Free, open-source alternatives to Reddit
Link aggregator and discussion forums. 2 apps you can run yourself instead of Reddit, sorted by how well they replace it. Each one is open source, so your data stays with you.
LemmyBest match
Link aggregator for the fediverse (alternative to Reddit).
PieFed
A link aggregator / reddit clone for the fediverse (alternative to Reddit).
Side by side
Why replace Reddit?
Reddit works, but your data lives in someone else's account, the price can change at any time, and features can disappear. An open-source app you run yourself is yours: you choose where it runs, who can see the data, and when to update.
Questions
What is the best free alternative to Reddit?
Lemmy is the closest open-source replacement for Reddit in our list. PieFed are worth a look too, depending on what you need.
Can I self-host an alternative to Reddit?
Yes. All 2 apps on this page are open source and can run on your own server, usually with Docker, or on a managed host that installs them for you.