The application/vnd.sqlite3 MIME type
a program-specific or binary data type used by 2 file formats in the database.
application/vnd.sqlite3 is the MIME type (also called a media type) for .db and .sqlite files. A MIME type is the label a server, browser or email client uses to say what kind of data a file is, independently of its name or extension.
File extensions with the application/vnd.sqlite3 type
These formats declare application/vnd.sqlite3 as a MIME type. Open any one for its signature, how to open it and how to convert it.
What is a MIME type?
A MIME type, or media type, is a short label like application/vnd.sqlite3 that names a kind of data. It has two parts separated by a slash: the general category (application) and the specific format (vnd.sqlite3).
The point of a MIME type is that it does not depend on a file's name. A web server sends it in the Content-Type header so your browser knows how to handle a download, email attaches it to each part of a message, and file tools use it to decide what a file really is. That is also how the WhatFileType identifier reports what your file is: by its bytes, not its extension.
Get it as JSON
Every format's MIME types are available from the free WhatFileType API, and the full signature reference lives in the magic-numbers table.