Open Source Mac RSS Software

Vienna is an open source Mac OSX RSS reader with support for RSS/Atom/JSON feeds, article storage and management via a SQLite database, written in Objective-C and Cocoa. Feeds can be accessed directly, or through a syncing service supporting the Open Reader API, like BazQux.com, FreshRss.org, FeedHQ.org, InoReader.com or TheOldReader.com. Development now happens on GitHub: https://github.com/ViennaRSS/vienna-rss

Glean is a self-hosted RSS reader and personal knowledge management platform designed to help information-heavy users efficiently aggregate, browse, and organize content from feeds. It centralizes RSS/Atom subscriptions, offering clean reading views, tagging, and organization features such as folders and bookmarks, while giving users full control over their data by deploying on their own infrastructure. Glean also includes real-time background synchronization, enabling feeds to update at regular intervals without manual refresh, and it supports importing and exporting subscription lists for portability. With a modern responsive UI and optional admin dashboard, Glean balances readability with lightweight performance, making it suited for both individual readers and teams. Its knowledge management capabilities are augmented by features like smart filtering, “read later” queues, and future plans for AI-driven summaries and preference-based recommendations.

iTorrent allows you to download BitTorrent podcasts from iTunes. It transforms BitTorrent podcasts so that you can update them just like any other podcast in iTunes.

NetNewsWire is a free and open source RSS reader for Mac, iPhone, and iPad. NetNewsWire shows you articles from your favorite blogs and news sites and keeps track of what you’ve read. This means you can stop going from page to page in your browser looking for new articles to read. Do it the easy way instead: let NetNewsWire bring you the news. And, if you’ve been getting your news via Facebook and Twitter, with their ads, algorithms, user tracking, outrage, and misinformation, you can switch to NetNewsWire to get news directly and more reliably from the sites you trust.

The RSS feed for websites missing it.

TrendRadar is an AI-powered trend and hotspot tracking system that aggregates information from dozens of news, social, and content platforms to help users cut through information overload and focus on what matters. It automatically crawls and monitors trends across 30+ sources with smart filtering, keyword triggers, sentiment analysis, and natural language summarization to give actionable insights. The tool supports multiple alert modes—such as daily summaries, incremental change monitoring, and current rankings—and can push notifications through messaging platforms like Telegram, Slack, WeChat, DingTalk, and email. Users can deploy it quickly via Python and GitHub Actions, and it also supports RSS feeds and Docker deployment for flexible integration. By combining AI judgment with broad data ingestion, TrendRadar empowers individuals and teams to track public opinion, news cycles, and emerging topics without manual scanning of dozens of websites.

Upvote RSS is a flexible, open-source tool for generating customizable RSS feeds from discussion platforms such as Reddit, Hacker News, Lemmy, Lobste.rs, PieFed instances, and GitHub activity. It works as a web application (often deployed with PHP or via Docker) that lets users build feeds with rich options — including summaries, scores, comments, and filtering — to tailor what content flows into their feed reader. Upvote-RSS gives fine control over how posts are selected and presented, and supports environment configuration for features like caching or integration with external APIs to enrich the output. Users can preview generated feeds before copying the RSS URL for consumption in any RSS reader, and advanced options allow filtering by posts per day, inclusion of full content, summaries, and comment limits.

MagpieRSS is a simple, functional PHP inteface for parsing RSS 1.0 (and earlier versions). Built on PHP's XML (expat) parser, and with an integrated cache for storing the parsed RSS objects, Magpie is designed by simple, and 'PHP-like' to use.

Podcast Generator is an open source Content Management System written in PHP and specifically designed for podcast publishing. It provides the user with the tools to easily manage all of the aspects related to the publication of a podcast, from the upload of episodes to its submission to the iTunes store.

RSS Reader is a mobile J2ME (Java ME) app. that runs on Java enabled phones. User can store multiple RSS/ATOM feeds as bookmarks. Can import from OPLM file or HTML file with links. Can read offline. MIDP 2.0/some MIDP 1.0. Specify which MIDP w/issue

Newsagent is an RSS feed aggregator that offers a combination of flexibility and simplicity. Built on an established plugin architecture (OSGi), Newsagent provides a solid base for building custom RSS-enabled applications.

A full-featured Multi-User ToDo List manager supporting RSS feeds, custom categories, and more.

Simple RSS is an easy to use Java library to read and write RSS feeds. Currently supports RSS 2.0 and iTunes compliant feeds.

XFeed is a CGI/Perl program designed to develop RSS Feeds-supported XML documents. XML-DOM oriented simple suggestion to create your own RSS Feeds.

Search though multiple (configurable) information sources at once: results are presented side-by-side. Intended to support all information sources that implement OpenSearch, and more.

ARADO RSS Feed Reader is a URL Database for Websearch and RSS Feed Reading, which saves your added Bookmarks & RSS-Feeds and syncs newest URLs with your connected devices. Store and Search your all your URLs in ARADO. As framework c++ / Qt is used.

Agrumelaire : An RSS Aggregator with Bayesian Learning System. Produces an RSS feed from a set of existing feeds. Items are categorized according to the reader's interests. Resulting feed is accessible from any standard RSS client application.

GTK# RSS aggregator [newsreader]

RSS Reader base on rich internet applications of flex.

A podcast aggregator written in Python using GTK. Users can subscibe to podcasts and download the latest episodes to their hard drive (iPod support is planned).

Automatically imports content items from various RSS feeds into your WordPress (2.0 or higher) site. Very configurable, easy to install, and fully automated -- it will keep your site updated with fresh content.

Web 2.0 framework developed in PHP5 that allows you to develop interoperable, standards-compliant, scalable web applications without having to worry about the complexities of the underlying architecture for the most common of functionality.

RSS reader that uses a Bayesian filter to sort items

The Blogpolis Software is an easy to use and webbased Blog-Management-System for political Blog-Carnivals. The software is programmed in PHP, uses a MySQL Database and is licensed under the Free Software licence GPL 3.

blogschapines is a blog directory and feed agregator.