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An advanced purely-functional programming language
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What is Haskell?

Haskell is a tool in the Languages category of a tech stack.

Who uses Haskell?

99 companies reportedly use Haskell in their tech stacks, including thoughtbot, Wagon, and CentralApp.

439 developers on StackShare have stated that they use Haskell.

Haskell Integrations

Rollbar, Buddy, Google Code Prettify, Swagger Codegen, and Yesod are some of the popular tools that integrate with Haskell. Here's a list of all 14 tools that integrate with Haskell.

Why developers like Haskell?

Here’s a list of reasons why companies and developers use Haskell
Haskell Reviews

Here are some stack decisions, common use cases and reviews by companies and developers who chose Haskell in their tech stack.

Vadim Bakaev
Vadim Bakaev

Why I am using Haskell in my free time?

I have 3 reasons for it. I am looking for:


Improve functional programming skill.

Improve problem-solving skill.

Laziness and mathematical abstractions behind Haskell makes it a wonderful language.

It is Pure functional, it helps me to write better Scala code.

Highly expressive language gives elegant ways to solve coding puzzle.

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StackShare Editors
StackShare Editors
| 4 upvotes · 14.6K views
atUber TechnologiesUber Technologies

In early 2015, Uber Engineering migrated its business entities from integer identifiers to UUID identifiers as part of an initiative focused on using multiple active data centers. To do that, Uber engineers had to identify foreign key relationships between every table in the data warehouse—a nontrivial task by any accounting.

Uber’s solution was to observe and analyze incoming SQL queries to extract foreign key relationships, for which it built tool called Queryparser, which it open sourced.)

Queryparser is written in Haskell, a tool that the team wasn’t previously familiar with but has strong support for language parsing. To help each other get up to speed, engineers started a weekly reading group to discuss Haskell books and documentation.

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Dieter Vekeman
Dieter Vekeman
Developer at Tinkhaven · | 1 upvotes · 5.2K views

Backend logic (REST, Auth0, Redis, Postgres, functional graph library (fgl), ...) Haskell

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Haskell Alternatives & Comparisons

What are some alternatives to Haskell?
Scala is an acronym for “Scalable Language”. This means that Scala grows with you. You can play with it by typing one-line expressions and observing the results. But you can also rely on it for large mission critical systems, as many companies, including Twitter, LinkedIn, or Intel do. To some, Scala feels like a scripting language. Its syntax is concise and low ceremony; its types get out of the way because the compiler can infer them.
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.
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.
Rust is a systems programming language that combines strong compile-time correctness guarantees with fast performance. It improves upon the ideas of other systems languages like C++ by providing guaranteed memory safety (no crashes, no data races) and complete control over the lifecycle of memory.
Python is a general purpose programming language created by Guido Van Rossum. Python is most praised for its elegant syntax and readable code, if you are just beginning your programming career python suits you best.
See all alternatives

Haskell's Followers
529 developers follow Haskell to keep up with related blogs and decisions.
Darius Liddell
Owen Shepherd
Carl Baird
Jomo Moir
Conrad Taylor
vx apollo
Hans Hoeglund