Dev tools · alternatives · 2026
24 alternatives to Herts
Unified gRPC/HTTP realtime streaming framework for Java
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. Herts launched in 2023; newer entries below may have overtaken it.
- 1
A realtime server for the modern web
2016 · deepstream.io · its alternatives →
- 2
gRPC over WebRTC▲102gRPC over WebRTC. Contribute to jsmouret/grpc-over-webrtc development by creating an account on GitHub.
2020 · github.com · its alternatives →
- 3
A self contained OBS -> FTL -> WebRTC live streaming server. Comprised of 3 parts once configured anyone can achieve sub-second OBS to the browser livestreaming - GRVYDEV/Project-Lightspeed
2021 · github.com · its alternatives →
- 4
Asynchronous C networking library with HTTP server, WebSockets, reverse proxy, HTTP/2 gRPC client, TLS and event loop. - Softmotions/iwnet
2022 · github.com · its alternatives →
- 5
Stream 2.0▲304API for building, scaling and personalizing feeds
2016 · getstream.io · its alternatives →
- 6
grumpyrest is a Java REST server framework that does not use annotations, automatic dependency injection or reactive streams, and minimizes the use of reflection. I created this because I got fed up with annotation-mad frameworks that you cannot easily understand, step into or reason about. grumpyrest uses the type system to guide JSON mapping and validation, and (possibly virtual) threads for parallelism. It's for grumpy people who don't like what REST server programming in Java has become. I made this because I intend to use it in one of my own projects, but at the same time I want to make…
2023 · github.com · its alternatives →
- 7MW
2015 · ureq.solusipse.net · its alternatives →
- 8
2018 · gitlab.com · its alternatives →
- 9FA
Today we're announcing frpc-go, an RPC framework that's designed from the ground up to be lightweight, extensible, and extremely performant. In an apples-to-apples comparison fRPC outperforms gRPC by more than 4x, doing more than 2 million RPCs/second on a single node. Check out our docs site at https://frpc.io!
2022 · loopholelabs.io · its alternatives →
- 10DB
Background HTTP/2 provides two methods to prioritize streams (e.g. files being served). One method is called weight-based prioritizatio...
2015 · blog.kazuhooku.com · its alternatives →
- 11
Scalable open source pub/sub SDK with support for RPC, JWT authentication and Kubernetes — optimized for async/await
2016 · socketcluster.io · its alternatives →
- 12
- 13
FFmpeg wrapper providing simple, cross-platform Video I/O, GIF Creation, and Webcam Streaming in Go - AlexEidt/Vidio
2022 · github.com · its alternatives →
- 14
Hi HN, I’m a recent CS graduate. During the past few months I wrote BinaryRPC, an open-source RPC framework in modern C++20 focused on low-latency, binary WebSocket messaging. Why I built it * Wanted first-class session support, pluggable QoS levels and a simple middleware chain (global, specific, multi handler) without extra JSON/XML parsing. * Easy developer experience A quick feature list * Binary WebSocket frames – minimal overhead * Built-in session layer (login / reconnect / heartbeat) * QoS1 / QoS2 with automatic ACK & retry * Plugin system – rooms, msgpack, etc.…
2025 · github.com · its alternatives →
- 15
- 16
HyperText Transfer Protocol (HTTP) explained, with examples
2023 · http.dev · its alternatives →
- 17
List of example projects of how to use oat++ framework - oatpp-examples/Media-Stream at master · oatpp/oatpp-examples
2018 · github.com · its alternatives →
- 18PD
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 →
- 19
A modular web framework for C, inspired by kernel modules. Dynamically upload and compile C code at runtime to build REST APIs, WebSocket services, and more. Includes support for JSON (Jansson), SQLite, OpenSSL, and streaming large data efficiently. - joexbayer/c-web-modules
2024 · github.com · its alternatives →
- 20
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 →
- 21
I created cmd-stream-go, a high-performance client-server library based on the Command Pattern, where Commands are first-class citizens. Why build around Commands? As serializable objects, they can be sent over the network and persisted. They also provide a clean way to model distributed transactions through composition, and naturally support features like Undo and Redo. These qualities make them a great fit for implementing consistency patterns like Saga in distributed systems. On the performance side, sending a Command involves minimal overhead — only its type and data need to be…
2025 · github.com · its alternatives →
- 22
a sub-second, open source, self hosted stream from OBS
2021 · github.com · its alternatives →
- 23
2024 · github.com · its alternatives →
- 24
A self-hostable Wasm sandbox for JavaScript workers.
Jun 2026 · kyushu.dev · its alternatives →
Also compare
- Deepstream.io – open-source real-time server with pub/sub and data sync alternatives
- gRPC over WebRTC alternatives
- Lightspeed – subsecond, open source, self hosted stream from OBS alternatives
- Pure C Asynchronous HTTP Framework alternatives
- Stream 2.0 alternatives
- Java REST without annotations, DI nor reactive streams 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 →