What is MIME type "text/x-properties"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

The MIME type text/x-properties labels plain text files that store key-value pairs. This format lets software and systems read configuration settings easily. It is built for simple text storage and modifications.
Files using this type hold various settings or data entries for applications. They use a line-based structure where each key is paired with a value.

The type is used in many file formats. Examples include VCF for vCard contacts, ICS and ICAL for calendar events, and several configuration files like INI, CFG, PROPERTIES, URL, REG, MC, PRO, CNF, PREFS, DOF, GITCONFIG, EDITORCONFIG, and LEKTORPROJECT.

• It holds structured configuration data via simple text.
• It is used in many applications for settings and verification.
• Its simplicity makes it easy to modify and update manually.

For more context about MIME types, see the IANA Media Types registry.

Associated file extensions

.vcf, .ics, .ini, .cfg, .sfv, .properties, .url, .reg, .mc, .pro, .cnf, .prefs, .dof, .ical, .gitconfig, .editorconfig, .lektorproject

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:

    Content-Type: text/x-properties
  

HTML

In HTML, you can specify the MIME type in various elements:

    <a href="file.dat" type="text/x-properties">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', 'text/x-properties');
      res.end('Content here');
    }).listen(3000);
  

Associated file extensions

.vcf, .ics, .ini, .cfg, .sfv, .properties, .url, .reg, .mc, .pro, .cnf, .prefs, .dof, .ical, .gitconfig, .editorconfig, .lektorproject