mtl vs cr

Our great sponsors

InfluxDB - Power Real-Time Data Analytics at Scale

WorkOS - The modern identity platform for B2B SaaS

SaaSHub - Software Alternatives and Reviews

Our great sponsors

mtl		cr
	Project
10	Mentions	-
356	Stars	3
0.8%	Growth	-
0.0	Activity	0.0
7 days ago	Latest Commit	-
Haskell	Language	Haskell
GNU General Public License v3.0 or later	License	GNU General Public License v3.0 only

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.

mtl

Posts with mentions or reviews of mtl. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-10-31.

Deprecating Safe Haskell, or heavily investing in it?
1 project | /r/haskell | 28 Dec 2022

The most recent real case I remember is https://github.com/haskell/mtl/issues/110, which could ended badly.
Type class subsets
1 project | /r/haskell | 16 Dec 2022

Splitting mtl classes into algebraic and non-algebraic components (url) Factor MonadReader into Ask (algebraic) and Local (non-algebraic) classes Factor MonadWriter into Tell (algebraic) and Listen/Pass (non-algebraic)
[ANN] mtl-2.3.1
2 projects | /r/haskell | 31 Oct 2022
[ANN] mtl-2.3.1-rc1
2 projects | /r/haskell | 29 Aug 2022

It was the example from the ticket which works fine because there is no restriction that the argument to ContT r is a Monad
Confusion about StateT
1 project | /r/haskell | 8 Aug 2022
Draft mtl-2.3 migration guide
3 projects | /r/haskell | 5 Jul 2022

I don't think so, but here is a list of upcoming changes in mtl-3.0.

cr

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

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

What are some alternatives?

When comparing mtl and cr you can also consider the following projects:

parallel - a library for parallel programming

freer-simple - A friendly effect system for Haskell

motor - Type-safe effectful state machines in Haskell

fused-effects - A fast, flexible, fused effect system for Haskell

capability - Extensional capabilities and deriving combinators

transient - A full stack, reactive architecture for general purpose programming. Algebraic and monadically composable primitives for concurrency, parallelism, event handling, transactions, multithreading, Web, and distributed computing with complete de-inversion of control (No callbacks, no blocking, pure state)

eveff - Efficient Haskell effect handlers based on evidence translation.

machines - Networks of composable stream transducers

mtl-unleashed - MonadReader and MonadState without the functional dependencies

free - free monads

control-monad-free - Free monads and monad transformers

extensible-effects - Extensible Effects: An Alternative to Monad Transformers