A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.
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Copy/paste detector for source code. 220+ languages, Rust engine, SARIF/HTML/badge reporters, GitHub Action, MCP server for AI agents.
- copy-paste
- duplicates
- cpd
- code-quality
Codebase intelligence for TypeScript and JavaScript. Health, complexity hotspots, duplication, architecture boundaries, circular dependencies, design-system drift, and unused code, from one graph. CLI, GitHub Action, LSP, MCP, and VS Code. Rust, MIT licensed.
- cli
- code-quality
- dead-code
- developer-tools
A language server for Zig supporting developers with features like autocomplete and goto definition
- zig
- zls
- language-server
- lsp
Visualize Ownership and Lifetimes in Rust
- lifetime
- ownership
- rust
- visualization
A language server that offers Lua language support - programmed in Lua
- lua
- language-server
- lpeg
- lpeglabel
Rust port of the TypeScript 7 type checker
LSP-AI is an open-source language server that serves as a backend for AI-powered functionality, designed to assist and empower software engineers, not replace them.
- ai
- auto-completion
- developer-tools
- ide
A TOML toolkit written in Rust
- toml
- toml-parser
- rust
- analyzer
Verible is a suite of SystemVerilog developer tools, including a parser, style-linter, formatter and language server
- systemverilog
- lexer
- yacc
- syntax-tree
A meta-language for Go that adds Result types, error propagation (?), and pattern matching while maintaining 100% Go ecosystem compatibility
Markdown knowledge graph — LSP for your editor, CLI + MCP memory for your AI agents
Universal toolkits for linting, viewing and managing i18n for any frameworks.
The missing linter and lsp for AI coding assistants. Validate CLAUDE.md, AGENTS.md, SKILL.md, hooks, MCP. Plugin for all major IDEs included, with autofixes.
JQuick Java: a lightweight Java-like scripting language for rule engines. Declare, parse and execute business rules at runtime via XML or inline scripts—no restart needed. Java 8+, embeddable, with LSP and IDEA plugin support.
Language server, formatter, and linter for Quarto and other Markdown flavors
- formatter
- pandoc
- quarto
- language-server
Visual Studio Code Extension and Language Server Protocol for Rocq / Coq [maintainers=@gbdrt,@SkySkimmer,@tabareau]
- coq
- ide
- user-interface
- vscode-extension
The @vlang language server, for all your editing needs like go-to-definition, code completion, type hints, and more.
- bindings
- language-server
- lsp
- lsp-server
IDE tools for writing pest grammars, using the Language Server Protocol for Visual Studio Code, Vim and other editors
Go language extension that turns HTML templates into typed Go expressions with seamless editor support and an extensible rendering pipeline.
The standards-based Web Components multitool. Generate Custom Elements Manifests, Dev Server, LSP, and MCP for your app or design system
- custom-elements
- custom-elements-manifest
- go
- golang
The Design Tokens Multitool. CLI and go library; LSP and MCP; Generator and converter