0xchat

www.0xchat.com

Secure Chat built on Nostr
App Store:
https://apps.apple.com/app/0xchat/id1637607169
TestFlight:
https://testflight.apple.com/join/AjdJFBmU
Google play:
https://play.google.com/store/apps/details?id=com.oxchat.nostr

Public Key

npub1tm99pgz2lth724jeld6gzz6zv48zy6xp4n9xu5uqrwvx9km54qaqkkxn72

NIP-57 Address

0xchat@getalby.com

Profile Code

nprofile1qqs9ajjs5p904ml92evlkayppdpx2n3zdrq6ejnw2wqphxrzmd62swspp4mhxue69uhhjctzw5hx6egpzemhxue69uhhyetvv9ujuvrcvd5xzapwvdhk65f9k3j

Publishing to

yabu.me

relay.0xchat.com

relay.damus.io

Author Public Key

npub1tm99pgz2lth724jeld6gzz6zv48zy6xp4n9xu5uqrwvx9km54qaqkkxn72

Show more details

Last Notes

2025-03-31 04:13:31

#0xChat v1.0.2-Desktop Beta is now live!
1.Supports NIP-104 MLS secret chat.
2.Copy images directly from the clipboard.
3.The app stays running after closing the window.
4.Fixed Enter key sending messages immediately on desktop.
Download now: https://github.com/0xchat-app/0xchat-app-main/releases/tag/v1.0.2-desktop-beta

2025-01-30 03:46:52

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Maybe a DM relay suitable for NIP-17 should add the recipient’s pubkey to the whitelist.

2025-01-30 03:26:12

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Thanks for trying out 0xChat!
Actually, 0xChat’s open/closed groups do use NIP-29 groups. And we’ve already released a desktop version! Feel free to check it out

2025-01-17 08:52:13

#0xChat v1.4.6 Release
New Features:
* Added reactions and mention notification button to chats. Clicking the button will navigate to the specific chat message.
* Long press the "Like" button on moments to select an emoji.
Bug Fixes:
* Fixed an issue where sending voice messages in Secret Chat failed.
* Resolved incorrect time display for ecash transactions.
* Addressed a bug with video message reactions.
* Fixed an occasional issue where moments could not subscribe to updates.
* Resolved rendering issues for certain notes.
* Fixed a problem where clicking on custom emoji reactions didn’t send the reaction properly.
* Fixed some typos.
Enjoy the updates and improvements!
Download Links:
Download it via [Zapstore](https://zap.store/download)
iOS TestFlight version: https://testflight.apple.com/join/AjdJFBmU
App Store: https://apps.apple.com/app/0xchat/id1637607169
Google Play: https://play.google.com/store/apps/details?id=com.oxchat.nostr
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.6-release/v1.4.6-release.apk

2025-01-17 00:44:44

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I have noticed this issue, will optimize the package size in the future

2025-01-06 16:52:42

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0xChat uses GIF-wrapped DMs, which are not supported by Primal. However, Amethyst supports this type of DM.

2025-01-02 17:51:36

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If you don’t have an Android device, you can choose to copy the URI to nsec.app to log in or directly enter nsec to log in

2025-01-02 17:46:01

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If you are using iPhone or a desktop device, you can open Amber to scan the QR code and log in.

2025-01-02 08:38:42

#0xchat App v1.4.5 & Desktop v1.0.1 Released:
Features:
* Added support for NIP46 login.
* Adapted UI for tablet devices.
* Introduced connection ping status.
* Implemented search functionality for Moments.
* Set default relays for first login.
* Added default reaction emojis.
Bug Fixes:
* Fixed an issue where messages couldn't be sent after joining a relay group.
* Resolved occasional UI flipping issues.
* Fixed an issue preventing images from being moved after zooming.
* Addressed a bug causing voice messages to get stuck in a loading state.
* Fixed file encryption and decryption issues.
* Corrected some typos.
* Fixed an issue with Nostr.build uploads.
### Download Links
Download it via [Zapstore](https://zap.store/download)
iOS TestFlight version: https://testflight.apple.com/join/AjdJFBmU
App Store: https://apps.apple.com/app/0xchat/id1637607169
Google Play: https://play.google.com/store/apps/details?id=com.oxchat.nostr
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.5-release/v1.4.5-release-android.apk
Linux: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.5-release/v1.0.1-release-linux.zip
Macos: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.5-release/v1.0.1-release-macos.dmg
Windows: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.5-release/v1.0.1-release-windows.exe

2024-12-23 02:44:25

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Hello, please check your gift-wrapped DM i sent you a few days ago. I don't use normal DMs that leak metadata.

2024-12-21 03:06:35

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yes

2024-12-20 03:36:42

After months of building, we are excited to announce the release of the first desktop beta version, which supports macOS, Linux, and Windows.
If you encounter any issues during usage, please feel free to contact us.
Enjoy!
Download Links:
Linux： https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.0.0-desktop-beta/0xchat-v1.0.0-linux.tar.gz
Macos：https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.0.0-desktop-beta/0xchat-v1.0.0-macos.dmg
Windows：https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.0.0-desktop-beta/0xchat-v1.0.0-windows.exe
Future Plans:
1. Support NIP-46 login
2. Optimize the UI & UX for the desktop version
3. Improve performance of the desktop version

2024-12-15 17:09:16

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You need to ensure that your relay supports kind 1059 events, as this might be the reason for the issue.

2024-12-15 17:07:25

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Thank you for your question! The name “0x” was chosen because it’s a universal symbol in programming for hexadecimal notation, representing innovation, flexibility, and technology at a foundational level. While it’s true that “0x” is sometimes associated with Ethereum due to its use in Ethereum addresses, our intent was broader.

2024-12-14 03:35:59

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A specific relay is one of the factors, but the most important difference is that both parties use temporary keys, ensuring a certain level of forward secrecy.

2024-12-14 03:34:12

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You can refer to the documentation on our GitHub, which provides descriptions of the three different DM types:
https://github.com/0xchat-app.
We can receive normal DMs but cannot send them. When you receive a normal DM, there will be a yellow mark notification.

2024-12-12 09:31:54

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Thx, will check it 🙏

2024-12-11 06:57:38

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Thank you for contributing to the translation.

2024-12-11 03:49:53

#0xChat v1.4.4 Release
* Fixed the UI freezing issue during the initial setup.
* Optimized the data storage performance of the Cashu wallet.
* Enabled opening external images with 0xChat.
* Added support for the Persian language.
* Added support for customizing the Moment feature.
### Download Links
Download it via [Zapstore](https://zap.store/download)
iOS TestFlight version: https://testflight.apple.com/join/AjdJFBmU
App Store: https://apps.apple.com/app/0xchat/id1637607169
Google Play: https://play.google.com/store/apps/details?id=com.oxchat.nostr
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.4-release/v1.4.4-release.apk

2024-12-10 14:04:18

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Ohhh, thank you for pointing this out! This is a bug, and will work on fixing it.

2024-12-03 16:43:24

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Could you check if the relay is connected? Also, has the other party set up a DM relay and an inbox relay?

2024-12-02 02:56:04

#0xChat v1.4.3 Release
### Bug Fixes
- Fixed the issue where inbox/outbox relays could not be added.
- Fixed the issue where push notifications for voice calls had no sound.
- Fixed the lag issue when loading private chat videos.
- Fixed the issue where custom emoji reactions were not displayed.
### Download Links
Download it via [Zapstore](https://zap.store/download)
iOS TestFlight version: https://testflight.apple.com/join/AjdJFBmU
App Store: https://apps.apple.com/app/0xchat/id1637607169
Google Play: https://play.google.com/store/apps/details?id=com.oxchat.nostr
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.3-release/v1.4.3-release.apk

2024-11-25 11:30:44

#0xchat v1.4.2 release
### New Features
- Added a text size adjustment setting.
- Added inbox/outbox relays setting.
### Bug Fixes
- Fixed a bug where the media section on the user details page would hang.
- Corrected a problem where moments displayed all feeds for blocked users.
- Improved compatibility for private messages sent to oneself without a `p` tag.
- Fixed an issue where base64-encoded images were not displayed correctly.
Download it via [Zapstore](https://zap.store/download)
iOS TestFlight version: https://testflight.apple.com/join/AjdJFBmU
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.2-release/v1.4.2-release.apk

2024-11-16 14:36:34

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I see, will do it next time. Thx

2024-11-16 14:13:14

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You can turn off this push notification option in the “Me - Notifications” settings.

2024-11-16 13:49:47

#0xchat v1.4.1 release
### Features:
* Optimized video player UI with support for landscape mode
* Added audio configuration in settings
* Enabled copying of ecash tokens from ecash messages
* Support for media deletion
### Bug Fixes:
* Fixed intermittent issue where redeeming ecash would load indefinitely without error prompts
* Fixed occasional gray screen when sending ecash
* Resolved issues with npub.cash token claims
* Fixed “mark all as read” function not working
* Fixed issue where switching accounts did not clear notification red dots
* Resolved issue where creating an account could lead to logout
* Fixed gray screen issue in Hungarian language
* Fixed issue where @ mentions were not displaying in note sending page
* Changed long-press delete button to red for emphasis
Download it via [Zapstore](https://zap.store/download)
App Store: https://apps.apple.com/app/0xchat/id1637607169
Google Play: https://play.google.com/store/apps/details?id=com.oxchat.nostr
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.1-release/v1.4.1-release.apk

2024-11-14 16:00:26

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Yes, including macOS, Linux, and Windows.

2024-11-14 15:54:49

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Yes, there is no web version. But a desktop version will be released soon.

2024-11-09 13:28:12

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Thx for letting me know, will look into it 🙏

2024-11-08 14:53:51

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Nice, thank you

2024-11-08 04:05:53

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There is an issue with Hungarian language.
You need to change the default language first, or wait for the next update.

2024-11-08 04:02:10

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Try to upgrade your build tools version, we are using v4 signer.

2024-11-08 04:00:20

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Any more infos? i can’t reproduce this issue on my end 🤔

2024-11-08 03:13:46

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Can you try using the GitHub link to see whether it works?
https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.0-release/v1.4.0-release.apk

2024-11-08 03:12:04

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Hey, yes. We have upgraded the signature to scheme v4 in v1.4.0. But I don’t understand why shows this error; it should work.🤔🤔

2024-11-07 09:36:08

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Thanks for the suggestion; I really appreciate the thought you’ve put into this.
In fact, the most suitable approach would be to use a user’s outbox relays rather than general relays to fetch their notes. Our current outbox model isn’t fully implemented yet, planning improvements in this in the near future.

2024-11-07 09:27:51

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Thanks for your valuable feedback! I’ll work on improving this in future updates.
By the way, could you let me know which mint you’re using? I’d like to replicate the issue on my end.

2024-11-07 07:19:53

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Currently, it simply uses your outbox/inbox relays and the note’s hint relays. Later, it will use the contacts’ or follows’ outbox relays.

2024-11-07 05:23:09

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I will change “general relay” to “outbox/inbox relay” to prevent any misunderstanding.

2024-11-07 05:21:31

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It’s hard to say; it’s likely just a legacy issue. Before the outbox/inbox module NIP was introduced, most Nostr clients stored relay configs in kind3, but this isn’t the standard approach.

2024-11-07 05:17:19

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Sorry for the misunderstanding. Actually, the general relay list configuration in 0xChat is the public outbox/inbox module. In Amethyst and some other Nostr clients, general relays are placed in the kind3 event, which is likely a historical legacy issue rather than part of the standard NIP.

2024-11-07 03:10:39

Major Update v1.4.0-release
**Features:**
- Enhanced UX for a Telegram-like experience
- Updated message and calling sounds, with special thanks to @Freakoverse for the audio
- Added support for CashuB tokens in the Cashu wallet
- Added support for 'input_fee_ppk' in the Cashu wallet
- Improved compatibility with Android 9
- Enabled support for 'kind 15' encrypted file messages
**Bug Fixes:**
- Fixed relay initialization to prevent occasional overwriting of the general relay list
- Resolved issue preventing call cancellation
- Corrected "ecash wallet keyset is invalid" error
- Fixed repeated prompts when sharing links on Android
- Fixed initial loading issue with group messages
- Fixed issues with link sharing on iOS 18
- Resolved stalling when loading video thumbnails on Android
- Corrected minor typos
Download it via [Zapstore](https://zap.store/download)
App Store: https://apps.apple.com/app/0xchat/id1637607169
Google Play: https://play.google.com/store/apps/details?id=com.oxchat.nostr
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.4.0-release/v1.4.0-release.apk

2024-10-26 11:43:28

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#note14ut…k05x

2024-10-26 11:42:46

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The implementation principle is to send a gift-wrapped note to a list of npubs, allowing only those npubs on the list to decrypt and view the note. However, it’s difficult to prevent npubs from replying to your note.
But yes, maybe other solutions can be implemented in the future. It’s a very interesting experiment.

2024-10-26 11:30:10

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Thank you for your great proposals! Who can reply to a note is quite challenging for Nostr, haha.

2024-10-25 18:58:26

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Thx will fix it 🫡

2024-10-16 23:53:32

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Thank you for providing the information. This helps us identify and fix the issue.

2024-10-16 20:27:08

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The new account you tested didn’t set up lnurl, right? In that case, it will be sent to the new account’s npub.cash address. You can click on the wallet to automatically check and claim it.

2024-10-16 12:10:45

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Yes, this is an essential feature for the NIP29 group :)

2024-10-16 11:03:58

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It is recommended to use a self-hosted relay; however, there is currently no suitable tool for group migration.

2024-10-16 06:36:58

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Btw, If the recipient does not have an lnurl, it will default to zapping to the recipient’s npub.cash address. Did the recipient click on the wallet to check if there are any sats to claim?

2024-10-16 02:00:19

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Ah, thx for the feedback, will look into this issue

2024-10-16 00:04:41

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Have you tried uninstalling and reinstalling?

2024-10-15 16:07:06

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That’s a bit strange, it works when testing on iOS 18. 🤔🤔

2024-10-15 12:52:42

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it works for me 🤔🤔

2024-10-15 12:45:53

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Generally, we will provide a beta version before officially submitting each version to the App Store/Play Store.

2024-10-15 12:24:10

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Have you installed a previous version before, or is this your first time installing it?

2024-10-15 12:11:34

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Yes, hasn’t updated the wallet yet. It’s planned to be included in the next major update. 🙏

2024-10-15 11:13:10

#0xChat 1.3.5-release is now available on Zapstore, App Store, and Google Play. Compared to v1.3.3-release, the updates are as follows:
### Features:
* Added a message jump feature for replies, search, and paginated message loading.
* Added encryption for audio and video in DMs/private groups before uploading.
* Added support for custom Blossom servers, and removed the default 0xChat file server.
* Added the ability to preload group messages before joining.
* Optimized REQ and improved performance.
* Highlighted messages after jumping to a specific location.
* Open the default browser instead of the internal webview when clicking on a URL.
### Bug Fixes:
* Fixed occasional DM sending lag and failure issues.
* Fixed the mute words list override issue.
* Fixed the .onion settings issue.
* Fixed the freeze when clicking "hang up" on voice calls.
* Fixed the P2PK ecash claim issue when logging in with Amber.
* Fixed the push notification settings switch not working.
* Fixed the issue with zap and reaction messages not loading.
* Fixed group discovery not updating the group member count.
* Fixed disappearing avatars when editing profiles.
* Fixed the freeze when selecting "Camera" on Android.
* Fixed the missing lock icon in secret chat conversations.
* Fixed unsorted zap records in settings.
* Fixed the inability to set a badge profile.
* Fixed Android push notification sound issues when the app is in the background.
* Fixed Moments showing only one link when multiple video links are shared.
* Fixed Moments not displaying webp images.
* Fixed the long badge load time issue.
* Fixed the error when removing multiple people from NIP29 groups.
* Fixed inconsistent messaging for leaving vs. being removed from NIP29 groups.
* Fixed some push notification issues.
* Fixed an issue where clicking an image sometimes wouldn't display the full-size version.
* Fixed an issue where images sent by the user in a channel were displayed as received.
* Fixed template messages displaying as "unknown."
* Fixed an issue where adding NWC failed.
* Fixed a video upload issue on iOS 18.
* Fixed an issue with adding a custom NIP96 server.
* Fixed an issue with removing an admin from a NIP29 group.
* Fixed an error when switching to the French language.
Download it via [Zapstore](https://zap.store/download)
App Store: https://apps.apple.com/app/0xchat/id1637607169
Google Play: https://play.google.com/store/apps/details?id=com.oxchat.nostr
iOS TestFlight version: https://testflight.apple.com/join/AjdJFBmU
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.3.5-release/v1.3.5-release.apk

2024-10-14 11:21:45

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Thank you for your suggestions, all four are great ones! We’ll add them to our planning list.

2024-10-14 00:00:03

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Ah I see, will fix it

2024-10-13 23:11:00

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What’s your suggestion? 🤔

2024-10-12 13:17:02

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- When font size adjustment?
It’s on the plan list

2024-10-11 14:52:10

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Yes, it hasn’t been merged yet
https://github.com/nostr-protocol/nips/pull/363

2024-10-11 13:32:40

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Yes, so you can also set custom ICE relays in 0xChat if you want to control your data and protect your privacy

2024-10-11 13:21:18

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I’m not sure what you mean by “leaker.” If you’re referring to leaking your IP to the person you’re calling to, you can enable the “always use relay” option in 0xChat. https://image.nostr.build/4138a573dc4343dc1f0ffd207549fd4c9529e30eb2756a8941c78758477714fd.jpg

2024-10-11 13:03:21

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Why?

2024-10-11 04:37:57

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0xChat uses WebRTC for audio/video calls. One difference from Signal/Telegram solution is that we use NIP-100 for signaling and also support custom ICE servers.

2024-10-09 21:26:55

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It’s fixed in the v1.3.4-beta, pls give it a try
#note1zwx…rycx

2024-10-02 04:38:17

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🫡

2024-10-02 02:59:48

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These are two different lists, meaning your follow list will not affect your contact list, and your contact list will not affect your follow list. In 0xChat moments, you have the option to view the feed of your contact list, but this option is not available in other clients.
Both the contact list and the follow list will sync to your relays. The difference is that the contact list is encrypted.

2024-10-01 23:41:25

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They are different lists, and the contact list is encrypted

2024-10-01 09:15:09

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I mean the Apple Store & Goole play versions will update next week :)

2024-09-30 22:35:08

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https://github.com/hzrd149/blossom

2024-09-30 16:47:39

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Next week

2024-09-30 15:40:19

#0xchat v1.3.4-beta release
### Features:
* Added message jump feature for replies, search, and paginated message loading
* Added encryption for audio and videos in DMs/private groups before uploading
* Added support for custom Blossom servers, and removed the default 0xChat file server
* Added the ability to preload group messages before joining
### Bug Fixes:
* Fixed occasional DM sending lag and failure issues
* Fixed the mute words list override issue
* Fixed the .onion settings issue
* Fixed the freeze when clicking "hang up" on voice calls
* Fixed the P2PK ecash claim issue when logging in with Amber
* Fixed the push notification settings switch not working
* Fixed the issue with zap & reaction messages not loading
* Fixed group discovery not updating group member count
* Fixed disappearing avatars when editing profile
* Fixed the freeze when selecting "Camera" on Android
* Fixed the missing lock icon in secret chat conversations
* Fixed unsorted zaps records in settings
* Fixed the inability to set badge profile
* Fixed Android push notification sound issues when the app is in the background
* Fixed Moments showing only one link when multiple video links are shared
* Fixed Moments not displaying webp images
* Fixed the long badge load time issue
* Fixed the error when removing multiple people from NIP29 groups
* Fixed inconsistent messaging for leaving vs being removed from NIP29 groups
iOS TestFlight version: https://testflight.apple.com/join/AjdJFBmU
Android APK version: https://github.com/0xchat-app/0xchat-app-main/releases/download/v1.3.4-beta/0xchat-v1.3.4-beta.apk

2024-09-29 01:05:41

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Great 🙏👍

2024-09-28 11:59:39

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The file server user selected, and a custom NIP-96 server can also be added.

2024-09-28 05:13:21

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have you set up Tor network?

2024-09-28 04:50:23

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Did your system grant network permissions to 0xChat? If it did, we will release a new version in a few days, and you can try again then.

2024-09-28 04:01:45

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Is the SOCKS Proxy setting enabled? Also You can try force closing the app and then reopening it.

2024-09-26 21:21:24

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For Android, we have integrated Unifiedpush with an embedded FOSS-FCM distributor, also allowing users to select their preferred distributor like ntfy etc in the settings.

2024-09-25 15:47:37

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I think I’ve figured it out. I believe they are using Amber to log in, and there’s a slight issue with using Amber to sign the P2PK token. We’ve fixed it but haven’t released the updated version yet.
One solution is to go to wallet to generate non-P2PK tokens and then copy and send them via DM.
Another option is to wait for us to release the new version

2024-09-25 15:40:19

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Are they using v1.3.3?

2024-09-25 14:57:02

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Could you please provide more details about the redeeming problem?

2024-09-24 22:47:24

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Native desktop version is under development

2024-09-24 22:45:55

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#note14sl…z2yh

2024-09-24 14:29:29

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Yeah, sorry for the miscommunication. The images sent via DM are end-to-end encrypted, while others (audio, video) are not. Will fix it in the next update.

2024-09-24 12:22:30

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I don't know much about NostrChat, but it seems to support NIP-28 channels, so channel chats should be compatible.

2024-09-24 01:07:06

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I think you can try using Amethyst to claim it, or copy the ecash token to other ecash wallets to claim it.

2024-09-24 00:11:07

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#note1e44…z7xy

2024-09-24 00:10:43

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Both 0xChat and SimpleX offer a SOCKS proxy feature, which you can enable and use with the Tor network to hide your real IP.

2024-09-22 08:27:22

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We have blocked most of the spam not only from ReplyGuy. It seems to be working for now.

2024-09-22 00:32:29

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Our relay receives other events, but has already blocked the replyguy.

2024-09-18 21:09:16

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Thx, will check it 🫡

2024-09-17 10:43:33

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Currently, iOS does not support Amber login.

2024-09-17 10:07:42

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Will make the notification service more and more stable. 💪

2024-09-17 10:01:59

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0xchat is primarily a DM app, but it also has a moment feature, so it can receive notifications for likes and zaps as well. If you don't want to receive these notifications, you can turn them off in Settings - Notifications.

2024-09-16 18:21:03

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That's great to hear! If you need any help figuring out how to use #0xChat, feel free to reach out. We're here to help with any questions you might have.

2024-09-16 18:12:04

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Only clients such as Amethyst, Coracle, Nostrmo, etc., that support NIP-17 DMs, can receive messages sent from 0xChat.
Also we recommend using NIP-17 DMs instead of NIP-04 DMs, as NIP-17 helps hide your metadata, enhancing your privacy.