Altern is a directory site for discovering AI tools, models, datasets, and AI-related hardware, built around community submissions rather than a single curator's picks. It indexes more than 2,100 entries across categories relevant to developers, marketers, and researchers, with new tools added daily as the AI product landscape keeps expanding.
Beyond the raw listing, Altern runs editorial content through a review section and a weekly newsletter, giving it a layer of curation on top of the open submission model. That combination of open submissions plus some editorial judgment is a common pattern for AI directories trying to stay comprehensive without becoming an unfiltered dumping ground.
It's free to use and competes in a category that includes dozens of similar AI tool directories, most of which differentiate mainly on freshness, categorization quality, and how much editorial trust they've built up over time.