elixir-lsp

elixir-ls

Elixir2020–2024

elixir-lsp / elixir-ls

elixir-ls

A frontend-independent IDE "smartness" server for Elixir. Implements the "Language Server Protocol" standard and provides debugger support via the "Debug Adapter Protocol"

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6Distinct people

7Mentions

0Explicit recommenders

1.8KGitHub stars

REPOSITORY AT A GLANCE

What to know before exploring

What it is

A frontend-independent IDE "smartness" server for Elixir. Implements the "Language Server Protocol" standard and provides debugger support via the "Debug Adapter Protocol"

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

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Also in these discussions

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This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 12:54:37 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 year7 dated mentions

Observed mentions: 2020-07-21 04:43:10 UTC to 2024-10-10 07:11:59 UTC.

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

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Period	Start (UTC)	End (exclusive, UTC)	Mentions	Submissions	Comments
2020	2020-01-01 00:00:00 UTC	2021-01-01 00:00:00 UTC	2	0	2
2021	2021-01-01 00:00:00 UTC	2022-01-01 00:00:00 UTC	1	0	1
2022	2022-01-01 00:00:00 UTC	2023-01-01 00:00:00 UTC	1	0	1
2023	2023-01-01 00:00:00 UTC	2024-01-01 00:00:00 UTC	1	0	1
2024	2024-01-01 00:00:00 UTC	2025-01-01 00:00:00 UTC	2	1	1

What Hacker News says

7 sources

h0l0cube·Oct 10, 2024

> I still believe Phoenix LiveView is a really, really good tech and currently wish that Svelte could implement something like that. Not what you meant, but there's this: https://github.com/woutdp/live_svelte > I did fail to understand how to use the VS Code debugger to step through functions. Did you have any luck with the ElixirLS extension? https://github.com/elixir-lsp/elixir-ls

In Ask HN: Why Isn't Elixir More Popular?

behnamoh·May 27, 2024Submission

Ask HN: Elixir LSP doesn't work on VSCode and Neovim. Any solutions?

I have tried installing Elixir+Erlang through Homebrew (as instructed by the official Elixir website): https://elixir-lang.org/install.html#macos I also tried uninstalling them and installing through ASDF and I made sure that they both had the same version (27) as mentioned in this article: https://elixir-ko.github.io/install.html This Issue mentions that Elixir may be incompatible with the most recent OpenSSL versions, but I don't want to downgrade OpenSSL: https://github.com/erlang/otp/issues/4577#issuecomment-925962048. Also: https://elixirforum.com/t/elixirls-cannot-connect-to-server-in-vscode/55345/8 I also did every tip mentioned on the Github page of the Elixir LSP: https://github.com/elixir-lsp/elixir-ls?tab=readme-ov-file#troubleshooting Several hours later, I still can't use the Elixir LSP in VSCode. This is the error I keep get

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ting: ``` Client ElixirLS - elx: connection to server is erroring. Header must provide a Content-Length property. {"{\"jsonrpc\"":"\"2.0\",\"method\":\"window/logMessage\",\"params\":{\"message\":\"Running in /Users/<me>/Downloads/LLM/elx\",\"type\":3}}Content-Length: 130"} Shutting down server. ``` And ``` Client ElixirLS - elx: connection to server is erroring. Header must provide a Content-Length property. {"{\"jsonrpc\"":"\"2.0\",\"method\":\"window/logMessage\",\"params\":{\"message\":\"Started ElixirLS v0.21.3\",\"type\":3}}Content-Length: 121"} Shutting down server. ``` And ``` Client ElixirLS - elx: connection to server is erroring. Header must provide a Content-Length property. {"\u001b[6 qcontent-length":"103"} Shutting down server. ``` This isn't supposed to be like this, and a search on Google shows many people have this problem. I like Elixir and BEAM, but the tooling is not comparable to Rust, Haskell, Go, etc. Even with Python (which has one of the worst toolings), all I need to do before using the language is: 1. Install Python through Homebrew or a binary. 2. Install the plugin on VSCode. 3. Profit.

1 points · Open discussion

paradox460·Oct 22, 2023

No. Not even close. But it's getting better. There are currently two worth mentioning: ElixirLSP: https://github.com/elixir-lsp/elixir-ls Elixir tools: https://www.elixir-tools.dev/ ElixirLSP is the older project, and has been around for a while. It does a lot, but has had sporadic issues over the years. Things like the debugger are a dog to get working, and the server itself will occasionally run into issues where it just doesn't want to work. It's always sort of focused on a subset of language server features, so don't expect much in the way of inline corrections. But it's got the essentials, formatting, basic linting, type hinting, on demand documentation, and primitive reference navigation Elixir tools is a new up and comer, written by Mitchell Hanberg. It's aiming to be a more complete lsp, and has plugins in its "ecosystem" for most

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editors. Features have been arriving rapidly, starting with things like inline corrections and far more reliable linting, and recently growing autocomplete. One of the main selling points is the elixir-tools backend is a self contained binary, so it can mostly work independent of system Elixir/Erlang version, which was a frequent tripping point for ElixirLSP Personally I use both at the same time, but plan to move to tools only when it's got all the features I need

In Vue 3.3.6 Faster Thanks to WeakMaps

h0l0cube·Dec 31, 2022

Elixir-ls provides Language Server Protocol support as well as VS Code Debug Protocol support which gives extra powers to VS Code, NeoVim, Emacs, and the like. https://github.com/elixir-lsp/elixir-ls I do agree that automated refactoring would be an amazing productivity improvement.

In Phoenix 1.7 is View-less

lukaszsamson·May 22, 2021

Macro expansion has recently been added to elixir-ls[1] and is supported via custom command in vscode extension. [1] https://github.com/elixir-lsp/elixir-ls

In Metaprogramming in Elixir

pselbert·Oct 6, 2020

The IDE type tooling is getting better all the time thanks to Elixir-LS. There was a 0.6 release a couple of days ago with a ton of improvements [0]. Better auto-completion triggers and Ecto completion come to mind as huge quality of life improvements. 0: https://github.com/elixir-lsp/elixir-ls/blob/master/CHANGELO...

In Elixir 1.11

user34234·Jul 21, 2020

Yes, in fact we have ourselves published a few open source packages out of the need we had to build them. The latest incarnation of this problem, was when we had to validate RUT codes (a tax code with a checksum we use here in Chile). Options for Python [1], options for Node [2], options for elixir [3] (don't mind to click, it's a list with nothing to do with RUTs or modulo11 validations). So we had to implement it ourselves. Looking for information we found example implementations [4], where as you can see you have example implementations even for Asterisk Dialplans (!!) but no mention of Elixir. [1] https://pypi.org/search/?q=rut [2] https://www.npmjs.com/search?q=rut [3] https://hex.pm/packages?search=rut&sort=recent_downloads [4] https://es.wikipedia.org/wiki/Anexo:Implementaciones_para_al... There are many more examples. Of course yo

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u get libraries for the "standard" stuff, it is when you get into the detailes, and that happens when you are already too deep into your project, that you realise all the missing pieces. Also, what code editor do you use? we've tried everything, and seems the best option is you grow a beard and go emacs/vim. The VSCode plugins hog your laptop and are really inconsistent, incomplete and sluggish [1] [2]. [1] https://github.com/JakeBecker/elixir-ls/issues/54 [2] https://github.com/elixir-lsp/elixir-ls/issues/96 Of course there is no IDE similar to intellij, rubymine or pycharm.

In How Ruby on Rails Could Be Much Better (2008)