Postgres Language Server is a language server protocol implementation for Postgres that brings IDE-like developer tooling to SQL development.
The tool addresses the lack of reliable, standardized SQL tooling by implementing the Language Server Protocol for Postgres. It uses Postgres' own parser, libpg_query, to guarantee 100% syntax compatibility with actual Postgres behavior. The server-client architecture with transport-agnostic design means developers can access its features through multiple interfaces: the standard LSP for editor integration, a command-line interface, HTTP APIs, and a WebAssembly module. This multi-interface approach makes the tooling accessible across different development workflows and environments.
Developers working with Postgres should consider this tool if they want autocompletion, hover information, syntax diagnostics, type checking through EXPLAIN error insights, SQL formatting, and linting capabilities—including both migration linting and database linting. It also provides PL/pgSQL support. The tool integrates with VSCode, Cursor, Neovim, Zed, and Sublime Text, so adoption depends on your editor of choice. Anyone building Postgres-focused development infrastructure or seeking to standardize SQL tooling across a team will find the multi-interface design particularly valuable, as it avoids lock-in to a single editor or transport mechanism.
Development activity shows consistent engagement with the codebase, with regular updates addressing both features and maintenance. The project maintains active documentation and provides clear installation and getting-started resources. Community contributions are welcomed through the standard GitHub workflow, and the project acknowledges its dependencies on foundational work from related projects in the tooling ecosystem.
