nowfound

Dev tools · alternatives · 2026

24 alternatives to Fluvio – Distributed stream processing system written in Rust and WASM

🦀 event stream processing for developers to collect and transform data in motion to power responsive data intensive applications. - fluvio-community/fluvio

Fluvio is a distributed stream processing system built with Rust and WebAssembly. It's designed for developers who need to process data streams across multiple systems. The system emphasizes performance and reliability… 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. Fluvio – Distributed stream processing system written in Rust and WASM launched in 2023; newer entries below may have overtaken it.

  1. 1

    Comparing throughput and latency between Apache Kafka and Fluvio

    2025 · infinyon.com · its alternatives →

  2. 2
  3. 3NA
  4. 4

    A versatile web framework and library for building client-side and server-side web applications - ivanceras/sauron

    2019 · github.com · its alternatives →

  5. 5

    Actor runtime and distributed systems framework for Rust - LeonHartley/Coerce-rs

    2019 · github.com · its alternatives →

  6. 6

    tl;dr we built an embeddable stream processing engine in Rust using apache DataFusion, check us out at https://github.com/probably-nothing-labs/denormalized Hey HN, We’d like to showcase a very early version of our embeddable stream processing engine called Denormalized. The rise of DuckDB has abundantly made it clear that even for many workloads of Terabyte scale, a single node system outshines the distributed query engines of previous generation such as Spark, Snowflake etc in terms of both performance and cost. Now a lot of workloads DuckDB is used for were normally…

    2024 · github.com · its alternatives →

  7. 7

    Truly cross platform, truly native. multiple backend GUI for rust - ivanceras/sauron-native

    2019 · github.com · its alternatives →

  8. 8

    I've just released an early version off my project I've been working on for a few months now and would love some feedback. https://github.com/fourlexboehm/faasta I was surprised there isn't yet an open/source and standards compliant way to host wasi-http functions in a way that takes advantages of WASM, a multi tenanted application. If you're not familiar with wasi, Compared to something like AWS Lambda, this approach is much more efficient as a single process can serve 1000s of function invocations concurrently and asynchronously, instead requiring an entire VM.…

    2025 · github.com · its alternatives →

  9. 9OA

    A lightweight engine for durable execution / deterministic workflows I built with Rust, wasmtime and the WASM Component Model. Its main use is running reliable, long-running workflows that can automatically resume after failures. Looking for feedback on the approach and potential use cases!

    2025 · obeli.sk · its alternatives →

  10. 10

    Copper is an operating system for robots - build, run, and replay your entire robot deterministically. - Home · copper-project/copper-rs Wiki

    2024 · github.com · its alternatives →

  11. 11PD

    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 →

  12. 12

    Hey HN, we’re Robert, Din and Temirlan from Laminar (https://www.lmnr.ai), an open-source observability and analytics platform for complex LLM apps. It’s designed to be fast, reliable, and scalable. The stack is RabbitMQ for message queues, Postgres for storage, Clickhouse for analytics, Qdrant for semantic search - all powered by Rust. How is Laminar different from the swarm of other “LLM observability” platforms? On the observability part, we’re focused on handling full execution traces, not just LLM calls. We built a Rust ingestor for OpenTelemetry (Otel) spans with GenAI…

    2024 · github.com · its alternatives →

  13. 13

    Open source security data lake for threat hunting, detection & response, and cybersecurity analytics at petabyte scale on AWS - matanolabs/matano

    2022 · github.com · its alternatives →

  14. 14

    Actor runtime and distributed systems framework for Rust - LeonHartley/Coerce-rs

    2023 · github.com · its alternatives →

  15. 15

    High-performance serverless functions for Rust & WebAssembly

    2020 · secondstate.io · its alternatives →

  16. 16

    High performance secure & portable Rust functions in Node.js

    2020 · secondstate.io · its alternatives →

  17. 17

    Using wasm-bindgen, and the tween-rs crate

    2024 · rustween.mtassoumt.uk · its alternatives →

  18. 18

    Earlier this year, we released our open-source game engine [0] built with Rust, WebAssembly, and WebGPU. Today, we’re happy to announce the Ambient platform, which brings web deployment, server hosting, and more to the runtime. With Ambient, you can make a game, deploy it to the browser in one command, share your URL and instantly play with others, no downloads or installs needed. Our WASM use is innovative; it is being used as both a sandboxed runtime for user code, and as a way to run the entire Ambient runtime in the browser. This, paired with our ECS data model, enables a highly modular…

    2023 · ambient.run · its alternatives →

  19. 19

    Local-first collaboration SDK for React, Vue, and Svelte. Batteries-included: Rich text, undo/redo, cursors, and presence. - Dancode-188/synckit

    Nov 2025 · github.com · its alternatives →

  20. 20

    Godot-based Rust multi-PTY emulator desktop application - godot-pty/gpty

    Sep 2026 · github.com · its alternatives →

  21. 21

    A bittorrent client in Rust. Contribute to ikatson/rqbit development by creating an account on GitHub.

    2023 · github.com · its alternatives →

  22. 22

    YC (S26) | Open Computer History | Record your screen continuously locally and provide context to your agents (Claude, Codex, Openclaw, Hermes, Runner...) - screenpipe/screenpipe

    2024 · github.com · its alternatives →

  23. 23

    The versioned, forkable, syncable database. Contribute to attic-labs/noms development by creating an account on GitHub.

    2016 · github.com · its alternatives →

  24. 24
    Tantivy▲68

    A full-text, horse-speed search engine library in Rust

    2022 · github.com · its alternatives →

Also compare

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 →