Skip to content


Switch branches/tags
This branch is 11 commits ahead, 11 commits behind NeuroJSON:master.

Latest commit


Git stats


Failed to load latest commit information.
Latest commit message
Commit time

JData Format Specification Development Guide

We use this repository to gather feedback from the community regarding the "JData Format Specification", or JData format. Such feedback is crucial to finalize this file specification and help improve it in the future once disseminated.

The latest version of the JData specification can be found in the file named The specification is written in the Markdown format for convenient editing and version control.

How to participate

You can use a number of methods to provide your feedback to the working draft of this file specification, including

  • Create an "Issue"
    • This is the most recommended method to provide detailed feedback or discussion. An "Issue" in github is highly versatile. One can ask a question, report a bug, provide a feature request, or simply propose general discussions. Please use URLs or keywords to link your discussion to a specific line/section/topic in the document.
  • Write short comments on Request for Comments (RFC) commits
    • A milestone version of the specification will be associated with an RFC (Request for comments) commit (where the entire file is removed and re-added so that every line appears in such commit). One can write short comments as well as post replies on this RFC page.
    • The latest RFC commit is based on Draft 2 (version v0.8). Please use this link to comment.
    • To add a comment, you need to first register a github account, and then browse the above RFC page. When hovering your cursor over each line, a "plus" icon is displayed, clicking it will allow one to comment on a specific line (or reply to other's comments).
    • The RFC page can get busy if too many comments appear. Please consider using the Issues section if this happens.
    • One can browse the commit history of the specification document. If anyone is interested in commenting on a particular updated, you can also comment on any of the commit page using the same method.
  • Use the JData mailing list
    • You may send your comments to the jdata mailing list (openjdata at Subscribers will discuss by emails, and if a motion is reached, proposals will be resubmitted as an Issue, and changes to the specification will be associated with this issue page.

For anyone who wants to contribute to the writing or revision of this document, please follow the below steps

  • Fork this repository and make updates, then create a pull-request
    • Please first register an account on github, then, browse the JData repository; on the top-right of this page, find and click the "Fork" button.
    • once you fork the JData project to your own repository, you may edit the files in your browser directly, or download to your local folder, and edit the files using a text editor;
    • once your revision is complete, please "commit" and "push" it to your forked git repository. Then you should create a pull-request against the upstream repository (i.e., fangq/jdata). Please select "Compare cross forks" and select "fangq/jdata" as "base fork". Please write a descriptive title for your pull-request. The project maintainer will review your updates and choose to merge to the upstream files or request revision from you.


JData: A general-purpose data storage and interchange format






No releases published


No packages published


  • MATLAB 100.0%