Ruby — Ruby is best known for their framework, Ruby on Rails. Ruby is similar to Python, and is a good choice for creating Domain Specific Languages. Javascript — Javascript is often confused with Java because of the similar name, even though Java is compiled and Javascript is interpreted.Oct 4, 2013

HTML
CSS
Bootstrap
Php
Javascript
JQuery
SQL
Angular2
Angularjs
React
LESS
SAAS

PhP
java script
vb script
cobol
are flexible programming languages for web applications.

Programming languages are all good. Depending on the preference of your business requirements, you need to choose the best one. Different programming language include-
1. PHP
2. Java
3. Python
4. Ruby on Rails
5. HTML and CSS

Language Share Trend

Java 22.70% -0.80%
Python 21.69% 5.40%
JS 8.53% 0.30%
PHP 8.33% -1.70%
C# 7.99% -0.70%
C 6.42% -1.30%
R 4.23% 0.40%
Objective-C 3.81% -1.10%
Swift 3.00% -0.60%
Matlab 2.39% -0.40%
Ruby 1.72% -0.40%
TypeScript 1.52% 0.40%
VBA 1.42% 0.00%
Visual Basic 1.26% -0.30%
Scala 1.21% 0.00%
Kotlin 0.90% 0.80%
Go 0.78% 0.30%
Perl 0.78% -0.10%
lua 0.36% -0.10%
Rust 0.36% 0.10%
Delphi 0.31% -0.10%
Haskell 0.30% 0.00%

Python, Java script, PHP, HTML and CSS are best programming language for web application

It only depends on the requirement of the project, For starter you can go ahead with HTML & php to make some web apps for you.