varying VS free

Compare varying vs free and see what are their differences.


Continuously varying values, made easy :) (by schell)
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varying free
0 3
36 142
- -
0.0 5.0
almost 3 years ago 19 days ago
Haskell Haskell
MIT License BSD 3-clause "New" or "Revised" License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.


Posts with mentions or reviews of varying. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning varying yet.
Tracking mentions began in Dec 2020.


Posts with mentions or reviews of free. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-18.
  • Is this meta-authentication system possible in Haskell
    1 project | | 10 Apr 2022
    If you want me to go into more detail after you've given it a go, let me know. There are a few free monad libraries out there. I think the best place to start is, because it is the least cushy library, and so you can learn how they work internally etc. Later you might try algebraic effects as a backup.
  • Stack-safety for free?
    3 projects | | 18 Nov 2021
    That's an awesome tagline! I have a Haskell background and was alluding to "Monads for free" from the free package when picking the title "Stack-safety for free?" Alluding to Rust's "fearless concurrency" seems so much more appropriate though.
  • [ANN] merge, cropty, and trust-chain
    2 projects | | 18 Sep 2021 is a little more out there, but the most interesting to me personally. There are two ways to think about it, each useful to different audiences. On one hand, it can be seen as a tree where the node structure and leaf type are type level parameters, and every internal node is signed by the private key corresponding to the public key at that node. In Haskell, it can be seen as a free monad where every layer is signed in that same way.

What are some alternatives?

When comparing varying and free you can also consider the following projects:

Free Category - Free categories, free arrows and free categories with monadic actions

cond - Basic conditional operators with monadic variants.

eveff - Efficient Haskell effect handlers based on evidence translation.

effect-monad - Provides 'graded monads' and 'parameterised monads' to Haskell, enabling fine-grained reasoning about effects.

Free Algebras - Free Algebras in Haskell


hdph - Haskell distributed parallel Haskell

ImperativeHaskell - Proof that Haskell can look and act like an imperative language.

control-monad-failure - A class of monads which can fail with an error

control-monad-exception - Explicitly Typed exceptions as a library

control-monad-free - Free monads and monad transformers

ChannelT - Generalized stream processors