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ossrs /srs

Star28.1k

SRS is a simple, high-efficiency, real-time media server supporting RTMP, WebRTC, HLS, HTTP-FLV, HTTP-TS, SRT, MPEG-DASH, and GB28181, with codec support for H.264, H.265, AV1, VP9, AAC, Opus, and G.711.

audio c c-plus-plus streaming video hls multimedia rtmp webrtc live-streaming live media-server dash prometheus-exporter srt low-latency hevc video-streaming video-conferencing server-side

UpdatedNov 28, 2025
C++

skywind3000 /kcp

Star16.5k

⚡ KCP - A Fast and Reliable ARQ Protocol

c tunnel socket accelerator udp protocol srt low-latency kcp quic rtc ack kcptun rtt arq

UpdatedApr 22, 2025
C

questdb /questdb

Star16.4k

QuestDB is a high performance, open-source, time-series database

java sql database time-series cpp grafana postgresql simd olap market-data parquet low-latency kdb financial-analysis tsdb real-time-analytics time-series-database tick-data capital-markets questdb

UpdatedNov 29, 2025
Java

microsoft /garnet

Star11.6k

Garnet is a remote cache-store from Microsoft Research that offers strong performance (throughput and latency), scalability, storage, recovery, cluster sharding, key migration, and replication features. Garnet can work with existing Redis clients.

scalable key-value cache cluster store remote persistent concurrent low-latency cache-storage hash-table larger-than-memory

UpdatedNov 29, 2025
C#

hazelcast /hazelcast

Star6.5k

Hazelcast 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 caching distributed-systems real-time big-data hazelcast scalability distributed-computing distributed stream-processing in-memory low-latency hacktoberfest data-insights data-in-motion

UpdatedNov 28, 2025
Java

anyrtcIO-Community /anyRTC-RTMP-OpenSource

Star4.9k

RTMP 推流器，RTMP(HLS)秒开播放器，直播点播，跨平台（Win,IOS,Android）开源代码

android windows ios ffmpeg hls rtmp webrtc low-latency

UpdatedApr 22, 2025
C++

ant-media /Ant-Media-Server

Star4.6k

Ant Media Server — Ultra-low latency streaming engine with WebRTC (~0.5s), SRT, RTMP, HLS, CMAF, adaptive bitrate, transcoding & scaling

open-source streaming rtsp hls rtmp webrtc android-sdk live-streaming media-server broadcast recording low-latency video-streaming ios-sdk abr streaming-server ultra-low-latency cmaf ant-media

UpdatedNov 28, 2025
Java

miguelgrinberg /python-socketio

Sponsor

Star4.3k

Python Socket.IO server and client

python web-server websocket socket-io asyncio socketio low-latency socketio-server gevent long-polling eventlet

UpdatedNov 22, 2025
Python

emitter-io /emitter

Star4k

High performance, distributed and low latency publish-subscribe platform.

go golang mqtt networking high-performance realtime pubsub mqtt-broker emitter low-latency

UpdatedMar 13, 2025
Go

kungfu-origin /kungfu

Star3.7k

Kungfu Trader

low-latency hft ctp quantitative-trading kungfu xtp

UpdatedMay 2, 2024
C++

OpenHFT /Chronicle-Queue

Star3.6k

Micro second messaging that stores everything to disk

java performance queue low-latency chronicle persistance

UpdatedNov 28, 2025
Java

steveseguin /vdo.ninja

Sponsor

Star3.5k

VDO.Ninja is a powerful tool that lets you bring remote video feeds into OBS or other studio software via WebRTC.

video ninja live studio low-latency obs vmix vdo obsninja vdoninja vdo-ninja

UpdatedNov 24, 2025
JavaScript

Haivision /srt

Star3.4k

Secure, Reliable, Transport

c-plus-plus multimedia live-streaming transport srt low-latency

UpdatedNov 25, 2025
C++

PlatformLab /NanoLog

Star3.3k

Nanolog is an extremely performant nanosecond scale logging system for C++ that exposes a simple printf-like API.

high-performance logging printf logging-library low-latency

UpdatedMar 4, 2024
C++

chronoxor /NetCoreServer

Star3.1k

Ultra fast and low latency asynchronous socket server & client C# .NET Core library with support TCP, SSL, UDP, HTTP, HTTPS, WebSocket protocols and 10K connections problem solution

tls ssl http performance async https websocket-server websocket tcp-server socket-server tcp-client http-server low-latency udp-server https-server socket-client udp-client

UpdatedJul 15, 2025
C#

AirenSoft /OvenMediaEngine

Sponsor

Star3k

OvenMediaEngine (OME) is a Sub-Second Latency Live Streaming Server with Large-Scale and High-Definition. #WebRTC #LLHLS

streaming hls rtmp webrtc broadcasting low-latency ome streaming-server ultra-low-latency rtmp-to-webrtc cmaf sub-second-latency llhls low-latency-http ovenmediaengine low-latency-dash lldash large-scale-streaming live-streaming-server low-latency-hls

UpdatedNov 26, 2025
C++

dora-rs /dora

Star2.7k

DORA (Dataflow-Oriented Robotic Architecture) is middleware designed to streamline and simplify the creation of AI-based robotic applications. It offers low latency, composable, and distributed dataflow capabilities. Applications are modeled as directed graphs, also referred to as pipelines.

rust robotics dataflow low-latency embodied-ai

UpdatedNov 28, 2025
Rust

odygrd /quill

Star2.7k

Asynchronous Low Latency C++ Logging Library

cross-platform cpp async asynchronous high-performance logger logging cpp14 logging-library cpp17 low-latency cpp20 fmtlib log-library

UpdatedNov 20, 2025
C++

exchange-core /exchange-core

Star2.4k

Ultra-fast matching engine written in Java based on LMAX Disruptor, Eclipse Collections, Real Logic Agrona, OpenHFT, LZ4 Java, and Adaptive Radix Trees.