Nnumbered

Nnumbered is a cross-platform software framework and labeling system designed to generate, manage, and validate hierarchical numbering for documents, datasets, and digital content. It aims to standardize how sections, items, and references are numbered across disciplines, enabling stable cross-references and consistent formatting.

The project originated in 2015 from a collaboration of developers and researchers seeking to resolve fragmentation in large document and data-labeling workflows. The core library was released under an open-source license, with a subsequent commercial platform offering cloud-based templates, analytics, and enterprise support.

Nnumbered provides a templates-based scheme engine that defines numbering grammars, including decimal, Roman, alphabetic, or custom schemes, with locale-aware formatting. It supports hierarchical counters, ordinal and cardinal forms, and cross-referencing. The system offers APIs, editor plug-ins, and integration with major content management systems. It includes versioning, auditing, and change-tracking for numbered elements, plus localization for dozens of languages.

Applications span academic publishing, legal archives, and data-labeling pipelines where stable identifiers are required. Institutions use Nnumbered to harmonize numbering across multilingual corpora, digitized archives, and collaborative authoring environments.

Nnumbered is maintained with ongoing community contributions and commercial support options, reflecting a cautious but steady adoption in technical and publishing circles.