# fwcd/kotlin-language-server

Kotlin code completion, diagnostics and more for any editor/IDE using the Language Server Protocol

Repository: https://github.com/fwcd/kotlin-language-server
Canonical: https://ross.abutalabs.com/products/kotlin-language-server
Language: Kotlin
License: MIT
License Family: permissive
Topics: kotlin, language-server, atom, autocomplete, lsp, vscode, language-server-protocol, ide, code-completion
Last push: 2025-06-02T12:44:02+00:00

## Health v2 (maintenance only)
Score: 34/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 24, release rhythm 8, longevity 100
- inputs: {"age_days": 3019, "days_push": 457, "days_rel": 592, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2040, forks 252 (observed 2026-08-28T04:06:08.489822+00:00)

## What it is
A Language Server Protocol implementation for Kotlin providing code completion, diagnostics, hover info, document symbols, and definition lookup to any LSP-conformant editor. It wraps the Kotlin compiler's internal APIs and resolves dependencies via Maven or Gradle.

## Use cases
- add Kotlin autocomplete to vim or emacs
- get Kotlin diagnostics in any LSP editor
- Kotlin language server for VSCode
- go to definition for Kotlin code outside IntelliJ
- hover and signature help for Kotlin in lightweight editors

## When to choose
- you use an editor without native Kotlin support and want LSP features
- you need a lightweight alternative to IntelliJ for Kotlin editing

## When to avoid
- starting a new setup — the official JetBrains kotlin-lsp now exists and this project is deprecated
- you need actively maintained, bug-free Kotlin tooling

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: editor, developer-tools, parser
- domain: developer-tools, text-editors, programming-languages
- platform: cross-platform, editor-plugin, jvm
- tags: kotlin, language-server-protocol, lsp, code-completion, ide-tooling, deprecated

## Member repositories
- fwcd/kotlin-language-server (main) score 34

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:08.489822+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:58:21.810502+00:00, confidence not recorded.
  - readme: https://github.com/fwcd/kotlin-language-server (fetched 2026-08-28T04:06:08.489822+00:00, sha a886c1a23917)
- Data as of 2026-08-30T08:39:29.467469+00:00.