OPML Minifier

Reduce the size of your OPML script and increase page load time

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Online OPML minifier

By minifying OPML files you will shave some precious time off the page load speed of your website. Now we're not talking about cutting your page load speed by half or something, but every little bit helps when it comes to your website loading.

Not only is it important for first time visitors how good your site loads are, but it is also important to shift the search engine rankings. If you want faster page load times and better rating scores, you want to minify alll other asset files as well.

What is OPML file format?

OPML (Outline Processor Markup Language) is an XML format for outlines that is defined as a tree with a collection of named attributes with string values at each node.
This file type transfers subscription information for RSS Feeds between programs that can manage and display RSS Feeds. This protocol is currently widely used to exchange web feed aggregator lists like RSS aggregators.

What are the primary uses of OPML?

It is primarily used to share lists of RSS feeds, podcast subscriptions, and reading lists between applications. It is also used to create and share outlines and structured lists.

How do I view an OPML file?

OPML files can be viewed with an OPML reader or any text editor because they are XML-based. Web feed readers or aggregators like Feedly can also import OPML files to add a list of feeds.

How can I create an OPML file?

OPML files can be created using an OPML or text editor, provided you follow the OPML syntax. Many feed readers can also export your list of subscriptions as an OPML file.

Is OPML used for podcasting?

Yes, OPML can be used to share lists of podcast subscriptions. Users can export their subscriptions from one podcast player as an OPML file and then import it into another player.

How can I import an OPML file into my feed reader?

The process may vary depending on your feed reader, but generally, there is an Import option in the settings or file menu where you can upload the OPML file.

Can OPML files be converted to other formats?

Yes, OPML files are XML-based, so that they can be converted into other XML-based formats. There are also online tools that can convert OPML to CSV, JSON, and other formats.

Is OPML compatible with all feed readers and aggregators?

Most feed readers and aggregators support OPML because it is a widely adopted standard for sharing feed lists. However, the level of support may vary, and some features might only be supported in some applications.

What does the structure of an OPML file look like?

An OPML file begins with an XML declaration followed by the <opml> tag. Inside this tag is the <head> tag for metadata and one or more <outline> tags, each representing an item in the list.


<?xml version="1.0" encoding="UTF-8"?>
<opml version="2.0">
  <head>
    <title>My RSS Feeds</title>
    <dateCreated>2023-06-17T10:00:00Z</dateCreated>
  </head>
  <body>
    <outline text="Technology">
      <outline text="TechCrunch" xmlUrl="https://techcrunch.com/rss" />
      <outline text="Mashable" xmlUrl="https://mashable.com/rss" />
    </outline>
    <outline text="Sports">
      <outline text="ESPN" xmlUrl="https://www.espn.com/espn/rss/news" />
      <outline text="BBC Sport" xmlUrl="https://www.bbc.co.uk/sport/rss.xml" />
    </outline>
  </body>
</opml>

Why should I use OPML?

OPML offers a standardized, flexible way to share structured data between different applications and platforms. If you frequently switch between or use multiple applications that support OPML, it can make your life much easier.

If you don’t handle [exceptions], we shut your application down. That dramatically increases the reliability of the system.
Anders Hejlsberg