platform - $55,600
IBM Cloud or Watson - $52,942
Oracle Cloud Infrastructure - $51,888
DigitalOcean - $51,704
Heroku - $45,000

Web Frameworkss

Ruby on Rails - $77,556
Svelte - $62,520
ASP.NET Core - $60,744
Gatsby - $60,129
React.js - $58,128
ASP.NET - $56,220
Flask - $54,876
FastAPI - $54,049
Spring - $51,888
Drupal - $51,429
Vue.js - $50,000
Angular.js - $49,450
Angular - $48,852
Express - $47,850
jQuery - $45,797
Symfony - $45,396
Django - $45,379
Laravel - $29,196

Other Frameworkss

Apache Spark - $67,464
.NET Core / .NET 5 - $62,520
Hadoop - $60,624
.NET Framework - $59,185
NumPy - $54,049
Pandas - $54,049
Torch/PyTorch - $52,869
Qt - $51,888
TensorFlow - $50,000
Keras - $45,396
React Native - $44,160
Cordova - $39,192
Flutter - $32,429

Other Toolss

Pulumi - $109,824
Terraform - $90,482
Chef - $90,000
Puppet - $76,000
Kubernetes - $75,000
Ansible - $72,000
Deno - $64,859
Docker - $63,469
Yarn - $57,696
Git - $56,798
Flow - $51,887
Xamarin - $51,704
Unreal Engine - $49,228
Unity 3D - $45,396

Collaboration toolss

TextMate - $80,000
Emacs - $77,832
RubyMine - $70,264
Rider - $68,724
Vim - $67,452
Neovim - $67,052
IntelliJ - $56,427
Xcode - $55,680
Visual Studio - $55,224
RStudio - $54,289
Visual Studio Code - $54,000
IPython/Jupyter - $52,942
PyCharm - $51,228
Notepad++ - $50,262
Webstorm - $49,725
Sublime Text - $45,401
Atom - $45,396
Eclipse - $41,508
PHPStorm - $39,768
Android Studio - $38,508
NetBeans - $25,128

Summary

Programming, scripting, and markup languages -
- [Professional] JavaScript, HTML/CSS, SQL, Python, TypeScript, Node.js, Java
- [Loved] Rust, Clojure, TypeScript, Elixir, Julia, Python, Dart
- [Top Paying] Clojure, F#, Elixir, Erlang, Perl, Ruby, Rust, Go
Databases -
- [Professional] MySQL, PostgreSQL, SQLite, Microsoft SQL Server, MongoDB, Redis
- [Loved] Redis, PostgreSQL, MongoDB, Elasticsearch, Firebase, DynamoDB
- [Top Paying] DynamoDB, Elasticsearch, Cassandra, Redis
Platforms -
- [Professional] AWS, Google Cloud Platform, Microsoft Azure
- [Loved] AWS, Google Cloud Platform, Microsoft Azure
- [Top Paying] AWS, Microsoft Azure, Google Cloud Platform
Web Frameworks -
- [Professional] React.js, Jquery, Angular, ASP.NET Core, Vue.js, Flask, Django
- [Loved] Svelte, ASP.NET Core, FastAPI, React.js, Vue.js, Express, Ruby on Rails
- [Top Paying] Ruby on Rails, Svelte, ASP.NET, Gatsby, React.js, Flask
Other Frameworks -
- [Professional] .NET Framework, .NET Core, Numpy, Pandas, Flutter, PyTorch
- [Loved] - .NET Core, Flutter, PyTorch, Pandas, Numpy
- [Top Paying] - Apache Spark, .NET Core, .NET Framework, Numpy, Pandas, PyTorch
Other Tools -
- [Professional] Git, Docker, Yarn
- [Loved] Git, Docker, Kubernetes, Terraform, Yarn
- [Top Paying] Pulumi, Terraform, Chef, Puppet, Kubernetes, Docker, Yarn, Git
Collaboration Tools -
- [Professional] VS Code, VS, IntelliJ, Notepad++, Vim, PyCharm
- [Loved] Neovim, VS Code, Rider, Vim, Emacs, IntelliJ, Jupyter, WebStorm, PyCharm
- [Top Paying] TextMate, Emacs, RubyMine, Rider, Vim, Neovim, IntelliJ
Asynchronous Tools -
- Jira, Confluence, Trello, Notion
Synchronous Tools -
- Slack, Microsoft Teams, Zoom, Google Chat