Apps with 'Import/Export OPML Feeds' feature

Cross-platform email client providing POP/IMAP support, robust filtering, multiple accounts, and chat. Extendable via add-ons with RSS/Atom, etc.

Local-first, privacy-focused notebook supporting Markdown and Org mode, offline use, encrypted backup, extensible with plugins, and more.

Organize and read content from RSS feeds into a magazine-like experience, simple sharing options, and seamless access across all devices.

Comprehensive writing tool for notes, citations, and drafting with privacy-first features and multi-language support, perfect for diverse writing tasks.

A free and open source podcastmanager for Android, allowing you to subscribe to podcasts (via iTunes database & OPML), automatically download episodes using powerful mechanisms and listen to them the way you like (speed, balance adjustments, etc).

Aggregate RSS, newsletters, and social feeds with advanced filtering, real-time cross-device syncing, customizable reading views, and ad-free experience.

Open-source client enhancing Thunderbird with more features and bug fixes. Offers security patches and multi-row descriptions like Outlook.

FreshRSS is a free, self-hosted RSS aggregator. It is quite lightweight, fast (it can manage +100k articles without complaining) and powerful (e.g. shortcuts, filters, responsive design, multi-views, multi-themes, multi-users, statistics, provides a Google Reader API, etc.)

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. It doesn't even need you to create an account!

Powerful podcast player offering streaming, downloading, episode search, 'Up Next' syncing, and improved discovery with curated recommendations.

Provides infinite text-based nested lists, real-time collaboration, tagging, file uploads, kanban boards, offline access, and seamless sync across devices.

Cross-platform mind mapping and brainstorming app with support for multiple languages, collaboration, diagram templates, cloud sync, and export options.

RSS Guard is simple, light and easy-to-use RSS/ATOM feed aggregator developed using Qt framework which supports online feed synchronization.

It is free for Mac, Windows and Linux if you download it from GitHub, and it's paid ($2) for Android and iOS.

Tixati: Fast, Full Ad-free and ethical, lightweight torrent client with DHT/PEX/Magnet support. No ads, no tracking. Features bandwidth control, RSS, IP filtering & encryption. Both Standalone/Portable (no install). Uses minimal RAM/CPU.

Fast & free RSS feed reader as a browser extension for Chrome, Vivaldi, Edge, Brave and Firefox for reading blogs, news or any RSS, Atom or RDF based feed.

Manages bookmarks and RSS feeds with customizable widgets and themes. Offers browser extensions for cross-device usability and personalized pages.

NewsBlur is a personal news reader that brings people together to talk about the world. It shows you the original site and allows you to read stories directly off the site while keeping track of what you read. It also filters and highlights stories you like and dislike.

Open source web-based reader with AJAX, offering privacy control through self-hosting. Features include aggregation, keyboard shortcuts, and podcast support.

RSS reader shows you articles from your favorite blogs and news sites, and it keeps track of what you’ve read.

QuiteRSS is a open-source cross-platform RSS/Atom news feeds reader written on Qt/C++

Reeder is your all-in-one inbox for reading, watching and listening to content from various sources.

A snappy, customizable video feed. Designed to show you exactly the content you want to see and nothing else.

Just like its namesake, Capy Reader is a small RSS reader focused on approachability and simplicity.

GTK+-based client offering fast performance, news reading, robust stability, extensibility via plugins, advanced filtering, encryption, folder and contact management.