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fwcd
kotlin-language-server
Kotlin2020–2025
fwcd / kotlin-language-server

kotlin-language-server

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

7Distinct people
8Mentions
0Explicit recommenders
2KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

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

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year8 dated mentions

Observed mentions: 2020-09-22 19:58:57 UTC to 2025-05-22 08:21:29 UTC.

012342020-01-01 00:00:00 UTC to 2021-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments20202021-01-01 00:00:00 UTC to 2022-01-01 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2022-01-01 00:00:00 UTC to 2023-01-01 00:00:00 UTC (exclusive): 4 mentions; 0 submissions, 4 comments20222023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments2025

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20202020-01-01 00:00:00 UTC2021-01-01 00:00:00 UTC101
20212021-01-01 00:00:00 UTC2022-01-01 00:00:00 UTC101
20222022-01-01 00:00:00 UTC2023-01-01 00:00:00 UTC404
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC000
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC000
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC202

What Hacker News says

8 sources
I'll bring up the Kotlin LSP[0] every time I see Kotlin on HN because I really hope the LSP takes off (which would make it viable to use Kotlin with a non-IntelliJ editor). Kotlin as a language looks really cool, but I don't want to give up terminal-based, modal editing (which I'd have to in order to use IntelliJ). Along those lines, I once tried diving into using Gradle outside IntelliJ, and I couldn't find any good resources to help with that. If folks have hints/links-to-blog-posts with regards to that as well, that'd be great! [0] https://github.com/fwcd/kotlin-language-server#this-reposito...
In From zero to 10M lines of Kotlin
Tangentially related: If a talented folks out there could please help out with (to the best of my knowledge) the only LSP for Kotlin out there[0], that would be amazing! I'm really attracted to Kotlin as a language[1], but, last I checked, IntelliJ is the only way to get great tooling for Kotlin, which is a show stopper for me since I've invested a lot into my neovim config. [0] https://github.com/fwcd/kotlin-language-server/projects/1 [1] What attracts me to Kotlin is that it is actually statically typed (ruling out Python/JS/TS), with a relatively expressive type system (ruling out Golang), great type inference, not verbose (ruling out Java), not too involved with low level details (ruling out Rust), not too steep of a learning curve (ruling out Rust again), and a great cross-platform community (ruling out Swift).
In Why LSP?
Read the README: https://github.com/fwcd/kotlin-language-server#this-reposito... What you said would make sense, except they do build a plugin for Eclipse. Better options would be any language where the stewards are not trying to extract money from you by forcing your IDE choice. Or where they view fostering community good will as being in their best interest. Ex. MS offers an official LS rather than saying "we don't support other IDEs because Visual Studio licenses." There's lots of choices here for compile to JS languages: https://github.com/jashkenas/coffeescript/wiki/List-of-langu...
In Kotlin for JavaScript
Does the LSP implementation [1] linked by the JetBrains employee in that thread not work? It pushed a new minor version release a little over a week ago. It seems pretty reasonable to me for them to not pay employee salaries to build a plugin for a competing product, especially when they already provide a comprehensive IDE solution available for free (in both senses). What other companies are doing that? I don't mean that as a challenge. I'd love to know what the better options are. [1] -- https://github.com/fwcd/kotlin-language-server
In Kotlin for JavaScript
This is why it's worth contributing to your language's LSP server[0] and why I encourage every Kotlin dev I see to contribute to Kotlin's[1]. I personally find IDEs are way too complex and cluttered for my personal tastes. To boot, a code editor allows for unified workflows across a broad swathe of languages in ways that IDEs simply can't replicate. It's a pity Jetbrains has long held a dismissive attitude[2] toward developers that don't want a full blown IDE, but that's what you get when there are financial incentives attached. [0]: https://microsoft.github.io/language-server-protocol/ [1]: https://github.com/fwcd/kotlin-language-server [2]: https://discuss.kotlinlang.org/t/any-plan-for-supporting-lan...
In A Picture of Java in 2020

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