Apps with 'Export to OPML' feature

Thunderbird is a free, open source, cross-platform e-mail, news and instant messaging client. The project strategy is modeled after Mozilla Firefox.

Feedly is a better way to organize, read and share the content of your favorite sites.

List-making software with infinite levels of indentation, giving you the flexibility of infinite layers of organization.

Discover the world's most powerful podcast player. Pocket Casts has all the podcasts you know & love; over 300k. Find Trending, Most Popular podcasts & more.

With Podcast Addict, manage all your audio & video Podcasts, Radio on Demand as well as your YouTube channels and RSS News feeds from your Android device.

Advanced Feed Reader - Read news & blogs or any RSS/Atom/RDF source.Feature highlights:

Flym News Reader is a light, modern, totally free (no ads) and opensource project which keeps you inform by fetching your websites/blogs and displaying them in a mobile-optimized...

Feeder is a fully free/libre feed reader. It supports all common feed formats, including JSONFeed. It doesn't track you. It doesn't require any setup.

BazQux Reader is a very fast RSS feed reader with simple and clean user interface.

RSSOwlnix is a fork of RSSOwl a powerful application to organize, search and read your RSS, RDF & Atom news feeds in a comfortable way.

OmniOutliner is a start-to-finish writing app. Perfect for collecting information, outlining Big Ideas, adding structure to any sort of writing, and much more.

spaRSS is a light, modern, totally free (no ads) and open source project which keeps you inform by fetching your websites/blogs and displaying them in a mobile optimized way. It is based on the "Flym" RSS reader.

Visual Outliner is an outliner software for Windows, and it uses OPML as native file format.
It's not just another tasklist application, but a real outliner editor that can be used to write, view, modify, and maintain hierarchically arranged text.

Amazon Simple Email Service (Amazon SES) is a cost-effective outbound-only email-sending service built on the reliable and scalable infrastructure that Amazon.com has developed to serve its own customer base.

Interlink is a Mail, RSS, and Newsgroups client based on Mozilla-sourced Community Code and built on the Unified XUL Platform.