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Hoogle Alternatives
Similar projects and alternatives to hoogle
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AppSignal
AppSignal knows why the f*#k it crashed. Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
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SaaSHub
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NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better hoogle alternative or higher similarity.
hoogle discussion
hoogle reviews and mentions
Posts with mentions or reviews of hoogle.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2026-07-11.
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Scarf has moved away from Haskell
* https://hoogle.haskell.org/
From that perspective, Haskell docs tend to be more expert-friendly — perhaps a rationalization, granted — which seems ideally suited for an in-IDE model to help bridge between developer intent and typechecked code. However, this comes at the expense of putting in the reps to rewire the developer’s brain to think in functional terms and the resulting mind opening and horizon expansion to think new thoughts she wasn’t capable of even considering. In these days of LLMs, fretting over that particular opportunity cost may be thinking nostalgically about the loss of craftsmanship in fine, well-balanced buggy whips.
In the limit now, will all programming be strictly literate?
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Parse, Don't Validate (2019)
Void has zero members.
To be fair I'm not sure why Void was raised as an example in the article, and I've never used it. I didn't turn up any useful-looking implementations on hoogle[1] either.
[1] https://hoogle.haskell.org/?hoogle=a+-%3E+Void&scope=set%3As...
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Back to the future: the story of Squeak, a practical Smalltalk written in itself [pdf]
> There was also a feature that allowed method lookup by putting in the inputs and expected outputs (I still haven't seen anything like this).
Do you mean like hoogle [0]? Or does what you're talking about operate on values rather than type signatures?
[0] https://hoogle.haskell.org/?hoogle=a%20-%3E%20a
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Haskelling My Python
Haskell has it's issues, but this really ain't it. $ is idiomatic all over the place and is greatly more readable then stacking up brackets. The discovery is also very great because you can literally just input it into hoogle: https://hoogle.haskell.org/?hoogle=%24 and the first hit is, of course the definition of it. Which includes a full explanation what it does.
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Why do we need modules at all?
I think Hoogle[1] is proof this concept could work. Haskell has modules, of course, but even if it didn't, Hoogle would keep it still pretty usuable.
The import piece here which is mentioned but not very emphasized in TFA is that Hoogle lets you search by meta data instead of just by name. If a function takes the type I have, and transforms it to the type I want, and the docs say it does what I want, I don't really care what module or package it's from. In fact, that's often how I use Hoogle, finding the function I need across all Stack packages.
That said, while I think it could work, I'm not convinced it'd have any benefit over the statys quo in practice.
[1]: https://hoogle.haskell.org/
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Rustdoc search; searching functions by type signature
This can be a very useful tool. In the Haskell community there's https://hoogle.haskell.org/ which serves a similar purpose. For me this search engine is indispensable anytime I try to do anything in Haskell.
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8 months of OCaml after 8 years of Haskell in production
https://hoogle.haskell.org/ can help you find the function that you're looking for.
As for "words"... yes, possibly not the best name. But also so common that everyone that has ever written any Haskell code knows it. Such as Java's System.out.println
- Ask HN: What resources do you recommend for learning Haskell?
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- Hoogle: Search Haskell's Docs Based on Type Annotations
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A note from our sponsor - AppSignal
www.appsignal.com | 16 Sep 2026
Stats
Basic hoogle repo stats
71
803
7.0
2 months ago
ndmitchell/hoogle is an open source project licensed under BSD 3-clause "New" or "Revised" License which is an OSI approved license.
The primary programming language of hoogle is Haskell.
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