Coracle supports browsing multiple Nostr relays, filtering posts, and creating custom feeds.
The Best atomstr Alternatives in 2026
Looking for something like atomstr? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 21 are open source.
atomstr converts RSS and Atom feeds into Nostr events by fetching feed content and publishing it through the protocol.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Coracle | — | Yes | Android |
| 2 | 210Maxi | — | Yes | — |
| 3 | 0n4t3.github.io/n_cord/ | — | Not stated | Web |
| 4 | blogo | — | Yes | — |
| 5 | Denostr | — | Yes | — |
| 6 | awesome-nostr-japan | — | Yes | — |
| 7 | Bostr | — | Yes | — |
| 8 | Fenrir-s | — | Yes | — |
| 9 | Fevela | — | Yes | — |
| 10 | dabena.github.io/Brezn/ | — | Not stated | Web |
All atomstr alternatives
210Maxi relays Nostr events only when their content is 210 characters or fewer.
0n4t3.github.io/n_cord/
0n4t3.github.io/n_cordn_cord displays a global Nostr feed and lets users connect relays, follow messages, and post updates.
The lightweight blog engine blogo backs up its content to Nostr, and its project recommends running version 3.
Denostr implements a Rust-based, cloud-native Nostr relay derived from nostr-rs-relay.
This curated Japanese Nostr directory lists software, web services, clients, and related community projects.
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.
Fevela presents Nostr posts in a newsreader-style interface designed to help users manage attention and time.
dabena.github.io/Brezn/
dabena.github.io/BreznBrezn is a Nostr progressive web app that shows posts by location, using geohashes to reduce location precision.
blastr publishes Nostr events to multiple relays through a proxy relay running on Cloudflare Workers.
This repository publishes a feature matrix showing protocol capabilities supported by Nostr clients.
AlgoRelay lets relay operators provide ranked or filtered event feeds through an algorithmic Nostr relay.
code
github.com/SPcitydog/ogits-nodeO_GITS lets users host an Alpha node for a decentralized digital organism on their own machine.
Nostr badge events of kind 8 can be created and issued with Badger, a client for the protocol.
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.
Citrine runs a Nostr relay on Android that lets compatible clients send and receive events through the device.
bark signs Nostr events through a NIP-07 interface backed by NIP-46 remote signing.
cfrelay runs a Nostr relay on Cloudflare Workers and supports the basic NIP-01 protocol.
arduino-nostr connects Arduino projects to the Nostr protocol, with the repository describing Nostr as an open communication protocol.
This comparison list tracks which Nostr clients support different protocol features and NIPs.
dart-nostr provides a Flutter library for implementing the Nostr protocol in Dart.
Alternatives to similar tools
What is the best alternative to atomstr?
Are there open-source alternatives to atomstr?
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























