Signal isn’t federated [1][2][3.1]; it’s decentralized [1][2][3.2]. Though, for all practical purposes, I would generally argue that it’s centralized.
References
- Signal-Server. signalapp. Github. Published: 2025-01-31T15:34:14.000Z. Accessed: 2025-02-01T09:24Z. https://github.com/signalapp/Signal-Server.
- This is the source code for the server that Signal uses.
- “Signal (software)”. Wikipedia. Published: 2025-01-06T09:34Z. Accessed: 2025-02-1T09:30Z. https://en.wikipedia.org/wiki/Signal_(software).
- ¶“Architecture”. ¶“Servers”.
Signal relies on centralized servers that are maintained by Signal Messenger. In addition to routing Signal’s messages, the servers also facilitate the discovery of contacts who are also registered Signal users and the automatic exchange of users’ public keys. […]
- ¶“Architecture”. ¶“Servers”.
- “Reflections: The ecosystem is moving”. moxie0. Signal Blog. Published: 2016-05-10. Accessed: 2025-02-01T09:40Z. https://signal.org/blog/the-ecosystem-is-moving/.
- ¶5. to ¶“Stuck in time”. ¶3-6
One of the controversial things we did with Signal early on was to build it as an unfederated service. Nothing about any of the protocols we’ve developed requires centralization; it’s entirely possible to build a federated Signal Protocol-based messenger, but I no longer believe that it is possible to build a competitive federated messenger at all. […] [interoperable protocols] [have] taken us pretty far, but it’s undeniable that once you federate your protocol, it becomes very difficult to make changes. And right now, at the application level, things that stand still don’t fare very well in a world where the ecosystem is moving. […] Early on, I thought we’d federate Signal once its velocity had subsided. Now I realize that things will probably never slow down, and if anything the velocity of the entire landscape seems to be steadily increasing.
- ¶“Stuck in time”. “Federation and control”. ¶6.
An open source infrastructure for a centralized network now provides almost the same level of control as federated protocols, without giving up the ability to adapt. If a centralized provider with an open source infrastructure ever makes horrible changes, those that disagree have the software they need to run their own alternative instead. It may not be as beautiful as federation, but at this point it seems that it will have to do.
- ¶5. to ¶“Stuck in time”. ¶3-6
Yeah. I love Signal but it doesn’t belong in that list. Dansup (creator of loops and pixelfed) is apparently working on “Sup” that will be a decentralized alternative to whatsapp.
To me this person sounds like they have too many big projects at once. I wish them success tho
Yeah… I’m bit afraid of “kbin Ernest Effect” (not sure what a proper term is) where personal issues pile up and the sole head developer just disappears.
Haven’t followed dansup much but from what I understand he is much more open to pull requests and listening to the community, but time will tell. Right now I appreciate and love his effort, giving, and the impact on fediverse he is brining.
The kickstarter was a good idea.
Given that I’ve waited 3 weeks to join his smaller instance of pixelfed.art, I can tell things are already piling up. I am hoping the kickstarter does help.
Delta.chat already exists
Matrix?
100% agree >.> Like as much as i love (and trust) Signal i would never call it the same as Mastodon or Matrix for Example >.> This was like comparing Appels and Oranges -.-
XMPP is an established federated messaging app with encryption.
There isn’t much information about “Sup”, but if I had to guess it could be that dansup is making sup app with XMPP(rotocol) as the messaging protocol.
Originally it was supposed to be ActivityPub based, but recently they posted something about it being for XMPP, Matrix and IRC as well 🤷♂️ Maybe they decided to fork Pidgin 😂
IMHO Sup. isn’t going to happen. They will have their hands more than full with Pixelfed’s new popularity and maybe Loops.
Oh! didn’t know that, I thought activitypub can’t be used for secure messaging. Lol really hope its XMPP!
Yeah I didn’t take it that seriously when it was announced right now. Just hope pixelfed stays afloat amidst the user flood and hope he can publish loops as open source soon!
Bro put citations in his lemmy comment 💀
I wish more people did that ngl 💀
I wish Boost understood the collapsible spoilers.
On my client, it’s all expanded and I see all the formatting characters. It looks/works great in a browser though.
Don’t let perfect be the enemy of good
My comment wasn’t protesting the use of Signal; it was rather clarifying the misinformation in OP’s post — ie misinformation that Signal is a federated service.
but I no longer believe that it is possible to build a competitive federated messenger at all.
The fact that we have a telephone system that works with separate providers contradicts this sentiment. If I want to pick up the phone and talk to my cousin’s puppy in New Zealand, I can do that without creating an account on his provider’s service.
I don’t understand why we’ve forgotten this as a society. Yes, it was difficult to upgrade the phone systems over the past century, but it’s worth it in my opinion. I really wish we’d start seeing government regulation that says “you should be able to talk to someone on a service without having to create an account on said service.” I thought the DMA would do this, but sadly, Whatsapp still requires an account to talk to people using that service. Very disappointing.
Yeah, Moxie has openly shot down the idea of adding federation to Signal, and I’ve never heard them claim Signal was decentralized.
Matrix is federated, distributed, and decentralized.
XMPP is federated and decentralized.
Matrix is […] distributed […].
It is? How so?
Matrix servers keep a copy of any remote room an account on the server has joined, and it’s possible to recreate a room from the copies held on different servers. There are more details I don’t remember, but at a high level that’s how it’s distributed.
Storing messages of remote rooms in addition to local rooms is why people complain about the storage requirements of Matrix servers. They don’t realize it’s distributed.
Signal is hostile to third party clients like Molly.im as well
That’s not true. Moxie only had a problem with a fork called “LibreSignal” because it was using their name. He didn’t want users to confuse the apps.
it’s decentralized
No it’s not. From literally your own comment:
Signal relies on centralized servers
For a decentralized messenger use https://delta.chat/
it’s decentralized
No it’s not. From literally your own comment:
Signal relies on centralized servers
I was using “decentralized” to mean that there isn’t centralized control over ownership of the service in general — eg anyone can spin up their own server (impractical, imo, pushing it more towards being centralized) and people can use it (making it decentralized, imo (Please correct me if I am wrong, but I do think my usage of the term is appropriate in this way.)), but people who use that server can only communicate with that server (making it not federated). But yes it could still be said to be centralized in that it operates on a client-server model [1].
This is more an argument of definitions, though. I’m not trying to claim anything in bad faith.
References
- Signal-Server. signalapp. Github. Published: 2025-01-31T15:34:14.000Z. Accessed: 2025-02-01T09:24Z. https://github.com/signalapp/Signal-Server.
- This is the source code for the server that Signal uses.
That’s just open source, not decentralized. I can’t find a definition of decentralization that would even make it vague. From Wikipedia:
Decentralization is the process by which the activities of an organization, particularly those related to planning and decision-making, are distributed or delegated away from a central, authoritative location or group and given to smaller factions within it.
Signal has a central authoritative server and to use it with any other server you have to modify the source code.
- Signal-Server. signalapp. Github. Published: 2025-01-31T15:34:14.000Z. Accessed: 2025-02-01T09:24Z. https://github.com/signalapp/Signal-Server.
- Signal-Server. signalapp. Github. Published: 2025-01-31T15:34:14.000Z. Accessed: 2025-02-01T09:24Z. https://github.com/signalapp/Signal-Server.
For the avid readers out there, bookwyrm is a fantastic alternative to goodreads.
Yes it’s excellent! Also noting for those that aren’t aware: Goodreads is owned by Amazon.
Is there a way to automatically add books to it when a book in my Calibre Library gets marked as completed?
Unfortunately, the switch from YouTube to PeerTube has not worked for me so far. I can’t find a decent instance (not full of right-wing/conspiracy content) with interesting stuff that also allows me to make an account.
Yes finding the right instance on peertube is a nightmare — and also the general lack of quality content, or subtitling, which makes it as good as useless for deaf people like me.
Ah. I see…

Don’t worry, your successor isn’t offering anything big. You’ll still be around for many more days to come.
I don’t get the joke
Signal is not Fediverse! Element/Matrix is!
Element/matrix aren’t part of the fediverse, either. It doesn’t speak AP.
Matrix is federated, Signal is not.
although it is federated, it isn’t apart of the fediverse, as it doesn’t use activitypub.
I’d argue it’s part of “the fediverse” but not “The Fediverse”.
Are we claiming now that Activity Pub is the only protocol that we can use for the fediverse? I think XMPP is roughly 30 years old at this point, and I’m pretty sure Activity Pub is much younger than that. I could be wrong though.
But regardless, I don’t see why Activity Pub has to be the only protocol we accept to be considered a part of the fediverse. It’s not even like different AP implementations talk to each other all that well. My understanding is that Mastodon doesn’t federate that well with Lemmy, and I haven’t seen Loops or Pixelfed on Lemmy yet either.
I’d be happy to be corrected on any of this though, I haven’t looked too closely into exactly how AP works or how it’s supposed to interoperate with different applications.
Don’t use Matrix the devs knew about sidechannel vulnerabilities and ignored them for years. This is peak negligence and should immediately disqualify you from touching anything security related.
the author literally picked random projects from github tagged as matrix, without considering their prevalence or whether they are actually maintained etc.
if you actually look at % of impacted clients, it’s tiny.
meanwhile, it is very unclear that any sidechannel attack on a libolm based client is practical over the network (which is why we didn’t fix this years ago). After all, the limited primitives are commented on in the readme and https://github.com/matrix-org/olm/issues/3 since day 1.
From your link.
as i say peertube is currently a alt to twitch as well as youtube
Unpopular Opinion Lemmy and PeerTube logo look ugly.
Unpopular opinion: your opinion is not unpopular at all.
I think it’s just the colours for the peertube one. I like that it’s three individual play icons to signify the federation aspect, but the colours are just dull.
PeerTube appears to be completely devoid of content
Youtube is probably the one that you can’t “Just Switch To Fediverse”
Youtube content is mainly by creators. If they won’t leave, there will be no transition. And unlike reddit posts, you can’t just reupload. Because they will copyright strike you and take it down. Also, videos take up a lot more space than just text and some low-res memes like reddit-type sites.
reddit is essentially a bunch of strangers talking to people, moving froms stranger Group A to stranger Group B is very easy to do. The reddit > Lemmy transition is probably one of the easiest. You’re just joining a new group of strangers.
For everything else, your contacts will also need to switch.
For Mastodon, the people you follow will also need to switch. This is even harder than getting your friends to switch.
A lot of youtubers make a living posting videos.
They dont have a good enough reason to risk going to a much smaller audience with no ads and no membership system
They also probably arent knowledgeable enough about computers to switch
For Mastodon, the people you follow will also need to switch. This is even harder than getting your friends to switch.
Well I switched from the birdsite to Mastodon because a) I like to shout in the void and b) see what other people are shouting into the void. Doesn’t really ultimately matter who’s doing the shouting. People who go to social media exclusively for news and updates are a bit strange when you really think about it. You’ve got to have the shout in you.
(I’m only being half facetious here)
Hear me out.
Creators should be hosting peer tubes. And they should host exclusively their own content. Fans of their can subscribe to whatever systems they want to pay and support.
For creators, it’s a backup for when YouTube the project inevitably fails. For fans as well. But it’s also a backup of their content.
Tech-savvy content creators, sure…
Your average content creator that wants to make Minecraft videos? Unrealistic.
I hate the monopoly Youtube has, but all of the federated alternatives have a learning curve the general public isn’t willing to deal with.
Not to mention it lacks any (ethical) monetization options. And the app is absolutely rudimentary, lacking even basic functionality.
Framasoft made it clear they don’t want to make it a Youtube alternative though, however it could be through plugins. So there’d have to be a company or cooperative using it as a base to build upon, which is actually realistic. Especially European ones; not because Asia wouldn’t be interested in being more independent on the US as well, but because Framasoft is from France and Europe actively works towards this goal anyway with lots of money behind it.
You also can’t just switch from whatsapp to signal. I have hundreds of contacts on whatsapp that message me constantly there, and 2 on signal.
@jonjuan That’s totally true! I tried to use WhatsApp just for work and Telegram for my friends and contacts, but only my wife and mom were talking to me there 😂. However, I think it’s important to keep talking to people about alternatives. That way, we can switch from this “proprietary web” to a free one.
FB Marketplace --> Flohmarkt is missing!
I’ve been on Signal for a while now. Have a bunch of groups but iMessage works with everyone.
It’s been a year and a half here on Lemmy. I still spend a lot of time on Reddit, but won’t comment there anymore.
I don’t WANT a Twitter replacement as it’s really only for celebs and idgaf.
I actually see enough value to pay for YT premium (kids complain incessantly about ads).
Friendica doesn’t seem to have an iOS app, and there’s a critical mass issue with wanting to connect with people that I know in real life.
I’m trying to get my Pixelfed feed to be with checking, and trying to be a regular poster, but it’s still REALLY sparse, and none of these offer the endless meme-video-clip scroll that my wife will have to have before switching away from Insta.
Anyone know if loops has a good app out, or if there’s one in the works thats coming out soon?
Great graphic! The only things I use on this list are reddit and youtube. Trying peertube now. I’m confused about whatsapp and facebook messenger - don’t people just use the texting app that comes with their phone?
Facebook Marketplace - > Craigslist
I support the cause in general but: Signal is not federated at all. It may seem like a decent alternative to WhatsApp but is it really? It still falls under the same US jurisdiction. Let’s say the US gov starts agressively prosecuting dissidents and certain minorities (they already do): can and should we still use signal in this case? I don’t think so. Sadly i can’t name a much better alternative. Maybe matrix. But it has other issues.
Signal is open source. They absolutely do always comply with US warrants. They have never provided any information to US law enforcement, because they can’t access it. They literally have no way of accessing the information contained inside the texts. The most they could provide is metadata, but they currently aren’t collecting that. I also think if they started, it would not work well for their user base. You can see all their requests for information, and the responses they gave, here: https://signal.org/bigbrother/


















