Kill the Newsletter! - Convert newsletters into RSS feeds
Free Twitter RSS Feed Generator - Convert Twitter lists, hashtags & searches into RSS feeds
Mailtrain - Self-hosted open-source Mailchimp clone
RSS API - Convert & subscribe to RSS, ATOM and JSON-Feeds via API ⚡️ Get webhooks whenever there is a new entry in a Feed.
hem by Fab - High-End Design Furniture Made Easy
RSS3 - RSS with human curation