Haskelly installs statistics
By UCL · VS Code Marketplace · Programming Languages
Complete support for casual and expert Haskell development.
Haskelly has 118,850 recorded installs on VS Code Marketplace.
It ranks #2148 of 2,501 tracked VS Code Marketplace listings by installs.
It is rated 3.6 out of 5 from 13 ratings.
PluginStats has 4 daily observations since Oct 16, 2026; the latest is from Oct 19, 2026.
Rating: 3.62 / 5 from 13 ratings
About Haskelly
Haskelly
Release notes | Roadmap | Demo Video
Haskelly is a Visual Studio Code extension that supports Haskell development.
Features
• Code highlight • Haskell (.hs and .lhs) and Cabal via automatic dependency on Haskell Syntax Highlighting. • Code snippets • Structures : data, newtype, etc. • Popular functions : map, fold, etc. • Type hovers •
• Jump to definition • Jump to symbol definitions/declarations • Find references • Find references within a module or depending modules. See limitations on #62 • Code completion : • Local functions and constants • Standard library • Imported modules • Integrated REPL, Build, Test and Run commands • repl with GHCi • build with stack • run with runHaskell • test current file prop_* properties with QuickCheck • run full test suite with Stack test
Installation
• Install the Haskelly VS Code extension. • Install Stack and add it to your PATH. Note that Stack folder naming conventions must be followed for it to work correctly, i.e. capitalizing folder names. • Install Intero (code completion and type information), QuickCheck (test suite) and stack-run:
Configuration
Haskelly is customizable (see Code > Preferences > Workspace Settings).
| Parameter | Description | Default |
| haskelly.codeCompletion | Code completion enabled | true | | haskelly.buttons.ghci | GHCi button shows in the bottom bar | true | | haskelly.buttons.runfile | Run file button shows in the bottom bar | true | | haskelly.buttons.quickcheck | QuickCheck button shows in the bottom bar | true | | haskelly.buttons.stackBuild | Stack build button shows in the bottom bar | true | | haskelly.buttons.stackBuildParams | Parameters passed to stack build command| --fast | | haskelly.buttons.stackRun | Stack run button shows in the bottom bar | true | | haskelly.buttons.stackRunParams | Parameters passed to stack run command | null | | haskelly.buttons.stackTest | Stack test button shows in the bottom bar | true | | haskelly.buttons.stackTestParams | Parameters passed to stack test command | null | | haskelly.snippets.important | Hide code completion for which there's already a snippet | false | | haskelly.snippets.custom | Add your custom snippets following the structure of this file| null | | haskelly.exec.reuseTerminal | Reuse the currently opened terminal to run Stack commands | false |
Contributing
If you'd like to contribute to Haskelly, this is what you can do:
• Bugs: This extension is in alpha, so some bugs might be present. We would really appreciate if you could post any issue on the Github repository issues section or contact us at: zcabmse@ucl.ac.uk. • Ideas and feature requests: We want to get everyone's opinion on what we're building so feel free to use the two mentioned channels for any comment or suggestion. • Documentation: Found a typo or strangely worded sentences? Submit a PR! • Code: Contribute bug fixes, features or design changes.
License: GNU 3
Description from the VS Code Marketplace listing.
- cabal
- haskell
- highlight
- intero
- snippet
- snippets
- stack
Where Haskelly sits in the listing
Each band is one page of 20. Installs on a log scale. Placement is projected from installs, so it can differ from the marketplace's own sort order. Hover a dot to see the listing.
Charts
Images: 30d · 1y · all time · 1600×900 dark
Adoption over time
7/30/90-day growth
Filled points are observed values; hollow points come from Internet Archive snapshots of the listing page. Dashed segments span periods with no observations — values between points are not interpolated.
Recent observations
Full history (4)Similar VS Code Marketplace Programming Languages plugins
Data source
Install counts, average rating, and rating counts come from the public Visual Studio Marketplace gallery API. Installs are cumulative and exclude updates.
Listing: https://marketplace.visualstudio.com/items?itemName=UCL.haskelly. First seen Oct 16, 2026; last successful collection Oct 19, 2026. See the methodology.