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Top 23 Haskell GHC Projects
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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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> I’m not as certain. The fact that we’ve gone from ASN.1 to COBRA/SOAP to protobuf to Cap’n’web and all the million other items I didn’t list says something.
> It absolutely is a decades old set of problems that have never been solved to the satisfaction of most users.
ASN.1 wasn't in the same problem space with CORBA/DCOM, both CORBA and DCOM/OLE were heavily invested in a general-purpose non-domain-specific object model representation that would suppot arbitrary embeddings within an open-ended range of software. I suspect this is the unsolvable problem indeed, but I also believe that's not what you meant with your comment either, since all the known large-scale BEAM deployments (the comment I originally replied to implied BEAM deployments) operate within bounded domain spaces such as telecom and messaging, where distributed properties of the systems are known upfront: there are existing formats, protocols of exchange, and the finite number of valid interactions between entities/actors of the network, the embeddings are either non-existent or limited to a finite set of media such as static images, videos, maps, contacts etc. All of these can be encoded by a compile-time specification that gets published for all parties upfront.
> basic questions like “should optionality/absence be encoded differently than unset default values?”
However you like, any monoid would work here. I would argue that [a] and [] always win over (Option a) and especially over (Option [a]).
> and “how should we encode forward compatibility?”
If you'd like to learn if there's a spec-driven typed way of achieving that, you can start your research from this sample implementation atop json: https://github.com/typeable/schematic?tab=readme-ov-file#mig...
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ghc-make
An alternative to ghc --make which supports parallel compilation of modules and runs faster when nothing needs compiling.
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SaaSHub
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Haskell GHC discussion
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ghcup: command not found
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Buch Empfehlungen fĂĽr Programmierung (nicht sprachspezifisch - nur konzeptionell)
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A note from our sponsor - SaaSHub
www.saashub.com | 8 Oct 2026
Index
What are some of the best open-source GHC projects in Haskell? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | haskell-language-server | 2,959 |
| 2 | miso | 2,441 |
| 3 | haskell-exercises | 665 |
| 4 | stan | 597 |
| 5 | haskell-code-explorer | 517 |
| 6 | gi-atk | 328 |
| 7 | haskell-tools-ast | 251 |
| 8 | higgledy | 171 |
| 9 | ghc-lib | 160 |
| 10 | ghc-vis | 143 |
| 11 | ghc-justdoit | 125 |
| 12 | ghc-whole-program-compiler-project | 122 |
| 13 | ghc-source-gen | 101 |
| 14 | schematic | 86 |
| 15 | ghc-exactprint | 73 |
| 16 | ghc-events-analyze | 67 |
| 17 | ghc-syntax-highlighter | 59 |
| 18 | ghc-dump | 55 |
| 19 | extensions | 48 |
| 20 | ghc-typelits-natnormalise | 45 |
| 21 | vabal | 43 |
| 22 | ghc-dump-tree | 41 |
| 23 | ghc-make | 41 |
Sponsored
AppSignal knows why the f*#k it crashed.
Stop vibe-debugging. Every exception, every backtrace, grouped so you see patterns, not noise.
www.appsignal.com