Yuichiro Yamashita

A Svelte compiler written in Rust. Passes 100% of the official Svelte 5 compiler test suite and integrates natively with the OXC ecosystem. This site is built with it.

The official ESLint plugin for Svelte. I develop and maintain it as a Svelte core team member.

The official ESLint parser that turns Svelte components into an ESTree-compatible AST.

A Svelte preprocessor that delegates events declared with on:*.

Build-time dead code elimination for Svelte 5, via whole-program partial evaluation.

DevTools for Svelte 5. Runs as a Vite DevTools plugin or on its own.

A playground for svelte-ast-print.

An ESLint plugin for PostgreSQL files that enforces style, performance and security practices in SQL.

A collection of fast oxlint plugins, built together with @ubugeeei.

An ESLint parser that turns PostgreSQL SQL into an ESTree-compatible AST, covering PostgreSQL-specific syntax and extensions.

An ESLint parser for Jsonnet and libsonnet, powered by go-jsonnet on WASM.

A JavaScript library for reading and writing Excel (XLSX), inspired by openpyxl.

A JavaScript library for reading and writing PowerPoint (PPTX).

A JavaScript library for reading and writing Word (DOCX).

Fast Leiden community detection for Node.js, via native igraph and leidenalg bindings.

Finds unused Hono RPC endpoints by analysing types.