Oxc vs TypeScript Playground

Oxc is a free collection of JavaScript tools written in Rust, available for Linux, macOS and Windows. Its toolchain includes a linter, formatter, parser, transformer, resolver, minifier and TypeScript runner. Oxlint checks JavaScript and TypeScript, including JSX, TSX and script blocks in Vue, Svelte and Astro files. It includes more than 870 rules across areas such as TypeScript, React, Jest, Vitest, imports, Unicorn and accessibility. Type-aware linting uses tsgo, a native Go port of the TypeScript compiler. Oxfmt follows a Prettier-compatible workflow and can sort imports, Tailwind CSS classes and package.json fields; it formats JavaScript, TypeScript, JSON, YAML, TOML, HTML, Vue, Svelte, CSS, Markdown, GraphQL and other formats. The transformer handles TypeScript and JSX, syntax lowering from ES2026 to ES2015, React Refresh, plugins and isolated declaration output. An experimental runner executes TypeScript and JSX without a separate build step, with ESM, CommonJS, source map and tsconfig.json support. It strips types but does not type-check programs, and its APIs and behavior may change between releases.

TypeScript Playground is a free browser environment for writing, running, sharing, and safely experimenting with TypeScript and JavaScript. It accepts .ts, .tsx, .js, .jsx, and .d.ts files. Run converts code to JavaScript, executes it in the current browser session, and shows console output in Logs; the browser session can also support DOM API experiments. The editor centers on one text document and is described as a teaching tool that needs no setup. Users can select supported TypeScript builds, including beta, nightly, pull request, and older builds. The TS Config panel exposes a focused compiler-option set, while twoslash annotations can configure options beyond it. URLs can preserve code, compiler flags, and settings for sharing. Export can create Markdown, open TypeScript AST Viewer, or export a project to CodeSandbox or StackBlitz. Plugins are supported, including Presentation Mode, Clippy, TSQuery, Collaborate, and Transformer. The mobile layout uses a single pane and does not show transpiled JavaScript beside source.