⚡ Programming Languages in Japan

Programming languages are computer languages composed of instructions, syntax, and rules used by developers to create software such as applications and websites.

Japan is an East Asian country with a population of around 125 million people.

According to our research, programming languages are detected on 84.3% of websites from Japan.

⭐ Most Popular in 2026

The following chart shows the top programming languages on websites in Japan in 2026, based on market share.

The most popular is JavaScript with an impressive share of 94.8%, followed by PHP with 70.4% and Ruby with 1.7%.

JavaScript 94.8%
PHP 70.4%
Ruby 1.7%
Lua 1.6%
C# 1.3%
Java 1%
Scala 0.7%
Perl 0.3%
ASP 0.2%
TypeScript 0.2%
Python 0.2%
Go 0.08%
CFML 0.06%
Erlang 0.02%
CoffeeScript 0.005%

🚀 Highlights

Here is a list of the top languages that are more popular in Japan than worldwide.
Differences between global and country rankings are shown in parentheses.

3. Ruby ^(-2)
7. Scala ^(-2)
8. Perl ^(-5)
15. CoffeeScript ^(-1)
16. Dart ^(-1)
18. Hack ^(-3)

✨ Best Programming Languages

Below is a more detailed list of 19 programming languages used on sites from Japan, ranked by their market share.

Rank	Name	Market share
1	JavaScript Austin, Texas, United States An interpreted programming language and a core technology of the web, alongside HTML and CSS, used to add interactivity and logic to websites and web applications.	94.8%
2	PHP A widely used free server-side scripting language.	70.4%
3	Ruby An interpreted, object-oriented, open-source programming language often used for web development.	1.7%
4	Lua Rio de Janeiro, Brazil A lightweight scripting language designed primarily for embedded use in applications.	1.6%
5	C# Redmond, Washington, United States A high-level, object-oriented programming language used primarily on the .NET platform.	1.3%
6	Java Austin, Texas, United States A multi-platform, object-oriented programming language first released by Sun Microsystems in 1995.	1%
7	Scala Lausanne, Switzerland An object-oriented programming language designed to improve and address the limitations of Java.	0.7%
8	Perl A high-level, scripting, dynamically typed programming language.	0.3%
9	ASP Redmond, Washington, United States A server-side scripting language and dynamic web page engine. FreeLegacy	0.2%
10	TypeScript Redmond, Washington, United States A high-level programming language developed by Microsoft that adds static typing to JavaScript.	0.2%
11	Python Wilmington, Delaware, United States A high-level, scripting, dynamically typed programming language that is particularly popular in data processing and machine learning.	0.2%
12	Go Mountain View, California, United States A high-level, statically typed, compiled programming language developed at Google.	0.08%
13	CFML San Jose, California, United States A scripting language for web development, usually associated with Adobe ColdFusion.	0.06%
14	Erlang Stockholm, Sweden A high-level functional programming language.	0.02%
15	CoffeeScript A Ruby- and Python-inspired programming language that compiles to JavaScript.	0.005%
16	Dart Mountain View, California, United States An object-oriented, class-based, garbage-collected language developed by Google.	0.005%
17	Elixir A dynamic, functional language that compiles to bytecode for the Erlang VM.	0.003%
18	Hack Menlo Park, California, United States A PHP-based programming language for the HHVM virtual machine developed by Meta.	0.002%
19	Haskell New York, United States An advanced, purely functional programming language designed for complex data handling and concurrency.	0.001%

👉 See Also

🌎 Programming Languages in other countries

Data is based on the analysis of 144,429 websites from Japan.
Statistics were last calculated on February 3, 2026.
For details, see our methodology and disclaimer.