crates.io · Maven · npm +1100Exceptionalhealth index

risingwavelabs/risingwaveEvent streaming platform for agentic AI. Continuously ingest, transform, and serve event streams in real time, at scale.
Rust★ 9,342Sep 24, 2026
PyPI99Exceptionalhealth index

ag2ai/faststreamAsynchronous Python framework for event-driven services. A thin client for Kafka, RabbitMQ, NATS, Redis and MQTT with full access to native broker features, plus AsyncAPI docs, in-memory tests and observability out of the box.
Python★ 5,343↓ 1.2M/moSep 17, 2026
crates.io · npm · PyPI98Exceptionalhealth index

MaterializeInc/materializeThe live data layer for apps and AI agents. Create up-to-the-second views into your business, just using SQL
Rust · Python★ 6,380↓ 2/moOct 2, 2026
crates.io · npm98Exceptionalhealth index
Rust · CUE★ 22.6K↓ 73/moSep 16, 2026
—97Exceptionalhealth index

fluent/fluent-bitFast and Lightweight Logs, Metrics and Traces processor for Linux, BSD, OSX and Windows
C★ 8,129Sep 29, 2026
npm · Go · crates.io96Exceptionalhealth index

numaproj/numaflowKubernetes-native platform to run massively parallel data/streaming jobs
Rust · Go · TypeScript★ 2,835↓ 8/moOct 21, 2026
PyPI · crates.io96Exceptionalhealth index
Python★ 6,099↓ 176.9K/moSep 17, 2026
PyPI96Exceptionalhealth index
Python★ 1,572↓ 70.4K/moSep 18, 2026
Go95Exceptionalhealth index
Go★ 8,737Aug 28, 2026
Go · crates.io · npm94Exceptionalhealth index

PeerDB-io/peerdbFast, Simple and a cost effective tool to replicate data from Postgres to Data Warehouses, Queues and Storage
Go · TypeScript★ 3,271Sep 11, 2026
PyPI94Exceptionalhealth index

Point72/cspcsp is a high performance reactive stream processing library, written in C++ and Python
Python · C++★ 440Sep 11, 2026
PyPI · crates.io94Exceptionalhealth index

getsentry/arroyoA library to build streaming applications that consume from and produce to Kafka.
Python · Rust★ 62↓ 84.4K/moSep 9, 2026
Maven94Exceptionalhealth index

questdb/questdbQuestDB is a high performance, open-source, time-series database
Java★ 17.3KSep 16, 2026
Maven · npm92Excellenthealth index
Java★ 1,069Sep 13, 2026
Maven91Excellenthealth index

hazelcast/hazelcastHazelcast is a unified real-time data platform combining stream processing with a fast data store, allowing customers to act instantly on data-in-motion for real-time insights.
Java★ 6,622Oct 20, 2026
PyPI · crates.io90Excellenthealth index

pathwaycom/pathwayPython ETL framework for stream processing, real-time analytics, LLM pipelines, and RAG.
Python · Rust★ 62.3K↓ 7,236/moSep 20, 2026
crates.io89Excellenthealth index
Rust★ 562↓ 7,429/moSep 10, 2026
npm88Excellenthealth index
TypeScript · JavaScript★ 152↓ 25.5K/moAug 28, 2026
npm · PyPI87Excellenthealth index
C++★ 37KSep 16, 2026
PyPI87Excellenthealth index

nerevu/rikoA Python stream processing engine modeled after Yahoo! Pipes
Python★ 1,607Sep 18, 2026
Packagist87Excellenthealth index

sanmai/pipelineBuild streaming pipelines in PHP. The missing pipe operator. General-purpose collections pipeline. Since 2017.
PHP★ 75↓ 1.5M/moSep 13, 2026
crates.io · PyPI86Excellenthealth index
Rust★ 56↓ 2,024/moOct 8, 2026
PyPI84Excellenthealth index

openfun/ralph:gear: Ralph, the ultimate Learning Record Store (and more!) for your learning analytics
Python★ 51↓ 2,616/moOct 13, 2026
crates.io84Excellenthealth index

rxRust/rxRustZero-cost & Type-safe Reactive Extensions for Rust. Supports both high-performance single-threaded (Local) and thread-safe (Shared) contexts. WASM & Tokio ready.
Rust★ 1,119↓ 3,759/moOct 14, 2026

OCHA-DAP/hdx-python-utilitiesA range of helpful utilities for Python developers including streaming tabular data, date parsing, JSON and YAML handling, dictionary and list utilities
Python★ 10↓ 62.6K/moOct 13, 2026
crates.io78Goodhealth index
Rust★ 370↓ 48.4K/moSep 17, 2026
C#★ 178Sep 10, 2026
Go · npm77Goodhealth index
Go★ 11Sep 20, 2026

eschizoid/kpipeComposable Kafka consumer library for building modular, testable JVM data pipelines.
Java★ 57Sep 13, 2026

ClassMesh/classmeshConfidence-gated classification cascade in Go: deterministic rules first, models next, expensive calls only for what is left
Go★ 0Sep 10, 2026