Kotlin/JS vs SourceMeld
Kotlin/JS
kotlinlang.orgSourceMeld
sourcemeld.comSide by side
| Figure | Kotlin/JS | SourceMeld |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 1 | 2 |
| Spec score · Code Transpilers | 7.8 (#15) | 8.1 (#7) |
| Purpose | Kotlin/JS transpiles Kotlin code, the Kotlin standard library, and compatible dependencies to JavaScript. | SourceMeld integrates, migrates, and searches code across multiple programming languages. |
| Support | The Kotlin documentation directs users to the #javascript channel in Kotlin Slack to discuss Kotlin/JS with the community and team. | Community Edition includes community support, while Enterprise Edition includes dedicated support. |
Plans
In their own words
Kotlin/JS
Kotlin/JS is a Kotlin compiler target that converts Kotlin code, the Kotlin standard library, and compatible dependencies into JavaScript. Projects can target browsers or Node.js, including server-side and serverless applications. It supports ES5, ES2015, and ES2020 output, as well as ESM, CommonJS, UMD, and AMD modules. Projects use the Kotlin Multiplatform Gradle plugin for configuration, bundling, and JavaScript dependencies from npm. Kotlin/JS can share logic between web frontends and JVM backends, or across Android, iOS, and web clients. Kotlin wrappers are available for React and other JavaScript frameworks, including React Redux, React Router, and styled-components. Browser tests can use Karma or an experimental browser testing DSL; Node.js projects use Mocha. The documentation notes that Karma is deprecated and is not expected to receive new features or bug fixes. The Gradle plugin generates JavaScript source maps for builds. Kotlin/JS is open source and free at free, and is listed for Linux, macOS, web, and Windows.
SourceMeld
SourceMeld has no write-up on Specifiction yet; its figures are above.