cfrelay runs a Nostr relay on Cloudflare Workers and supports the basic NIP-01 protocol.
The Best Citrine Alternatives in 2026
Looking for something like Citrine? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 24 are open source.
Citrine runs a Nostr relay on Android that lets compatible clients send and receive events through the device.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | cfrelay | — | Yes | — |
| 2 | ehagaki | — | Yes | — |
| 3 | Aegis | — | Yes | Android, iOS, Linux |
| 4 | bcr-relay | — | Yes | — |
| 5 | broadcastr | — | Yes | — |
| 6 | blastr | — | Yes | — |
| 7 | AlgoRelay | — | Yes | — |
| 8 | 210Maxi | — | Yes | — |
| 9 | badger | — | Yes | — |
| 10 | Bucket | — | Yes | — |
All Citrine alternatives
ehagaki provides a post-only Nostr client that compresses media on the device before upload.
Aegis signs Nostr events through a simple cross-platform signer, allowing clients to request signing without handling private keys directly.
Bitcredit event traffic is handled by bcr-relay, a specialized Nostr relay implementation written in Rust.
broadcastr transmits Nostr events from one relay to other relays as a stateless alternative to blastr.
blastr publishes Nostr events to multiple relays through a proxy relay running on Cloudflare Workers.
AlgoRelay lets relay operators provide ranked or filtered event feeds through an algorithmic Nostr relay.
210Maxi relays Nostr events only when their content is 210 characters or fewer.
Nostr badge events of kind 8 can be created and issued with Badger, a client for the protocol.
Bucket provides a lightweight testing relay for Nostr client development and protocol experiments.
Coracle supports browsing multiple Nostr relays, filtering posts, and creating custom feeds.
BlazeJump provides core protocol interactions through a minimal Nostr client written in C#.
This comparison list tracks which Nostr clients support different protocol features and NIPs.
bloom combines a self-hosted media server with a Nostr relay for decentralized media sharing.
dispute provides a cross-platform Nostr client that showcases the dart-nostr library.
bark signs Nostr events through a NIP-07 interface backed by NIP-46 remote signing.
atomstr converts RSS and Atom feeds into Nostr events by fetching feed content and publishing it through the protocol.
Denostr implements a Rust-based, cloud-native Nostr relay derived from nostr-rs-relay.
This repository publishes a feature matrix showing protocol capabilities supported by Nostr clients.
Evento provides an open-source Nostr client with a built-in self-custodial Bitcoin Lightning wallet.
DDSR lists Nostr relays configured for different domain-specific purposes.
Bostr manages Nostr relay connections as a relay bouncer, with ongoing development focused on bostr2.
Fenrir-s provides a Kotlin implementation of a Nostr relay, with its source code hosted on GitHub.
Coop provides cross-platform Nostr messaging with a client for chatting privately.
Alternatives to similar tools
What is the best alternative to Citrine?
Are there open-source alternatives to Citrine?
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative
























