Native extensions for the standalone Dart VM

Note

The extension mechanism that was previously discussed on this page—native extensions—was removed in Dart 2.15.

If you need to call existing code written in C or C++, see the FFI documentation.

A mechanism that's similar to native extensions—the Dart Embedding API—is supported when the Dart VM is embedded as a library into another application. For examples of how to use the Dart Embedding API, see these examples maintained by the community.

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Unless stated otherwise, the documentation on this site reflects Dart 3.10.3. Page last updated on 2025-9-4. View source or report an issue.