Programming languages

PHP

4.2M sitesOpen source

PHP is a general-purpose scripting language used for web development.

Node.js

620K sitesOpen source

Node.js is an open-source, cross-platform, JavaScript runtime environment that executes JavaScript code outside a web browser.

Used byFigma,Ghost,Linear,Notion+4

Java

261.8K sitesOpen source

Java is a class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible.

Used byAirbnb,Conta Azul,Hotmart,iFood+2

TypeScript

192.4K sitesOpen source

TypeScript is an open-source language which builds on JavaScript by adding static type definitions.

Used byAirbnb,Cal.com,Documenso,Dub+11

Python

128K sitesOpen source

Python is an interpreted and general-purpose programming language.

Used byConta Azul,Discord,Duolingo,Olist+2

Ruby

109.9K sitesOpen source

Ruby is an open-source object-oriented programming language.

Used byCreditas,GitLab,RD Station,Shopify

GraphQL

37.3K sitesOpen source

GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data.

Used byAirbnb,GitLab,Linear,Shopify

Perl

7.1K sites

Perl is a family of two high-level, general-purpose, interpreted, dynamic programming languages.

Dart

5.8K sitesOpen source

Dart is an open-source, general-purpose, object-oriented programming language developed by Google.

Adobe Flash

5.2K sites

Adobe Flash is a multimedia software platform used for production of animations, rich web applications and embedded web browser video players.

CFML

3.8K sites

ColdFusion Markup Language (CFML), is a scripting language for web development that runs on the JVM, the .NET framework, and Google App Engine.

C

3.3K sitesOpen source

C is a general-purpose, procedural computer programming language supporting structured programming, lexical variable scope, and recursion, with a static type system.

Scala

2.3K sitesOpen source

Scala is a general-purpose programming language providing support for both object-oriented programming and functional programming.

Used byDuolingo

Erlang

2.1K sites

Erlang is a general-purpose, concurrent, functional programming language, and a garbage-collected runtime system.

Sass

1.3K sitesOpen source

Sass is an extension of CSS that enables you to use things like variables, nested rules, inline imports and more.

Elixir

1.1K sitesOpen source

Elixir is a dynamic, functional language designed for building scalable and maintainable applications.

Used byDiscord,Plausible Analytics

XSLT

1K sites

XSLT is designed for use as part of XSL, which is a stylesheet language for XML.

WebAssembly

570 sitesOpen source

WebAssembly (abbreviated Wasm) is a binary instruction format for a stack-based virtual machine. Wasm is designed as a portable compilation target for programming languages, enabling deployment on the web for client and server applications.

Used byFigma

Go

325 sitesOpen source

Go is an open source high-level programming language.

Used byConta Azul,Figma,GitLab,Notion+6

Lua

202 sites

Lua is a multi-paradigm programming language designed primarily for embedded use in applications.

Elm

70 sitesOpen source

Elm is a statically typed functional programming language created by Evan Czaplicki in 2012 for building web applications.

AsciiDoc

7 sites

AsciiDoc is a text document format for writing documentation, slideshows, web pages, man pages and blogs. AsciiDoc files can be translated to many formats including HTML, PDF, EPUB, man page.

KPHP

7 sitesOpen source

KPHP (kPHP or KittenPHP) is a free PHP-to- C++ source-to-source translator, developed by VKontakte.

Rust

4 sitesOpen source

Rust is a multi-paradigm, general-purpose programming language designed for performance and safety, especially safe concurrency.

Used byDiscord,Figma,Notion,PostHog+2

Kotlin

1 sitesOpen source

Kotlin is a general purpose, free, open-source, statically typed “pragmatic” programming language initially designed for the JVM (Java Virtual Machine) and Android that combines object-oriented and functional programming features.

Used byAirbnb,Creditas,Duolingo,iFood+1

bun

Open source

Bun is a fast JavaScript runtime compatible with Node.js and Deno.

Dragon

Dragon is a general-purpose programming language.

Imba

Open sourceFreemium

Imba is a Web programming language that compiles to performant JavaScript, providing language-level support for defining, extending, subclassing, and instantiating.