Low-latency

Bidirectional and low-latency communication for every platform

SRS is a simple, high-performance, AI-driven 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.

The most customisable and low-latency cross platform/shell prompt renderer

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

:zap: KCP - A Fast and Reliable ARQ Protocol

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.

Open-source, low-latency key/value engine built on Valkey with query subscriptions and hierarchical storage tiers.

A robust, efficient, low-latency speech-to-text library with advanced voice activity detection, wake word activation and instant transcription.

Mumble is an open-source, low-latency, high quality voice chat software.

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.

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

Low-latency machine code generation

Python Socket.IO server and client