ALE

Judgement

What it is

Integration

What it does

A Vim and Neovim plugin that runs linters and fixers asynchronously while you edit and acts as a Language Server Protocol client.

Adopt it when

You use classic Vim and want linting, fixing and LSP features from one plugin with support for many existing tools.

Watch out

Neovim users increasingly rely on the built-in LSP client and nvim-lint instead, so ALE overlaps with what Neovim already ships.

Ready for

Production-ready

Runs as

Library

Built with

Vim Script and Lua

How established

Established: started 10 years ago, latest release v4.0.0.

What the license allows

You can build it into a product you sell, as long as you keep its copyright notice.

Judged on 2026-11-06 from the project's README and GitHub data. The license and age lines are worked out directly.

Built from

Follow it down: ALE → Lua → GCC → LLVM project → runs on a microchip

How compilers were built, back to punched paper tape

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