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Erlang

A programming language used to build massively scalable soft real-time systems with requirements on high availability
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What is Erlang?

Some of Erlang's uses are in telecoms, banking, e-commerce, computer telephony and instant messaging. Erlang's runtime system has built-in support for concurrency, distribution and fault tolerance. OTP is set of Erlang libraries and design principles providing middle-ware to develop these systems.
Erlang is a tool in the Languages category of a tech stack.
Erlang is an open source tool with 9K GitHub stars and 2.5K GitHub forks. Here’s a link to Erlang's open source repository on GitHub

Who uses Erlang?

Companies
150 companies reportedly use Erlang in their tech stacks, including WhatsApp, Postmates, and Klarna.

Developers
403 developers on StackShare have stated that they use Erlang.

Erlang Integrations

Rollbar, Airbrake, Google Code Prettify, Hex, and Tile38 are some of the popular tools that integrate with Erlang. Here's a list of all 10 tools that integrate with Erlang.
Pros of Erlang
57
Concurrency Support
57
Real time, distributed applications
53
Fault tolerance
32
Soft real-time
28
Open source
19
Functional programming
17
Message passing
12
Immutable data
10
Works as expected
4
Facebook chat uses it at backend
2
Knowledgeable community
2
Practical
1
Bullets included

Erlang Alternatives & Comparisons

What are some alternatives to Erlang?
Elixir
Elixir leverages the Erlang VM, known for running low-latency, distributed and fault-tolerant systems, while also being successfully used in web development and the embedded software domain.
Haskell
It is a general purpose language that can be used in any domain and use case, it is ideally suited for proprietary business logic and data analysis, fast prototyping and enhancing existing software environments with correct code, performance and scalability.
Go
Go is expressive, concise, clean, and efficient. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel type system enables flexible and modular program construction. Go compiles quickly to machine code yet has the convenience of garbage collection and the power of run-time reflection. It's a fast, statically typed, compiled language that feels like a dynamically typed, interpreted language.
Clojure
Clojure is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming. Clojure is a compiled language - it compiles directly to JVM bytecode, yet remains completely dynamic. Clojure is a dialect of Lisp, and shares with Lisp the code-as-data philosophy and a powerful macro system.
Akka
Akka is a toolkit and runtime for building highly concurrent, distributed, and resilient message-driven applications on the JVM.
See all alternatives

Erlang's Followers
579 developers follow Erlang to keep up with related blogs and decisions.