~/tools/social-media
Social Media
last updated 2026-09-05 · 5 recommendations + nostr clients · what changed
Mainstream social media (Twitter/X, Instagram, YouTube, TikTok) runs on the
same trade: you get a free feed, the platform gets your attention, and an
algorithm decides what you see in order to maximize it. The alternatives here
are decentralized and non-corporate: you own your account,
nobody is optimizing your feed for engagement, and no single company can sell
access to your attention.
before you pick
Federation means no single company can flip a switch and delete the whole
network, but it also means moderation quality varies by server.
You're not just picking an app. You're picking a community run by whoever
operates that instance. Read their rules before you commit your account to one.
what actually matters
federation / activitypub
No single company owns the network. Servers run by different people and organizations talk to each other over a shared protocol.
no algorithmic engagement feed
You get chronological or user-controlled timelines, not a black-box ranking system tuned to maximize time-on-app.
data portability
Can you take your followers and posts with you if you move servers? Real portability means no instance can hold your social graph hostage.
instance moderation quality
Federation pushes moderation down to individual server admins. A good network of well-run instances beats one big company's policy team, but only if you pick a well-run instance.
recommendations
Mastodon
the default pick
federatedno algorithmic feedopen sourcefree
Mastodon is the closest thing to a Twitter/X replacement that isn't owned by
anyone in particular. It's software anyone can run, and the servers
(instances) that run it talk to each other over ActivityPub,
so following someone on a different server works the same as following
someone on your own. Timelines are chronological, not ranked by an
algorithm, and you can move your account (followers included) to another
instance if yours goes downhill.
Which instance you pick matters more here than on any centralized platform:
it decides your moderation experience, your default visibility, and who
technically has admin access to your account.
good
- Federated: no single company can shut down the whole network
- Founder stepped down as CEO in a planned move to nonprofit governance
- Chronological timeline, no engagement-optimized algorithm
- Account migration tools let you move instances without losing followers
- Open source, large and active developer community
- Mastodon added quote posts in version 4.5 (November 2025), with consent controls that let you decide who can quote your posts
mind the
- Moderation quality and culture vary a lot between instances
- Discovery is weaker than algorithm-driven platforms; growth takes more effort
- Active users have fallen to under 1M
- Picking an instance is an extra decision newcomers don't expect
Lemmy
the reddit-alternative pick
federatedno algorithmic feedopen sourceself-hostablefree
Lemmy plays the role Reddit plays (link aggregation and threaded discussion
organized into communities), but it's federated across independently run
instances instead of owned by one company. Communities ("magazines"-style
subforums) federate across servers, so subscribing to a community on someone
else's instance works the same as a local one. There's no ad-driven feed
ranking; you sort by votes, new, or active, same as the platform it replaces.
good
- Federated communities: no single company controls the forums
- No algorithmic feed; sorting is transparent (hot/new/top)
- Open source and self-hostable
- Lemmy's developers have found and patched several 2026 vulnerabilities, including user-enumeration and metadata-leak bugs, through public GitHub security advisories
mind the
- Much smaller user base than Reddit; fewer communities have critical mass
- Instance moderation and defederation decisions vary widely
- Some niche communities simply don't exist yet
PeerTube
the youtube-alternative pick
federatedno algorithmic feedopen sourceself-hostablefree
PeerTube is federated video hosting: any instance can host and publish
videos, and instances federate, so you can browse and subscribe to channels
across servers from one account. There's no recommendation algorithm chasing
watch time: what you see is what the creators you subscribe to (and your
instance) actually posted. Some instances use peer-assisted (WebTorrent-based)
delivery to spread the bandwidth cost across viewers instead of one company's
CDN bill.
good
- Federated hosting: no single company decides what gets demonetized or removed network-wide
- No engagement-optimized recommendation algorithm
- Open source, self-hostable, peer-assisted streaming reduces single points of cost
- The mobile app supports background playback, casting to Chromecast and AirPlay, and uploading video directly from your phone
mind the
- Catalog and creator base are tiny next to YouTube
- Video quality/availability depends on the hosting instance's resources
- Discovery across instances is clunkier than a unified platform
- Live streaming needs a separate, Android-only companion app; it's not built into the main app
Pixelfed
the instagram-alternative pick
federatedno algorithmic feedopen sourcefree
Pixelfed is photo-first sharing built on the same federated model as
Mastodon: thanks to ActivityPub, you can follow a Pixelfed account from
Mastodon and vice versa for basic interactions. The feed is chronological by
default, not an algorithm deciding which posts you're "likely to engage
with," and there's no ad business model pushing the design toward maximizing
your scroll time.
good
- Federated, interoperates with the wider Fediverse via ActivityPub
- Chronological timeline, no engagement-ranking algorithm
- No ad-driven business model shaping the feed
- Founder Daniel Supernault turned down five VC funding offers in January 2025 to keep Pixelfed independent
mind the
- Daniel Supernault still runs the project largely alone, though a 2025 Kickstarter raised money to build out a team and register a nonprofit
- Smaller network: fewer accounts to follow than Instagram
- Pixelfed's iOS and Android apps only shipped in January 2025, so they're newer than the rest of the platform
- Instance choice affects storage limits and moderation, same as Mastodon
- A 2025 privacy bug let anyone view private accounts across the fediverse, forcing instances like Hachyderm to defederate until they patched it
Nostr
the key-based pick
decentralizedno algorithmic feedopen sourcefree
Nostr is a social protocol where your identity is a cryptographic key you
generate yourself, not an account a server hands you. You publish signed posts to
relays, plain servers that store and forward events without talking to each
other, so there are no instances and nothing to migrate between. That's a
stronger kind of portability than the Fediverse offers, since your identity and
followers live in the key instead of on a server, and it comes with a matching
risk if that key is ever lost or leaked.
good
- Your identity is a keypair you hold, so no server can suspend it or hold it hostage
- Any client works with any relay, and switching either costs you nothing
- No ads and no ranking algorithm at the protocol level
- Relays are cheap and interchangeable, so silencing the network means silencing all of them
- NIP-44, the current encryption standard, was audited by Cure53 in 2023
mind the
- Lose your private key and it's unrecoverable; there's no reset and no rotation standard
- Relays see your IP address unless you're behind Tor or a VPN
- Deleting a post is a request relays may ignore, and copies survive elsewhere
- Anyone can create unlimited identities for free, so spam and impersonation get handled client-side
- Daily active users are in the low tens of thousands, and the culture leans heavily Bitcoin
nostr clients
Primal
the cross-platform client
decentralizedall platformsopen sourcefree tier
Primal is a Nostr client built by Miljan Braticevic's venture-backed company,
which launched it with a $1M seed round in 2023. A built-in Bitcoin Lightning
wallet moved from custodial to non-custodial in March 2026.
good
- The best search and discovery on Nostr, because of its own indexing server
- Web, iOS, and Android from a single account
- The whole stack is open source, caching server included
- Much gentler onboarding than the rest of the ecosystem
mind the
- That indexing server is a soft point of centralization in a decentralized network
- Fewer relay controls than clients built for power users
- The built-in Lightning wallet is hard to ignore even if you never fund it
- Venture-backed, so how it eventually makes money is still an open question
Damus
the relay-transparent client
decentralizedall platformsopen sourcefree tier
Damus is a Nostr client maintained by Will Casarin, who is also one of
Nostr's core protocol developers. OpenSats grants have funded it since 2023.
good
- Maintained by a core protocol developer and funded by grants, not investors
- Runs on iOS, Android, and desktop, so you're not locked into one ecosystem
- Only connects to relays you choose, and shows which ones carried a post
- Web-of-trust filtering makes spam manageable without central moderation
- Apple pulled it from the Chinese App Store in 2023, which tells you what it does
mind the
- The Android and desktop apps are newer than the original iOS app, and less polished by most accounts
- Older versions were among the clients affected by a 2025 academic security review
- Some features sit behind the optional Purple subscription
- Spam filtering depends on your follow graph, so a new account sees more of it
at a glance
"federation" here means independently run servers interoperating over a shared protocol, not one company's infrastructure.
worth knowing
These are all part of the Fediverse. Mastodon, Lemmy,
PeerTube, and Pixelfed all speak ActivityPub to varying degrees, which means
they interoperate: you can often follow a PeerTube channel or a Pixelfed
account from a Mastodon account, for instance. It's a network of networks,
not one app.
Picking an instance matters as much as picking the app.
Read the instance's rules and moderation history before you commit your
account to it. A small, well-moderated instance is usually a better
experience than a huge, under-moderated one.
Account migration tools exist. Mastodon in particular lets
you move your account (including your follower list) to a different
instance if the one you're on changes hands, shuts down, or just isn't a
good fit anymore. That portability is the whole point of federation.