What is MIME type "application/vnd.sqlite3"?
A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.
The MIME type application/vnd.sqlite3 identifies files that store data in the SQLite database format.These files hold structured data for local storage and are used by many applications. They ensure data integrity and support transaction logging through additional files like WAL (write‑ahead logging) and SHM (shared memory).
Files using this MIME type can have multiple file extensions such as DB, SQLITE, DB3, DB-WAL, SQLITE3, SQLITE-SHM, DB-SHM, and even extensions used with Fossil like FSL or FOSSIL.
- The main purpose is to store and manage data locally.
- It is used in desktop software, mobile apps, and web browsers.
- Associated logging files (DB-WAL or SQLITE-WAL) help track changes for data integrity.
- SHM files (SQLITE-SHM or DB-SHM) aid in managing shared memory for concurrent access.
Associated file extensions
.db, .sqlite, .db3, .db-wal, .sqlite3, .sqlite-shm, .db-shm, .fsl, .sqlite-wal, .fossil
Usage Examples
HTTP Header
When serving content with this MIME type, set the Content-Type header:
Content-Type: application/vnd.sqlite3
HTML
In HTML, you can specify the MIME type in various elements:
<a href="file.dat" type="application/vnd.sqlite3">Download file</a>
Server-side (Node.js)
Setting the Content-Type header in Node.js:
const http = require('http');
http.createServer((req, res) => {
res.setHeader('Content-Type', 'application/vnd.sqlite3');
res.end('Content here');
}).listen(3000);
Associated file extensions
.db, .sqlite, .db3, .db-wal, .sqlite3, .sqlite-shm, .db-shm, .fsl, .sqlite-wal, .fossil
FAQ
What is a MIME type?
A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.
MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.
MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.
How do I find the MIME type for a file?
You can check the file extension or use a file identification tool such as file --mime-type
on the command line. Many programming languages also provide libraries to detect MIME types.
Why are multiple MIME types listed for one extension?
Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.