Dev tools · alternatives · 2026
24 alternatives to Deepstream.io – open-source real-time server with pub/sub and data sync
A realtime server for the modern web
Deepstream.io is an open-source real-time server that enables clients and backend services to synchronize data, exchange events, and communicate through pub/sub messaging. It features interactive JSON documents that… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites, 1 of them free or with a free tier. Deepstream.io – open-source real-time server with pub/sub and data sync launched in 2016; newer entries below may have overtaken it.
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- 2MD
Hey HN, I’m an engineer at Supabase [0] and one of the creators of this demo. My team and I have been working hard to bring developers the next version of Supabase Realtime. The current version of Realtime [1] is a Change Data Capture (CDC) server for a PostgreSQL database that broadcasts changes via WebSockets to authorized subscribers. It’s written in Elixir/Phoenix. The server utilizes PostgreSQL’s logical replication functionality, which writes database changes to Write-Ahead Logging (WAL) segment files, and a replication slot, responsible for managing and retaining WAL files.…
2022 · multiplayer.dev · its alternatives →
- 3DA
Hey HN! I’ve written a bunch of WebSocket servers over the years to do simple things like state synchronization, WebRTC signaling, and notifying a client when a backend job was run. I realized that if I had a simple way to create a private, temporary, mini-redis that the client could talk to directly, it would save a lot of time. So we created DriftDB. In addition to the open source server that you can run yourself, we also provide https://jamsocket.live where you can use an instance we host on Cloudflare’s edge (~13ms round trip latency from my home in NY). You may have seen my…
2023 · driftdb.com · its alternatives →
- 4PD
PicoMQ is a Rust server for Durable Streams, built on Object Store. Cheap, URL-addressable, granular streams (create/append/read/long-poll/SSE), with Pico Protocol or Durable Streams Protocol as the facade. S3Stream is the stream storage primitive, used in AutoMQ, shipped as a Rust library. Coordination is a command log in Postgres.
Aug 2026 · picomq.com · its alternatives →
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Scalable open source pub/sub SDK with support for RPC, JWT authentication and Kubernetes — optimized for async/await
2016 · socketcluster.io · its alternatives →
- 6
Easily build real-time apps that enables user collaboration
2022 · multiplayer.dev · its alternatives →
- 7PS
Hello HN, I am Sai Srirampur, one of the Co-founders of PeerDB. (https://github.com/PeerDB-io/peerdb). We spent the past 7 months building a solid experience to replicate data from Postgres to data warehouses. Now we're expanding to queues. PeerDB Streams provides a simple and native way to replicate changes as they happen in Postgres to Queues (Kafka, Redpanda, Google PubSub, etc). We use Postgres logical decoding to enable Change Data Capture (CDC). Blog post here: https://blog.peerdb.io/peerdb-streams-simple-native-postgres.... 10-min quickstart here:…
2024 · its alternatives →
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Stream 2.0▲304API for building, scaling and personalizing feeds
2016 · getstream.io · its alternatives →
- 9
Broadcast, Presence, and Postgres Changes via WebSockets - supabase/realtime
2020 · github.com · its alternatives →
- 10RS
2015 · sse.getgin.io · its alternatives →
- 11
Horizon 1.0▲312Realtime, open-source backend for JavaScript apps
2016 · sequence.xyz · its alternatives →
- 12
Simple online database service in the cloud with NoSQL, REST API, low code javascript hooks, MongoDB support and more. Perfect for API automation, custom development, enterprise, backoffice, serverless backends, database driven websites. It provides easy collaboration and data management with secure
2016 · restdb.io · its alternatives →
- 13
The Hypermass CLI delivers live data from streams to a folder on your machine, in real time as
10d ago · docs.hypermass.io · its alternatives →
- 14
Offline-first SQL sync with Typescript and Rust cores - syncular/syncular
Aug 2026 · github.com · its alternatives →
- 15
I am happy to announce Stalwart JMAP [1], an open-source JSON Meta Application Protocol server that aims to be scalable, robust and secure. Some of its key features are: - JMAP Core, JMAP Mail and JMAP over WebSocket full compliance. - IMAP4 rev2/1 support via Stalwart IMAP, an imap-to-jmap proxy [2]. - Scalable and fault tolerant: consensus over Raft, node autodiscovery over gossip and read-only replicas. - RocksDB backend with full-text search support in 17 languages. - OAuth 2.0 authorization code and device authorization flows. - Domain Keys Identified Mail (DKIM) message signing. -…
2022 · github.com · its alternatives →
- 16FR
Deliver real-time data and low-latency WebSockets & pub/sub at the edge with Fastly. Scale chat, IoT, live apps and messaging with a self-managed infrastructure.
2017 · fanout.io · its alternatives →
- 17RT
2013 · document.ly · its alternatives →
- 18
AOO is a lightweight and flexible peer-to-peer audio streaming and messaging solution. It allows to send audio and messages in real-time and on demand between network endpoints - not only in local networks, but also over the public internet! The C/C++ library can be easily embedded in host applications or plugins. It even runs on embedded devices, such as the ESP32. In addition, the project contains a Pure Data external and a SuperCollider extension. The following article provides a high level introduction and demonstrates some use cases:…
2024 · aoo.iem.sh · its alternatives →
- 19
Stream Postgres to Apache Iceberg on S3 via logical replication, queryable over the Postgres wire protocol. - GitHub - viggy28/streambed: Stream Postgres to Apache Iceberg on S3 via logical replication, queryable over the Postgres wire protocol.
May 2026 · github.com · its alternatives →
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⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API - iamkun/dayjs
2018 · github.com · its alternatives →
- 22
Blazing fast, instant realtime GraphQL APIs on all your data with fine grained access control, also trigger webhooks on database events. - graphql-engine/community/tools/json2graphql at master · hasura/graphql-engine
2019 · github.com · its alternatives →
- 23
pubsub in <100 bytes. Contribute to hassanshaikley/pico-pubsub development by creating an account on GitHub.
2025 · github.com · its alternatives →
- 24
A flexible GraphQL client and server library that can be used to power realtime applications. - tjmehta/primus-graphql
2018 · github.com · its alternatives →
Also compare
- Deepstream.io alternatives
- Multiplayer Demo Built with Elixir alternatives
- DriftDB – an open source WebSocket backend for real-time apps alternatives
- PicoMQ – Durable Streams over HTTP, on object storage alternatives
- SocketCluster.io – flexible open-source real-time server with pub/sub alternatives
- Realtime Multiplayer by Supabase alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →