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.MAKER·File Extension

MAKER Data & Text — A .maker file is a MAKER Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

Data & Textapplication/vnd.framemaker

Quick facts

Extension.maker

File typeMAKER Data & Text

MIME typeapplication/vnd.framemaker

CategoryData & Text

Charset—

Compressible—

What is .maker

What is a .maker file?

A .maker file is a MAKER Data & Text. It is a text-based data format widely used for configuration files, data interchange and API payloads.

In the mime-db registry it maps to application/vnd.framemaker. When serving .maker over HTTP, set the Content-Type header as shown in Developer info below.

Related entities: it maps to application/vnd.framemaker — and is delivered over HTTP via the Content-Type header.

How to open .maker files

Use VS Code or Notepad++ to open and edit .maker files.
Any text editor (Notepad, VS Code) can inspect the raw content as text.

Developer info

When served over HTTP, responses should set the following header:

Content-Type: application/vnd.framemaker

Common software that reads/writes .maker:

VS CodeNotepad++Sublime Textjq

Relation chain

.makerextension of

format

MAKER Data & Textserved as

mime type

application/vnd.framemakersent via header

http header

Related extensions

Related MIME types

application/vnd.framemaker

.fm .frame .maker

Common uses

Configuration files
Data interchange between systems
API request and response payloads
Logs and data exports

How to edit .maker files

Open the file with VS Code, make your changes and save.
Most editors preserve the original formatting and encoding — avoid changing the charset.

How to create .maker files

Create a new file and save it with the .maker extension, or export this format from VS Code.

Frequently asked questions

What programs can open .maker files?

Common options include VS Code, Notepad++, Sublime Text. You can also open many of these files with built-in viewers or a browser.

How do I create a .maker file?

Create a new file in any text editor or the app that owns the format and save it with the .maker extension.

What is the relationship between .maker and the application/vnd.framemaker MIME type?

application/vnd.framemaker is the media type identifier used for .maker files during network transfer (for example in the HTTP Content-Type header).

Sources & standards

Updated 2026-09-13

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