(registered 2026-04-08, last updated 2026-04-08)

Media type name: application

Media subtype name: vnd.edulith.edux+json

Required parameters: N/A

Optional parameters: N/A

Encoding considerations: binary

Security considerations: This media type does not contain active or executable content. It contains structured JSON data representing educational documents (conversations, flashcards, notes). The data may contain user-generated text content. The format does not provide privacy or integrity services; these should be provided externally via TLS when transmitted over a network. The security considerations of RFC 8259 (JSON) apply.

Interoperability considerations: Files are UTF-8 encoded JSON. Any JSON parser can read the structure. The "edux" top-level object contains version information for forward compatibility.

Published specification: N/A

Applications which use this media: Edulith desktop and web application (https://edulith.com). Used for storing and exchanging educational content including chat conversations, flashcard decks, and solver problems, and more later. Educational platform.

Fragment identifier considerations: N/A

Restrictions on usage: N/A

Provisional registration? (standards tree only): No

Additional information:

1. Deprecated alias names for this type: N/A
2. Magic number(s): N/A
3. File extension(s): .edux
4. Macintosh file type code: N/A
5. Object Identifiers: N/A

General Comments:

Person to contact for further information:

1. Name: Heike Håland Østensen
2. Email: admin&edulith.com

Intended usage: COMMON

Author/Change controller: Edulith (https://edulith.com)