This n8n node lets you easily and efficiently use JSON files as persistent, hierarchical key-value databases/stores.

Query hierarchical data structures in sql with knex

Hipt is a library to parse plain text with indentation.

Turn an entire directory tree into a js-hierarchy node

Not only caches data in a key-value format but also supports efficient data management with a hierarchical structure.

Simple and flexible hierarchical dependency injection (DI) library for TypeScript and vanilla JS

Sort an array's (or anything else's) items by defining a hierarchical set of criterias, à la FP