Search results for tag #deltachat
What are your top 5 favorite encrypted chat programs, **for the UX** (not necessarily end-to-end encrypted), in order of preference? SSL encryption to a centralized server is the minimum sufficient here. This will reveal how wildly all our opinions differ. It will be interesting to see the diversity of preferences. I'll start, as an example:
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1) #Deltachat
2) #Signal
3) #Conversations
4) #Fluffychat
5) #Flarum
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#infosec #Discord #OpenSource
Instal·lar el teu propi servidor per a #DeltaChat és molt fàcil comparat amb la complexitat d'un servidor xmpp com ara ejabberd.
Els servidor chatmail relay (Delta Chat) els muntes executant un script en local que instala i configura absolutament tot en el servidor remot. Afegeixes els registres DNS que el mateix script et demana i ja està.
ejabberd (#xmpp) és més complexe, has de configurar a mà moltes línies de ejabberd.yml, obrir ports i afegir un munt de registres DNS.
#DeltaChat breaks the one app, one ID rule of phone-number-based apps by supporting multiple chat profiles. This allows for true private messaging where you can keep a public identity for the Web or Fediverse separate from a private one for family and friends. Managing multiple selves is a new experience for many, but it is key to digital autonomy. We are working to make multi-profile handling even smoother in upcoming releases to ensure switching contexts is seamless. (3/3)
The total privacy of #DeltaChat has a trade-off: there is no global directory. Connecting for private messaging requires a direct QR scan or using an existing channel to exchange invite links. The hurdle is often the readiness of friends, family, or those around you to switch. However, once connected, the app is an enjoyable daily driver. It is about moving to a space where you cannot be found by strangers, but can still enjoy modern, reliable chat with those who matter. ... (2/3)
While platforms like #Matrix or #Signal manage user identities on a server, #DeltaChat and #Chatmail are not platforms in the classic sense. They operate without a central registry, meaning there is no central gatekeeper to grant or deny access. This setup for private messaging naturally complicates invasive age verification. Without a public registry or user discovery, there is no technical hook to verify users. #Chatmail also enforces E2EE by rejecting all unencrypted data. ... (1/3)
@delta
Would it be possible to have such an information as a service message inside #DeltaChat ?
... only if you are an user of this relay?
@Realist Es gibt broadcast channel, aber nur noch verschlüsselt. Dh dass die Empfangsseite auch Delta Chat oder einen der https://chatmail.at/clients braucht. Das onboarden gelingt in vielen Kreisen recht problemlos mittlerweile, wenn man vergisst, dass das Email system benutzt wird :)
Als "email-listen-verwaltung" für das Versenden von Klartextmails ist #deltachat hingegen nicht mehr gedacht. Da sind dann eher klassive email programme zu empfehlen, die nicht auf Verschlüsselung fokussieren.
@d1 you know where it has never happened to me? in #DeltaChat
@ariadne
arcanechat.me server reached 10k users! 🎉🎉🎉
the server is still using just ~1.50GB of RAM and almost 0% of CPU, disk is at 8% used only (including whole operative system files etc)
it is extremely cheap to host thousands of users for #ArcaneChat / #DeltaChat with a #chatmail relay
I also just check the server like once per month just in case to check everything is fine, but it literally causes near ZERO maintenance cost, no problems, it just works you can practically forget the server exists
@eff
NOCH BESSER:
Gleich auf dezentrale Dienste umsteigen, wie #Matrix oder #DeltaChat.
🧐
De fedivers de la #MissatgeriaInstantània només n'hi ha dos: #DeltaChat i #xmpp
Però Delta Chat té millor aplicació, de llarg, tant per #iOS com per #Android i també per l'escriptori dels diferents sistemes operatius.
I és programari lliure, descentralitzat, protocol obert i auditat. I és europeu, no el controla cap milionari ianqui.
Alt...
De WhatsApp a Delta Chat
@sunflowerinrain #deltachat is for friends and family, without public discovery, without a central registry of eg. phone numbers or other id - this also means, onboarding is one of the easiest around - only a (nick)name is required!
there are reports of groups that not get enig on signal/threema/matrix/xmpp - and used deltachat at the end for that reason (2/2)
We engage with decentralization protocols a lot (many nerds love to) but make no mistake: in the end, the app needs to work and be easy to use. #deltachat is a cross-platform FOSS offering, with guaranteed security levels, close to user expectations ... major factors in driving adoption!
True, the email system is not necessarily better than #xmpp ... but please compare with http://chatmail.at which is fast, ephemeral and secure, with delta inherently being a peer-to-peer E2EE messenger :)
@Torx @hanscees nb: #deltachat onboarding is one of the easiest around - only a (nick)name is required
there are reports of groups that not get enig on signal/threema/matrix/xmpp - and used deltachat at the end for that reason
@Torx @hanscees #deltachat is for friends and family, without public discovery, without a central registry of eg. phone numbers or other id.
it is recommended to onboard first with a little group of people together.
and start from there, with ppl willing to change. one will not replace whatsapp the first day, maybe not at all. but that way one can shift important private communication, so bigtech becomes less and less important in that area
@accionclima @eldelacajita y a mí. Yo he llegado a la misma conclusión, y aunque a nivel individual tengo claro que para mí las opciones son @delta y @matrix , fui tan pesado con la migración a #Telegram que siento que he perdido toda credibilidad. No me veo capaz de migrar a mi familia de nuevo, que les costó el cambio y lo hicieron por mi
@lamarea si, uso delta.chat para mis cosas mas importantes.
También xmpp pero delta.chat le ha ganado en usabilidad y ahora que empieza a haber mas apps aun mas (arcanechat)
#deltachat #arcanechat #xmpp
It took a while but it's shaping up nicely :) Post-Quantum Cryptography and Reliable Deletion, better known as Forward Secrecy, are going to become available in 2026 in #deltachat. For more details, including the recent #fosdem26 talk recording:
@anon_4601 @dansup #deltachat does not require a phone number nor you have to provide your address nor a SIM card is required.
you can use it even without a phone.
it uses SMTP/IMAP under the hood, with a random address. nothing is persisted on the server, for metadata, see https://delta.chat/en/help#message-metadata
@chris I have no experience with hubzilla, but if there are libraries to use it with python etc. someone could create or port the bridge I did to it or add support for hubzilla to it
my #mastodon #bot actually also works with #friendica accounts, if #hubzilla can be used with mastodon clients chances are high the bot will work with a hubzilla account
I am here once again asking you to switch to #decentralized solutions, the answer is never centralization,
if you are going to leave #WhatsApp switch to #ArcaneChat, #DeltaChat, #XMPP, #Matrix, etc.
#Signal #SignalAppp #digitalindependence #digitalautonomy
it could have been much easier to handle with #ArcaneChat & #DeltaChat
Digital Independece Day challenge for you 🫵
Move at least one family or friend to ArcaneChat 💜 by @adbenitez Enjoy! #webxdc #foss #deltachat #arcanechat
@dialektgefahr @holger I also recommend #DeltaChat, there is actually some teachers using it with students in universities and schools
Ever wondering where the QR codes in #deltachat come from? each of them is handmade, as everything in delta :) #fosdem
Alt...
person drawing a QR code on a chalkboard
Now in the #FOSDEM live stream: Holger introducing #autocrypt2, a mechanism to protect against store-now-decrypt-later attacks, to be introduced in Delta!
https://live.fosdem.org/watch/k4201
More details about the talk:
https://fosdem.org/2026/schedule/event/TV7GCC-autocrypt_2_post-quantum-cryptography_and_reliable_deletion_forward-secrecy/
#DeltaChat #forwardsecrey #reliabledeletion
#XMPP groups are centralized depending on a single server, if server dies the group is gone, server stores group metadata
#Matrix servers store a lot of group metadata across servers
with Delta Chat the server stores ZERO metadata/state you don't depend on any server and can easily migrate your profile profile keeping group state and history in your devices
if #DeltaChat had "super groups" with admin/moderation for public rooms, would you switch?
https://support.delta.chat/t/spec-proposal-super-groups/4644
| yes, please!: | 0 |
| no: | 0 |
@parismarx #DeltaChat is a strong miss in that article...
Express yourself securely, unbounded, freely
#DeltaChat #privacy #security #decentralization #diday #digitalindependece #autonomy #independence
If you are looking for a messenger that doesn't depend on US infrastructure (or any other country actually) take a look at #DeltaChat is an #European alternative messenger, it is #anonymous, #decentralized, end-to-end #encrypted, #openSource and free!
it is multi-platform, get it for your system at https://get.delta.chat
#sovereignty #Europe #sovereign #diday
@adbenitez @fasnix @x_cli @eff @cmccullough @delta Sometimes I honestly wonder: when do we cross the point where it makes more sense to tell what is NOT good about #DeltaChat. It is by far the shorter list.
Please check out https://delta.chat and spread the use about this messenger.
Developed in Germany, end-to-end-encryption by design, using email-infrastructure (therfore cannot get turned off by an authoritarian state), including applets, like polls, todo-lists, calendar, collaborative work on documents, games, ...
I use it with several people and really can recommend it :)
#DeltaChat
@Distante #DeltaChat, it is decentralized, doesn't require phone numbers or any private data, onboarding is smooth much easier than in signal, similar UI (it is a signal fork) it has much better multi-device and multi-profile support, secure in-chat mini-apps like notepads, to-do lists, shopping lists, etc
there are alternatives, but they will not gain momentum if you don't promote them and stop misinforming people selling a centralized silo running on amazon as #sovereign
@leanderlindahl
it is never too late to #GoSovereign 🌱
#OwnYourData #decentralization #privacy #DeltaChat #ArcaneChat #digitalindependence #sovereign
when you are trying to sleep at night and suddenly remember that #ArcaneChat / #DeltaChat are the only piece of software out there that makes it possible easily and for free to have a #decentralized #e2ee #mailinglist #newsletter (called "channels" inside the app) that is portable, doesn't depend on a specific/central #email server and can be easily migrated to a completely different server / address without any visible change or disturbance for your subscribers
all FREE and without limits 🤯
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woman in bed with big opened eyes
@rl_dane you can toot from #DeltaChat with the mastodon bridge! discover that and other bots here:
https://deltachat-bot.github.io/public-bots/
an artist drafting items for a new #deltachat wallpaper. including #webxdc #wonster 🤘 other ideas? some important items missing?
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sketchbook with handdrawn deltachat logo, chatmail logo, rocket, phones, message bubble, monster, cats and dino
@adbenitez @metin you wrote a message about the fact that you use #deltachat for much more than messaging using webxdc mini apps
I think more should be written about workflows like that.
@metin for chat app: #DeltaChat https://delta.chat
it is an encrypted, private, decentralized, multi-platform #chat app, with good multi-device and multi-profile support
with it you don't depend on a single server, all your data, chats and contacts live in your pocket, e2e encrypted, without depending on a particular server, you can easily migrate from server to server without losing any chat or groups!
it also has #offlineFirst in-chat mini-games and tools!
Segunda oportunidad para @delta , esta vez usando el cliente/fork #arcanechat desarrollado por @adbenitez@masto.es
Second chance to #deltachat, this time using the @arcanechat client/fork developed by @adbenitez@mastodon.social
#deltachat does
- no bindings to public handles/numbers
- no address-book upload
- not do public contact or group discovery
- not have critical persistent server state (!)
Social identification is private, between people though ephemeral #P2P #E2EE messages.
Servers see messages with random sender and recipient addresses, but those can not be mapped to a phone number or public handle. Servers see IP addresses. But you can use Tor, or a VPN, if you want to hide that.
It' not all bad :)
@goebbe #DeltaChat doesn't have group admins, but recently experimental broadcasting channels were added, that mean teachers can have their own news/announcements broadcast to notify the class about events, appointments, share homework material etc, also for a channel to notify the parents etc. besides other groups and channels among teachers and other workers of the school etc.
New version of the #BabelDungeon apps!!!
✨ what is new? ✨
new light theme and the app will adapt to light/dark mode of your system!
new welcome screen to easily allow to start new game or import backup
now when starting a new game you get to decide what language do you want to learn of the pair, ex. in the Babel Dungeon German/English you can learn German as English speaker or English as German speaker!
and more!
#webxdc #DeltaChat #languageLearning
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screenshot of the main screen of Babel Dungeon (German/English) with "new game" and "import game" buttons
@adele with #DeltaChat you also have the in-chat mini-apps that are useful just to have tools in your "Saved Messages" chat that have synchronized state across all your devices without depending on a central service, ex. notepads, to-do lists, shopping lists, "authenticator app" codes, Calendar, etc.
also Delta Chat is the only one of those that offer an easy way to migrate from server to server without losing your chats or contacts!
I am using it with my family since years
@josephb you can also join this #PixelSocial instance (an anonymous social network inside #DeltaChat) to give your chatlist some content while you convince friends to join Delta Chat and wait to get more contacts:
@bogo #ArcaneChat is just a #DeltaChat client, my main user is... wait for it... ME! so it is basically Delta Chat with some tweaks to my taste, I shared it and it turns out some other people seem to like it, according to the #GooglePlay downloads it is mainly used in #Russia, #Cuba, #USA, #Iran, #Germany and #India
I don't actively try to convince people to use it, and in general it is better to push for DC that is multi-platform, then in #android some might prefer AC as their DC client
I survive without #WhatsApp, without #Telegram, without #Signal, without #Teams, without #FacebookMessenger even if social pressure is huge (for WhatsApp in particular)
My main discussions channels are #email, #xmpp and the #Fediverse
I've tried #deltachat but removed it because I have no contact using it.
@opensourceopenmind similarly, I got my family and friends to talk to me via #DeltaChat because I simply don't have #WhatsApp, #Telegram etc. in my phone, I never try to convince them talking about encryption or open source, I simply say "I don't use that apps, you can reach me in this one" and then it is about a practical problem and not ideological one, I don't go saying "you should uninstall whatsapp now" but they are more willing to respect/understand your own ideological decisions
@delta Hi, can I set a tutanota account with #deltachat?
#DeltaChat
... [SENSITIVE CONTENT]
communications into iran are currently challenging due to the shutdown by the iranian .gov
currently working around this. if you are outside of iran and need to reach someone via #deltachat #chatmail we will hopefully have a solution.
@vinculum0 thanks for putting up one more server. Is there a way to be chosen randomly by people installing #DeltaChat for the first time?
I'd be curious what your experiences are after a year or so; daily users, bandwidth–, storage– and hosting costs.
Thanks for putting it up! 🤗
We hereby challenge _all_ other messaging apps, FOSS or not, to provide a more convenient private onboarding experience than #deltachat
1. Install app
2. "Create new profile"
3. Enter nick name, tap "Agree and continue"
4. Tap "+" and "new contact" and provide/scan qr code/link
Voila! A secure private chat, familiar to those coming from Whatsapp or Telegram (without "AI", with #a11y).
Note: chat identities are private and can not be queried or discovered. Servers keep no track or metadata
Alt...
Start screen of https;//get.delta.chat apps which shows
Delta chat logo (Greek letter delta)
Secure decentralized chat
"Create new profile" button highlighted
Alt...
Create profile screen
With a field to enter a name ... "Fediverse chicken" was typed
A link to the privacy policy of nine.testrun.org, the default onboarding chatmail relay
A highlighted button "agree and continue"
A button "use other server"
Alt...
Screenshot of newly created profile
Title bar "fediverse chicken"
Two chats in the chat list:
"Device messages" with instructions how to setup contact with another chat profile
"Saved messages" where you can "save" messages from other chats to memorize them
We'd like to remind everyone that a self-hosted #chatmail relay is best shared in some wider than family circles. In crisis situations everbody does better when helping others.
A typical 1gb RAM chatmail relay VPS for 5-10 eur per month supports 50k+ daily users.
chatmail VPSes are stateless. You can wipe all disk state, reinstall and chatting will resume. Conversely, #deltachat does not keep or depend on any server state .Operators under pressure do not need to feel bad to hand over data.
La idea de pasarse a XMPP ya como que me remata, porque todo el trabajo de pasar a tu entorno recae en el que lidera la propuesta y para eso hay que tener entusiasmo y fuerza.
Tuve una época en la que estuve usando #deltachat con el correo electrónico y si hay que hacer esfuerzos en promocionar sistemas (en mi opinión) es en el correo electrónico. Mecanismo que empezamos a perder porque todo el mundo tiene uno, todo el mundo lo necesita, pero nadie quiere pelear por el suyo. Igual que con el fediverso.
1 cent per five years .... is the current marginal hosting cost for a #chatmail address, with which #deltachat apps facilitate world-wide private messaging including interactive #webxdc apps that run end-to-end encrypted in any chat group.
<1 Million EUR per year is the estimated marginal hosting costs for 350 Million EU citizens. Such scaling requires, however, research and development, including careful UX and #cryptography work. Related writing from @gordon
https://newsletter.squishy.computer/p/cryptography-scales-trust
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screenshot of key excerpt from the referenced post:
"When the network is built on cryptographic protocols, we don’t have to trust anything in-between. We don’t have to trust the computers, the wires, the institutions, beliefs, or kinship of the network participants. We can trust the math. All we have to do is verify the message with cryptography.
This is a powerful primitive for scaling trust, because it means everyone on the network can cooperate together, even if they don’t trust each-other. The costs to producing high-trust results are greatly reduced, and we can spend our coordination efforts on building larger, more fine-grained, more complex networks of cooperation."
Decir que durante el #apagón, varias amistades que se pusieron #DeltaChat "por mi" han podido ir comunicándose muy a trancas y barrancas cuando tenían algún momento de conexión. Mientras, me explicaban que WhatsApp estaba totalmente cortado, al igual que las llamadas telefónicas normales.
Si tenéis experiencias similares con Delta Chat u otras alternativas libres, compartidlas por favor.