ISO/IEC CD 18181-2

Information technology — JPEG XL image coding system — Part 2: File format

General information

Current stage: 30.60 Close of voting/ comment period Jun 23, 2026

Originator: ISO/IEC

Owner: ISO/IEC JTC 1/SC 29 Coding of audio, picture, multimedia and hypermedia information

Type: International Standard

Scope

This document specifies the transport and container formats for JPEG XL codestreams as specified in ISO/IEC 18181-1. This document specifies how to add metadata and extensions to JPEG XL codestreams. A file as described by this document is called a JPEG XL file.

Life cycle

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PUBLISHED
ISO/IEC 18181-2:2026

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IN_DEVELOPMENT
ISO/IEC CD 18181-2
30.60 Close of voting/ comment period
Jun 23, 2026