High-Velocity Realtime Database for Mission-Critical Infrastructure

Unified database that combines durable storage, flexible stream processing, and vector semantic search in a single binary, eliminating the complexity of integrating multiple systems for streaming data applications.

Animated preview of a LivenDB dashboard hero visual, showing live metric counters, a self-drawing performance chart, and a streaming audit log

LivenLivenDB
Healthy
Database size
1.38 MB
Active streams
16
Active keys
707
Live throughput
Audit trail
Use Cases

See Liven in Action

World Lobby Sync1000 Hz REPLICATION
agt_Player1
agt_Player2
Boss_Enemy
Current World Tick#92841
Replication Ping0.4 ms
Why Liven

Stream. Process. Store. One Engine.

One Language for Everything

Ask historical questions. Get live answers. Same syntax. Liven uses a single, consistent query language that works the same way whether you're looking at past data or watching live events as they happen.

Historical QueriesLive SubscriptionsOne Syntax

AI Search, Built-In

Search by meaning, not just keywords. Vector embeddings are stored and searched natively. No plugins. No extra services. No complexity. Just fast similarity search that works out of the box.

Semantic SearchVector SimilarityNo Extra Services

One Binary, Infinite Flexibility

Embed it. Serve it. Shell into it. The same Liven binary adapts to how you want to work. Run it as an embedded library inside your application, launch it as a network server, or open the interactive shell for ad-hoc queries.

Embedded ModeNetwork ServerInteractive Shell

Writes You Can Trust

Durable by default. Fast by design. Every write is safely on disk before you get a response — no surprises, no data loss. Behind the scenes, Liven batches writes intelligently so you never have to choose between durability and performance.

Durable by DefaultBatch OptimizationNo Tradeoffs

Ready to Build on Liven?

Liven is free and open-source. Download the single binary, spawn your first stream, and start building in minutes.