The open-source alternative to Durable Objects

Rivet Actors provide long-lived processes with durable state, realtime, and scalability.

Quickstart • Documentation • Self-Hosting • Discord • X • Bluesky

Public-facing projects:

• Rivet Engine (you are here): Engine that powers Rivet Actors at scale
• RivetKit: Lightweight TypeScript library for building Rivet Actors — works with Redis or Rivet Engine
• Rivet Studio: Like Postman, but for Rivet Actors
• Rivet Hub: UI for Rivet Engine
• Rivet Documentation

Projects powering Rivet Engine:

• Pegboard: Actor orchestrator
• Guard: Proxy for routing traffic to Rivet Actors
• Chirp: Core workflow engine that powers Rivet

Get started with Rivet by following a quickstart guide:

• Node.js & Bun
• React

Rivet Actors provide everything you need to build fast, scalable, and real-time applications without the complexity.

• Long-Lived, Stateful Compute: Like AWS Lambda but with memory and no timeouts
• Blazing-Fast Reads & Writes: State stored on same machine as compute
• Realtime, Made Simple: Built-in WebSockets and SSE support
• Store Data Near Your Users: Deploy to the edge for low-latency access
• Infinitely Scalable: Auto-scale from zero to millions without configuration
• Fault Tolerant: Automatic error handling and recovery built-in

• AI Agent — GitHub · StackBlitz
• Chat Room — GitHub · StackBlitz
• Collab (Yjs) — GitHub · StackBlitz
• Multiplayer Game — GitHub · StackBlitz
• Local-First Sync — GitHub · StackBlitz
• Rate Limiter — GitHub · StackBlitz
• Per-User DB — GitHub · StackBlitz
• Multi-Tenant SaaS — GitHub · StackBlitz
• Stream Processing — GitHub · StackBlitz

The ability to self-host Rivet Engine is currently currently a work in progress.

Please see the self-hosting guide for RivetKit.

For enterprise use cases, get in touch about using Rivet Cloud or self-hosting.

Join thousands of developers building with Rivet Actors today:

• Discord - Chat with the community
• X/Twitter - Follow for updates
• Bluesky - Follow for updates
• GitHub Discussions - Ask questions and share ideas
• GitHub Issues - Report bugs and request features
• Talk to an engineer - Discuss your technical needs, current stack, and how Rivet can help with your infrastructure challenges

• Rust
• FoundationDB: State
• NATS: Pub/sub
• Valkey: Caching
• ClickHouse: Monitoring

Apache 2.0