stringify-keys

Build an array of key paths from a nested object, with support for custom separators, escaping, and optional inclusion of values. Version 3.0.0 removes redundant parent keys (e.g., 'a' is omitted when 'a.b' exists) and adds array traversal support. Maintenance-mode library with low release cadence (last major update in 2018). Differentiated by lightweight size, simple API, and escape handling for keys containing dots.