1
Also covers open source · same kind of open-source project
blastr publishes Nostr events to multiple relays through a proxy relay running on Cloudflare Workers.
Alternatives
The Best cfrelay Alternatives in 2026
24 alternatives0 free · 24 open source
Looking for something like cfrelay? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 24 are open source.
cfrelay runs a Nostr relay on Cloudflare Workers and supports the basic NIP-01 protocol.
Top picks at a glance
First suggestionblastrblastr publishes Nostr events to multiple relays through a…Another optionCitrineCitrine runs a Nostr relay on Android that lets compatible…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | blastr | — | Yes | — |
| 2 | Citrine | — | Yes | Android |
| 3 | Bucket | — | Yes | — |
| 4 | arduino-nostr | — | Yes | — |
| 5 | Feature Matrix for Nostr Clients | — | Yes | — |
| 6 | comparison list of Nostr clients | — | Yes | Android, iOS, Linux |
| 7 | dart-nostr | — | Yes | — |
| 8 | Denostr | — | Yes | — |
| 9 | bcr-relay | — | Yes | — |
| 10 | broadcastr | — | Yes | — |
All cfrelay alternatives
2
Also covers open source · same kind of open-source project
Citrine runs a Nostr relay on Android that lets compatible clients send and receive events through the device.
3
Also covers open source · same kind of open-source project
Bucket provides a lightweight testing relay for Nostr client development and protocol experiments.
4
Also covers open source · same kind of open-source project
arduino-nostr connects Arduino projects to the Nostr protocol, with the repository describing Nostr as an open communication protocol.
5
Also covers open source · same kind of open-source project
This repository publishes a feature matrix showing protocol capabilities supported by Nostr clients.
6
Also covers open source · same kind of open-source project
This comparison list tracks which Nostr clients support different protocol features and NIPs.
7
Also covers open source · same kind of open-source project
dart-nostr provides a Flutter library for implementing the Nostr protocol in Dart.
8
Also covers open source · same kind of open-source project
Denostr implements a Rust-based, cloud-native Nostr relay derived from nostr-rs-relay.
9
Also covers open source · same kind of open-source project
Bitcredit event traffic is handled by bcr-relay, a specialized Nostr relay implementation written in Rust.
10
Also covers open source · same kind of open-source project
broadcastr transmits Nostr events from one relay to other relays as a stateless alternative to blastr.
11
Also covers open source · same kind of open-source project
Disgus provides embeddable website comments backed by the Nostr open protocol.
12
Also covers open source · same kind of open-source project
DDSR lists Nostr relays configured for different domain-specific purposes.
13
Also covers open source · same kind of open-source project
Coracle supports browsing multiple Nostr relays, filtering posts, and creating custom feeds.
14
Also covers open source · same kind of open-source project
atomstr converts RSS and Atom feeds into Nostr events by fetching feed content and publishing it through the protocol.
15
Also covers open source · same kind of open-source project
bloom combines a self-hosted media server with a Nostr relay for decentralized media sharing.
16
Also covers open source · same kind of open-source project
Clawstr connects AI agents through a social network built on the Nostr protocol.
17
Also covers open source · same kind of open-source project
Nostr is available from the command line through algia, a terminal application for interacting with the decentralized protocol.
18
Also covers open source · same kind of open-source project
BlazeJump provides core protocol interactions through a minimal Nostr client written in C#.
19
Also covers open source · same kind of open-source project
Bostr manages Nostr relay connections as a relay bouncer, with ongoing development focused on bostr2.
20
Also covers open source · same kind of open-source project
Fenrir-s provides a Kotlin implementation of a Nostr relay, with its source code hosted on GitHub.
21
Also covers open source · same kind of open-source project
AlgoRelay lets relay operators provide ranked or filtered event feeds through an algorithmic Nostr relay.
22
Also covers open source · same kind of open-source project
210Maxi relays Nostr events only when their content is 210 characters or fewer.
23
Also covers open source · same kind of open-source project
relay-connect provides a user interface for connecting to BitMacro relays, with a related web interface and project links.
24
Also covers open source · same kind of open-source project
Blossy supports building customized Blossom servers through a framework written for the media protocol.
No alternatives match this filter.
Alternatives to similar tools
arduino-nostr24 alternativesFeature Matrix for Nostr Clients24 alternativescomparison list of Nostr clients24 alternativesbcr-relay24 alternativesbroadcastr24 alternatives@bitmacro/relay-connect24 alternatives
What is the best alternative to cfrelay?
Based on features, tags and platforms, the closest alternatives to cfrelay are blastr, Citrine, and Bucket.
Are there open-source alternatives to cfrelay?
Yes: blastr, Citrine, Bucket, and arduino-nostr.
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