Files with opml extension are written in the Outline Processor Markup Language. Used for numerous purposes, most notably in RSS environment.

Detailed description

Software that open opml file

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OPML file extension - OPML Outline Processor Markup Language file format

What is opml file? How to open opml files?

File type specification:

Internet related file type icon Internet related file type

Text file type icon Text file type

opml file icon: opml filetype icon

File extension opml is associated with OPML (Outline Processor Markup Language). OPML an XML-based format that allows exchange of outline-structured information between applications running on different operating systems and environments.

It is used to exchange subscription lists between programs that read RSS files, such as feed readers and aggregators.

A typical .opml file contains data formatted in the outline processor markup language.

MIME types used for opml files:

Updated: July 2, 2024

The default software associated to open opml file:

FeedDemon icon

NewsGator Technologies, Inc. logoFeedDemon  Microsoft Windows software

Company or developer:
NewsGator Technologies, Inc.

FeedDemon is easy-to-use RSS reader for Microsoft Windows. Users can completely customize and organize RSS feeds.

FeedDemon was discontinued in June 2013. You can still download it for free, but it won't be updated and support for it is no longer available.

RSSOwl icon

RSSOwl  Microsoft Windows software

Company or developer:
Benjamin Pasero

RSSOwl is a free and powerful news feed reader. RSSOwl lets you gather, organize and search news in a convenient, easy to use interface with endless flexibility.

Help how to open:

As far as we know, the code from .opml files can be viewed and edited in any text editor. However, to process these files you will need as special tool.

How to convert:

Used as exchange format between all kinds of different software, from mindmaps to RSS.

Find conversions from opml file:

opml to mm

Find converter to opml file type:

itmz to opml

mm to opml

mmap to opml

List of software applications associated to the .opml file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open opml file, edit opml file, convert opml file, view opml file, play opml file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting opml files.

Software that open opml file - OPML Outline Processor Markup Language file format

Programs supporting the exension opml on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open opml file action.

Apple macOS / Mac OS X:


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