Restate – Low-latency durable workflows for JavaScript/Java, in Rust

In plain words

Restate is an open-source system for building durable workflows using code in JavaScript, Java, or Kotlin, with a lightweight runtime written in Rust. It runs as a single self-contained binary with no external dependencies beyond disk storage, making it suitable for both laptops and servers. The platform implements durable execution for workflows and RPC handlers, allowing developers to write reliable distributed applications that can survive failures and resume from where they left off.

written from the facts on this page · September 2026

From the sources

Restate is a low-latency application runtime with durable execution, keyed state, queues, RPC, timers, flow control, and operational control in one binary.

Flexible building blocks that compose into agents, workflows, and microservices. Low-latency durable execution, driven by a fast distributed log. Going beyond workflows: low latency, easy to integrate, ships as a single binary. All business-critical backend workflows are driven by Restate, by mapping their DSL onto Restate's primitives. Restate powers their treasury workflows with multi-regional strong consistency. Built by the original creators of Apache Flink and engineers behind Meta’s planet-scale event infrastructure . View execution journals and cancel, kill, restart, or pause any execution. Restate is not layered on top of a database. It is a purpose-built system, where all pieces…from restate.dev

In the maker’s words, at launch

We'd love to share our work with you: Restate, a system for workflows-as-code (durable execution). With SDKs in JS/Java/Kotlin and a lightweight runtime built in Rust/Tokio. https://github.com/restatedev/ https://restate.dev/ It is free and open, SDKs are…

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