Read, write, validate and edit MARC 21 bibliographic data (ISO 2709, MARCXML, MARC-in-JSON, breaker, Aleph; UTF-8 and MARC-8)

WebAssembly (threads) build of the Haybarn extension 'marc21' for duckdb-wasm. Built against haybarn 1.5.5. Pick the variant (mvp/eh/threads) matching your duckdb-wasm bundle.

Haybarn extension 'marc21' for darwin/x64. Built against haybarn 1.5.5. Installed automatically by the @haybarn/ext-marc21-h1-5-5 meta-package; use that, not this leaf, in your dependencies.

Haybarn extension 'marc21' for linux/x64 (glibc). Built against haybarn 1.5.5. Installed automatically by the @haybarn/ext-marc21-h1-5-5 meta-package; use that, not this leaf, in your dependencies.