markershelp

Markershelp is an open-source project that provides a suite of tools for creating, validating, and managing markers used in mapping, labeling, and augmented reality workflows. Markers are compact data entities that link visual markers to identifiable data and metadata, enabling precise recognition, localization, and interpretation across software systems.

The project includes a marker definition schema, validation utilities, a graphics generator, and client libraries with a REST API. The schema supports fields such as id, type, coordinates, orientation, size, and metadata, with support for localization and version history. Validation ensures marker integrity before export or deployment.

Users can create marker sets in a web interface, import and export in formats such as JSON, SVG, and PNG, and integrate with external mapping or AR platforms. The API enables programmatic access for batch creation, search, and export, while SDKs exist for common programming languages.

Development and governance: Markershelp is maintained by an international community of contributors. Documentation, example datasets, and tutorials are provided to assist new users. The project commonly emphasizes interoperability with established marker systems and open standards.

See also: ArUco, AprilTag, OpenCV, GIS tagging.