Favorite

List of famous websites, popular opensource projects and useful online tools for software development.

Online Tools
1.1 Text Compare
1.2 draw.io
1.3 Markdown Editor
1.4 HTML5 Editor
1.5 XML Formatter
1.6 HTML Formatter
1.7 SQL Formatter
1.8 HTML Escape/Unescape
1.9 JSON Formatter
1.10 CSS Formatter
1.11 Icon Converter
1.12 Online Image Editor
1.13 Colors From Image
1.14 Image/PDF TO Text
1.15 Online Drawing
1.16 Convert WebP to PNG / APNG
1.17 Plunker
1.18 Online Hashing
1.19 Mermaid Live Editor
1.20 gitignore.io
1.21 GeoGebra Math
Quick Reference
2.1 Rico's cheatsheets
2.2 Explain Shell
2.3 Font Awesome
2.4 Pexels - Free photos
2.5 Free Logo Maker
2.6 HTTP Status Codes
2.7 Google Cloud Cheat Sheet
2.8 Google Cloud Cheat Sheet(Image)
Online Learning
3.1 Stack Overflow
3.2 GeeksforGeeks
3.3 W3Schools
3.4 TutorialsPoint
3.5 HowToDoInJava
3.6 Java & Distributed Systems
3.7 The Modern JavaScript Tutorial
3.8 Mastertheboss
Basic Concepts in Computer Science
4.1 Data Structure
4.2 Algorithm
4.3 Design Pattern
4.4 Microservices
4.5 RDBMS
4.6 NoSQL
4.7 Cache
4.8 Load Balancing
4.9 Debugging
4.10 Markdown
4.11 JSP
4.12 ORM
4.13 HTTP
4.14 TCP
4.15 UDP
4.16 WebSocket
4.17 CORS
4.18 CDN
4.19 Lambda Architecture
4.20 Serverless Architecture
4.21 LAMP Stack
4.22 MEAN Stack
4.23 ELK Stack
4.24 TICK Stack
Programming Languages
5.1 C
5.2 C++
5.3 C#
5.4 Java
5.5 JavaScript
5.6 Python
5.7 Go
5.8 Rust
5.9 Erlang
5.10 Kotlin
5.11 Scala
5.12 Groovy
5.13 Objective-C
5.14 Swift
5.15 TypeScript
Cloud Service Provider
6.1 Amazon AWS
6.2 Google Cloud Platform
6.3 Microsoft Azure
6.4 Heroku
OS, Virtualization, Containerization
7.1 macOS
7.2 Windows
7.3 Linux
7.4 Ubuntu
7.5 RedHat
7.6 Vmware
7.7 VirtualBox
7.8 Docker
7.9 Docker Hub
7.10 Kitematic
7.11 Kubernetes(K8s)
7.12 Vagrant
Database
8.1 Oracle
8.2 SQL Server
8.3 MySQL
8.4 PostgreSQL
8.5 SQLite
8.6 MongoDB
8.7 Apache HBase
8.8 Apache CouchDB
8.9 Apache Cassandra
8.10 Amazon DynamoDB
8.11 InfluxDB
Distributed System
9.1 Paxos
9.2 Raft
9.3 Elasticsearch
9.4 Tomcat
9.5 Nginx
9.6 Varnish Cache
9.7 Apache Kafka
9.8 Redis
9.9 Memcached
9.10 Apache ZooKeeper
9.11 Netty
9.12 Apache Dubbo
Big Data, Machine Learning, AI
10.1 Apache Hadoop
10.2 HDFS
10.3 MapReduce
10.4 Apache Hive
10.5 Apache Pig
10.6 Apache Spark
10.7 Apache Storm
10.8 IBM Watson
Open Source/Popular Projects
11.1 Jersey
11.2 JPA
11.3 EclipseLink
11.4 Hibernate
11.5 Maven
11.6 Nexus
11.7 Gradle
11.8 SDKMAN
11.9 Mono
11.10 Rhino
11.11 Writage
11.12 MathJax
11.13 Mermaid
Source Control, Version Control
12.1 Git
12.2 GitHub
12.3 SourceTree
Integrated Development Environment(IDE)
13.1 IntelliJ IDEA
13.2 Visual Studio Code
13.3 Xcode
13.4 Android Studio
13.5 Eclipse
13.6 Netbeans
Text Editor
14.1 Sublime Text
14.2 Atom
14.3 Notepad++
Mobile Development
15.1 iOS
15.2 Android
15.3 Genymotion
15.4 Xamarin
15.5 Cordova
Web Development
16.1 Node.js
16.2 NPM
16.3 React
16.4 Angular
16.5 Vue
16.6 Bootstrap
16.7 Jquery
16.8 Less
16.9 Sass
16.10 JSON
16.11 JSON Server
16.12 Socket.IO
16.13 SignalR
16.14 Electron
16.15 Postman
16.16 Fiddler
16.17 Monaco Editor
16.18 Editor.md Markdown Editor
16.19 WebP
DevOps, Deployment, Continuous integration (CI)
17.1 Jenkins
17.2 Bamboo
17.3 Travis CI
17.4 Putty
17.5 Cyberduck
17.6 FileZilla
17.7 Grafana
Logging, Monitoring, Quality Assurance
18.1 Log4j
18.2 Splunk
18.3 Dynatrace
18.4 Selenium
18.5 Katalon
Personal Website
19.1 Liquid
19.2 Jekyll
19.3 Hugo
19.4 Google Analytics
19.5 Disqus
19.6 ShareThis
19.7 Github Pages
19.8 Github Pages Dependency
19.9 Netlify
19.10 GoDaddy
19.11 Cloudflare
19.12 Jekyll cheatsheet
19.13 GitHub Markdown Cheatsheet
19.14 kramdown Quick Reference
19.15 Icons8
19.16 Bootsnipp
19.17 Generate Bootstrap Navbar
19.18 Upgrade to Bootstrap 4
19.19 Bootstrap Panels
19.20 highlight.js
Search Engine Optimization (SEO)
20.1 Varvy SEO tool
20.2 GTmetrix
20.3 Web Page Performance Test
20.4 Google PageSpeed Insights
20.5 Mobile Friendly Test
20.6 Security Headers
20.7 SSL Labs
20.8 TinyPNG
Cyber Security
21.1 DDos
21.2 XSS
21.3 CSRF
21.4 OWASP Cheat Sheet
21.5 Hashkiller(Hash Cracker)
21.6 Have i been pwned
Online Judge for Practising Algorithm
22.1 Leetcode
22.2 Lintcode
22.3 JiuZhang(Chinese)

Combination of postings and projects with the bookmark list.

Online Tools
1.1 Text Compare
1.2 draw.io
1.3 Markdown Editor
1.4 HTML5 Editor
1.5 XML Formatter
1.6 HTML Formatter
1.7 SQL Formatter
1.8 HTML Escape/Unescape
1.9 JSON Formatter
1.10 CSS Formatter
1.11 Icon Converter
1.12 Online Image Editor
1.13 Colors From Image
1.14 Image/PDF TO Text
1.15 Online Drawing
1.16 Convert WebP to PNG / APNG
1.17 Plunker
1.18 Online Hashing
1.19 Mermaid Live Editor
1.20 gitignore.io
1.21 GeoGebra Math
Quick Reference
2.1 Rico's cheatsheets
2.2 Explain Shell
2.3 Font Awesome
2.4 Pexels - Free photos
2.5 Free Logo Maker
2.6 HTTP Status Codes
2.7 Google Cloud Cheat Sheet
2.8 Google Cloud Cheat Sheet(Image)
Online Learning
3.1 Stack Overflow
3.2 GeeksforGeeks
3.3 W3Schools
3.4 TutorialsPoint
3.5 HowToDoInJava
3.6 Java & Distributed Systems
3.7 The Modern JavaScript Tutorial
3.8 Mastertheboss
Basic Concepts in Computer Science
4.1 Data Structure 1
4.2 Algorithm 4
4.3 Design Pattern 1
4.4 Microservices
4.5 RDBMS 1
4.6 NoSQL 1
4.7 Cache 3
4.8 Load Balancing 2
4.9 Debugging 4
4.10 Markdown 2
4.11 JSP 5
4.12 ORM 2
4.13 HTTP 4
4.14 TCP 2
4.15 UDP 1
4.16 WebSocket 3
4.17 CORS 1
4.18 CDN 2
4.19 Lambda Architecture
4.20 Serverless Architecture
4.21 LAMP Stack
4.22 MEAN Stack
4.23 ELK Stack
4.24 TICK Stack
Programming Languages
5.1 C
5.2 C++
5.3 C# 5
5.4 Java 7
5.5 JavaScript 5
5.6 Python
5.7 Go
5.8 Rust
5.9 Erlang
5.10 Kotlin
5.11 Scala 1
5.12 Groovy
5.13 Objective-C
5.14 Swift 2
5.15 TypeScript 2
Cloud Service Provider
6.1 Amazon AWS
6.2 Google Cloud Platform
6.3 Microsoft Azure 1
6.4 Heroku 15
OS, Virtualization, Containerization
7.1 macOS 5
7.2 Windows
7.3 Linux 1
7.4 Ubuntu 4
7.5 RedHat 1
7.6 Vmware
7.7 VirtualBox 3
7.8 Docker 22
7.9 Docker Hub 1
7.10 Kitematic 1
7.11 Kubernetes(K8s)
7.12 Vagrant 4
Database
8.1 Oracle
8.2 SQL Server 1
8.3 MySQL 8
8.4 PostgreSQL
8.5 SQLite 3
8.6 MongoDB 10
8.7 Apache HBase
8.8 Apache CouchDB
8.9 Apache Cassandra
8.10 Amazon DynamoDB
8.11 InfluxDB 4
Distributed System
9.1 Paxos 2
9.2 Raft 2
9.3 Elasticsearch 6
9.4 Tomcat 5
9.5 Nginx 8
9.6 Varnish Cache
9.7 Apache Kafka
9.8 Redis 7
9.9 Memcached 3
9.10 Apache ZooKeeper
9.11 Netty 1
9.12 Apache Dubbo
Big Data, Machine Learning, AI
10.1 Apache Hadoop
10.2 HDFS
10.3 MapReduce 1
10.4 Apache Hive
10.5 Apache Pig
10.6 Apache Spark 1
10.7 Apache Storm
10.8 IBM Watson
Open Source/Popular Projects
11.1 Jersey 1
11.2 JPA 1
11.3 EclipseLink 1
11.4 Hibernate 1
11.5 Maven 9
11.6 Nexus 1
11.7 Gradle
11.8 SDKMAN
11.9 Mono 1
11.10 Rhino 4
11.11 Writage 1
11.12 MathJax 2
11.13 Mermaid 4
Source Control, Version Control
12.1 Git 2
12.2 GitHub 4
12.3 SourceTree 1
Integrated Development Environment(IDE)
13.1 IntelliJ IDEA
13.2 Visual Studio Code 2
13.3 Xcode 4
13.4 Android Studio 3
13.5 Eclipse 7
13.6 Netbeans
Text Editor
14.1 Sublime Text
14.2 Atom 1
14.3 Notepad++
Mobile Development
15.1 iOS 4
15.2 Android 5
15.3 Genymotion 2
15.4 Xamarin 7
15.5 Cordova 3
Web Development
16.1 Node.js 19
16.2 NPM 2
16.3 React 12
16.4 Angular 21
16.5 Vue
16.6 Bootstrap 4
16.7 Jquery 4
16.8 Less
16.9 Sass
16.10 JSON 1
16.11 JSON Server 2
16.12 Socket.IO 5
16.13 SignalR 4
16.14 Electron 3
16.15 Postman 1
16.16 Fiddler
16.17 Monaco Editor 3
16.18 Editor.md Markdown Editor
16.19 WebP
DevOps, Deployment, Continuous integration (CI)
17.1 Jenkins 5
17.2 Bamboo
17.3 Travis CI 10
17.4 Putty 1
17.5 Cyberduck
17.6 FileZilla 1
17.7 Grafana 1
Logging, Monitoring, Quality Assurance
18.1 Log4j
18.2 Splunk 5
18.3 Dynatrace
18.4 Selenium
18.5 Katalon
Personal Website
19.1 Liquid 1
19.2 Jekyll 7
19.3 Hugo
19.4 Google Analytics 1
19.5 Disqus 1
19.6 ShareThis 1
19.7 Github Pages 3
19.8 Github Pages Dependency
19.9 Netlify 7
19.10 GoDaddy
19.11 Cloudflare
19.12 Jekyll cheatsheet
19.13 GitHub Markdown Cheatsheet
19.14 kramdown Quick Reference
19.15 Icons8
19.16 Bootsnipp
19.17 Generate Bootstrap Navbar
19.18 Upgrade to Bootstrap 4
19.19 Bootstrap Panels
19.20 highlight.js 1
Search Engine Optimization (SEO)
20.1 Varvy SEO tool
20.2 GTmetrix
20.3 Web Page Performance Test
20.4 Google PageSpeed Insights
20.5 Mobile Friendly Test
20.6 Security Headers
20.7 SSL Labs
20.8 TinyPNG
Cyber Security
21.1 DDos 1
21.2 XSS 1
21.3 CSRF 1
21.4 OWASP Cheat Sheet
21.5 Hashkiller(Hash Cracker)
21.6 Have i been pwned
Online Judge for Practising Algorithm
22.1 Leetcode 1
22.2 Lintcode
22.3 JiuZhang(Chinese)