#Compatibility

Estimated reading time: 2 minutes

#Runtimes

Kita Html works on Node.js 20.13 and later. Bun is fully supported and uses its native Bun.escapeHTML for faster escaping. Deno is untested but expected to work since the library has no native dependencies.

#TypeScript

TypeScript 6.0 or later is required for full compatibility with the latest type definitions.

The native TypeScript compiler tsgo works for building projects that use Kita Html. The language service plugin (@kitajs/ts-html-plugin) requires the standard TypeScript language server and will not work with tsgo while tsgo doesn't publish its own support for plugins.

#Module system

The packages emit CommonJS. ESM consumers can import them with esModuleInterop enabled in tsconfig.json.

#Frameworks

Official framework integrations exist for Fastify (4.x and 5.x), Express (4.x and 5.x), and Elysia. Kita Html also works with any framework that accepts strings: Hono, Bun's built-in server, AdonisJS, and others. Send the string or stream directly in the response body.

#Browsers

The core HTML string output works anywhere the browser can render HTML. Suspense streaming has a stricter client requirement because the injected replacement script depends on HTMLTemplateElement.content and Element.remove().

In practice, Suspense streaming supports modern evergreen browsers released since late 2015. IE11 is not supported.

#Editors

The XSS detection plugin works in any editor that supports TypeScript language service plugins. VS Code requires the workspace TypeScript to be selected instead of the built-in version.