This repository hosts the work-in-progress technical specification for Package-URL (PURL), which is being developed under Ecma International's Technical Committee 54 (TC54). PURL provides a lightweight, URL-based syntax for identifying software packages across diverse ecosystems, enabling interoperability, traceability, and improved supply chain management.
The repository serves as the collaborative workspace for drafting, reviewing, and refining the PURL specification. Contributions from TC54 and its task groups (e.g., TG2) ensure that the specification aligns with international standardization goals and reflects the needs of global stakeholders.
- To develop the normative specification for the PURL syntax, its required components, and conformance requirements.
- To provide a clear, authoritative reference for implementers, developers, and organisations adopting PURL.
- To maintain transparency and encourage participation from all stakeholders.
Contributions to this specification are managed by TC54. If you are part of the TC54 community or have been invited to collaborate, please follow the contribution guidelines outlined in this repository.
For general inquiries or feedback, you may contact Ecma International or TC54 through the official Ecma channels.
ECMA-427 1st Edition is the current PURL standard - the PDF and online versions of ECMA-427 1st Edition are available from: https://tc54.org/purl/.
TC54/TG2 is in the process of submitting ECMA-427 2nd Edition to Ecma for approval at the December 2026 General Assembly.
This work is licensed under the terms defined by Ecma International, ensuring free access and adoption of the finalised specification.
We thank Ecma International’s TC39 for their development of Ecmarkup, which TC54 has successfully adopted for preparing and maintaining this specification.