OGraf

OGraf is an Open specification for HTML based Graphics, used in live television and post production workflows.

• Link to Project Web Page
• Link to Project Github repository

Project status

Version 1 includes the The OGraf Graphics specification (published 2025-09-17) as well as the The OGraf Server API specification (published 2026-08-13). The OGraf versions are considered stable and production ready. Future changes and additions to the specification will be backwards-compatible and/or optional.

EBU members as well as the general industry is invited to join the HTML Graphics Working Group to participate in discussions and continued development of the OGraf specification.

Feedback can also be submitted using GitHub Issues.

Graphics and Render system developers are encouraged to follow changes in the Changelog.

Version History

• 2025-09-17: Version 1 of Graphics definition published
• 2026-08-13: Version 1 of Server API published.

A detailed changelog can be found here: CHANGELOG.md

Introduction

The OGraf specification defines a way to create HTML based graphics as well as an Server API for controlling OGraf-compatible renderers. It allows for vendor interoperability between Graphics, Rendering systems and Control systems.

Getting Started

Useful resources:

• Examples of OGraf Graphics.
• OGraf Specification.

Tools

• The OGraf Devtool is a tool for developing OGraf graphics.
• The OGraf Simple Rendering System can be used to play OGraf Graphics in a browser (for use in any existing system capable of rendering HTML graphics).