开源大世界

CommaFeed - Google Reader inspired self-hosted RSS reader. (源码) Apache-2.0，Java
Feedbin - Simple, fast and nice looking RSS reader. (源码) MIT，Ruby
FeedHQ - FeedHQ is a web-based feed reader. (源码) BSD-3-Clause，Python
FreshRSS - Self-hostable RSS feed aggregator. (演示, 源码, Clients) AGPL-3.0，PHP
JARR - JARR (Just Another RSS Reader) is a web-based news aggregator and reader (fork of Newspipe). (演示, 源码) AGPL-3.0，Python
Kriss Feed - Simple and smart (or stupid) feed reader. (演示, 源码) CC0-1.0，PHP
Leed - Leed (for Light Feed) is a Free and minimalist RSS aggregator. (源码) AGPL-3.0，PHP
Leselys - Your very elegant RSS reader. AGPL-3.0，Python
Lite-Reader - Read your feeds on your own machine with a simple and lite application. (演示) BSD-3-Clause，PHP
Moonmoon - simple feed aggregator (planet like): it only aggregates feeds and spits them out in one single page. (源码) BSD-3-Clause，PHP
Miniflux - Miniflux 2 is a minimalist and open source news reader, written in Go and PostgreSQL. (源码) Apache-2.0，Go
NewsBlur - NewsBlur is a personal news reader that brings people together to talk about the world. A new sound of an old instrument. (源码) MIT，Python
newsdash - A news dashboard inspired by iGoogle and Netvibes. AGPL-3.0，NodeJS
Newspipe - Newspipe is a web news reader. (演示) AGPL-3.0，Python
reader - A Python feed reader web app and library (so you can use it to build your own), with only standard library and pure-Python dependencies. BSD-3-Clause，Python
Reader-Self - Self-hosted rss reader (php / mysql or sqlite) - Google Reader alternative. (源码) GPL-3.0，PHP
RSS Monster - RSS Monster is an easy to use web-based RSS aggregator and reader compatible with the Fever API, created as an alternative for Google Reader. MIT，PHP
Selfoss - New multipurpose rss reader, live stream, mashup, aggregation web application. (源码) AGPL-3.0，PHP
Sismics Reader - Free and open source feeds reader, including all major Google Reader features. (演示, 源码) GPL-2.0，Java
Stringer - Work-in-progress self-hosted, anti-social RSS reader. MIT，Ruby
Temboz - Two-column feed reader emphasizing filtering capabilities to manage information overload. MIT，Python
Tiny Tiny RSS - Open source web-based news feed (RSS/Atom) reader and aggregator. (演示, 源码) GPL-3.0，PHP
gritttt-rss - More features for Tiny Tiny RSS. (源码) BSD-2-Clause，Python
ttrss-mobile - Mobile webapp for Tiny Tiny RSS. AGPL-3.0，Javascript
ttrss-reader - Light and responsive client for TTRSS. GPL-2.0，Javascript
Winds⚠ - Open source and beautiful RSS reader built using React/Redux/Sails/Node and Stream. It showcases personalized feeds powered by the Stream API. (演示, 源码) BSD-3-Clause，Nodejs

RSS/Atom自动化

Feedpushr - Powerful RSS aggregator, able to transform and send articles to many outputs. Single binary, extensible with plugins. GPL-3.0，Go
Full-Text RSS - Extract article content from news sites and blogs and convert RSS feeds that contain only extracts of stories to full-text feeds. Developed by FiveFilters.org. (源码) GPL-3.0，PHP
PolitePol - Online tool for creation of RSS feeds for any web page. (演示) MIT，Python
RSS Fulltext Proxy - Mirrors RSS feeds to return the full content of the items, extracted from the website. MIT，NodeJS
RSS Merger - PHP script which will take multiple RSS / Atom feeds as input and merge them into a single RSS feed. GPL-2.0，PHP
RSS-Bridge - rss-bridge is a PHP project capable of generating ATOM feeds for websites which don't have one. Unlicense，PHP
RSS2EMail - Fetches RSS/Atom-feeds and pushes new Content to any email-receiver, supports OPML. GPL-2.0，Python
Screaming Liquid Tiger - Simple script to automatically generate valid RSS and Atom feeds from a list of media files in the same folder. MIT，PHP