vscode-languageserver provides a comprehensive library for implementing Language Server Protocol (LSP) servers in Node.js. It simplifies the creation of language support for IDEs and code editors. Offering features like diagnostics, auto-completion, document formatting, and more, this package abstracts away the complexities of the LSP, enabling developers to focus on defining the language-specific logic. It promotes code reuse across different tools, fostering a rich and consistent development experience.
The vscode-languageserver npm package had frequent releases in its early years (2015-2018), with peaks in late 2015 and mid-2018. Release frequency significantly decreased after 2018, with sporadic releases in 2020, 2022, and 2023 with no releases in recent months. The most recent versions are 9.0.0 and 9.0.1 of September 2023.
The vscode-languageserver npm package experienced consistent download growth from March 2024 to August 2025, peaking at over 13 million downloads. September 2025 shows a significant drop, but this is likely due to incomplete data for the current month.
