What is Coldsweat?

Coldsweat is a self-hosted RSS feed aggregator and reader written in Python 3 using the Flask framework. It implements the Fever API, allowing synchronization with popular RSS clients such as Reeder for iOS/macOS and ReadKit. The application provides a web interface for reading and adding feeds, supports multiple users, and offers basic grouping of similar items. Feeds can be imported via OPML and fetched on a schedule using cron. Coldsweat supports SQLite (default), PostgreSQL, and MySQL as database backends. Configuration is done via a TOML file or environment variables prefixed with FLASK_. The project is distributed as a Python wheel on PyPI and installed via pip. It includes a built-in fetcher with HTTP conditional GET support, automatic feed location change detection, and automatic disabling of repeatedly failing feeds.

Should you self-host Coldsweat?

Coldsweat scores 39/100 on selfhost.directory (how scoring works) and ranks #69 of 85 in Feed Reader. It has 146 GitHub stars.

There was no stable release in the past 12 months, so check the repository's recent activity before you rely on it.

Setup is moderate: expect some configuration beyond a single command. It is MIT-licensed and written mostly in SCSS.

Its closest alternative on selfhost.directory is RSSHub (85/100, 46 704 stars). It scores higher overall, so compare the two before you pick. See Coldsweat vs RSSHub side by side.