Language Server Protocol (LSP) specifies a standardized JSON-RPC–based protocol for communication between IDEs/editors and language servers, enabling consistent language features like auto-completion, diagnostics, and refactoring across tools.

Features

  • Defines common message formats for language services such as completion, hover, go-to-definition, diagnostics, workspace symbols, code actions, formatting
  • Supports exchange over stdin/stdout, sockets, named pipes, or IPC
  • Vendor-neutral, open standard originally from Microsoft, and supported by many companies (Red Hat, Codenvy, Sourcegraph)
  • Broad editor and IDE support: VS Code, IntelliJ Ultimate + JetBrains IDEs, Eclipse Che, Atom, Sublime via plugin, GNU Emacs (Eglot, LSP Mode)
  • Allows reuse of language servers across multiple editors, reducing duplication of effort
  • Multiple licensing (CC-BY-4.0 for spec, MIT for code) and community-driven development

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License

Creative Commons Attribution License

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Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

TypeScript

Related Categories

TypeScript Code Editors

Registered

2025-09-05