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Delta Chat: The e-mail messenger. No new protocol, no need to verify, nothing.delta.chat/en/
3 sats \ 3 comments \ @moel 18 Nov 2022 bitcoin
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The Introduction of Keychat
2269 sats \ 10 comments \ @anon 1 May 2024 nostr
Lockbit-chat: secure P2P messenger with LN integration.github.com/lockbitchat/lockbit-chat
159 sats \ 8 comments \ @supratic 14 Aug 2025 lightning
Introducing Pulsar a private nostr chat app that protects your metadata
12.3k sats \ 31 comments \ @bitcoinplebdev 22 Aug 2023 nostr
Secure messaging, anywhere - Briarbriarproject.org/
75 sats \ 1 comment \ @Rsync25 24 Jul 2024 alter_native
Email is Broken — Can Nostr Fix It?primal.net/a/naddr1qvzqqqr4gupzppna0k8s3az5vx8l2rkfs80p5e46c52fmz938pvf5zrp0zwwtvz0qy88wumn8ghj7mn0wvhxcmmv9uq3wamnwvaz7tmjv4kxz7fwwpexjmtpdshxuet59uqzzetdv95kcttfwvkkyun0ddjkutfdvdskuttwdaehgu3dve5hsttfws4ga6wf
55 sats \ 61 boost \ 1 comment \ @jdm 28 Dec 2025 nostr
A summary for all proposed approaches to private messages (DMs, group chats,...)gist.github.com/staab/f8284af12450dbbdcead6e0c3ed95e2c
440 sats \ 0 comments \ @AR0w 31 Jul 2023 nostr
Secure peer-to-peer chat that is serverless, decentralized, and ephemeralgithub.com/jeremyckahn/chitchatter
21 sats \ 0 comments \ @ooo 2 Oct 2025 tech
A Formal Analysis of Apple's iMessage PQ3 Protocol [pdf]www.usenix.org/system/files/conference/usenixsecurity25/sec25cycle1-prepub-595-linker.pdf
11 sats \ 0 comments \ @hn 9 May 2025 tech
Anigma - An Open Era of Messagingwww.thrillerbitcoin.com/anigma-nostrgram/
3187 sats \ 14 comments \ @happy 7 Sep 2022 bitcoin
Bitchat explained simply
1488 sats \ 47 comments \ @bitcoin_devs 20 Jul 2025 bitcoin
Jack Dorsey tests Bitchat — decentralized messaging without internetcointelegraph.com/news/jack-dorsey-launches-bluetooth-relayed-decentralized-messaging-app-bitchat
51 sats \ 2 comments \ @siggy47 9 Jul 2025 tech
Introducing Marmot: The Future of Secure Messagingprimal.net/jeffg/introducing-marmot-the-future-of-secure-messaging
124 sats \ 0 comments \ @MerryOscar 2 Oct 2025 nostr
Revolt: Open-Source Alternative to Discordrevolt.chat
10 sats \ 0 comments \ @hn 6 Mar 2025 tech
Quiet - Private messaging. No servers.tryquiet.org/
102 sats \ 1 comment \ @isolabellart 3 Nov 2023 tech
NostrDM: a 1 to 1 instant private chat via Nostr
191 sats \ 1 comment \ @aiiixiii 2 Nov 2025 nostr
MLS: The Naked King of End-to-End Encryption - SimpleX Chatwww.poberezkin.com/posts/2025-08-12-mls-the-naked-king-of-end-to-end-encryption.html
1022 sats \ 4 comments \ @nout 13 Aug 2025 crypto
Nostr: A censorship-resistant messaging protocol · Issue #196 · net4people/bbsgithub.com/net4people/bbs/issues/196#issuecomment-1379713057
399 sats \ 1 comment \ @satup 12 Jan 2023 nostr
chachi.chat: A Relay-based Group Chat Client for Nostrwww.nobsbitcoin.com/chachi-chat/
31 sats \ 0 comments \ @BitcoinIsTheFuture 24 Nov 2024 bitcoin
[Call Summary]: Secure, Confidential Group Messaging on Nostr
1227 sats \ 12 comments \ @billytheked 6 Jun 2025 nostr
Built On Bitcoin’s Lightning Network, BLIP Wants To Make Your Chats Unstoppablebitcoinmagazine.com/business/blip-encrypted-chat-on-bitcoin-lightning
364 sats \ 8 comments \ @029b92a10f 16 Nov 2022 bitcoin
Truly secure chat End to end encrypted chat with no central server.sphinx.chat
52 sats \ 2 comments \ @spot 29 Oct 2023 bitcoin