a lightweight JavaScript runtime.

Ant is a lightweight, high-performance JavaScript runtime built from scratch. It runs real npm packages, starts instantly and ships as a portable 9 MB binary.

No 140 MB download, and no toolchain to set up. Ant Silver is an independent engine, not a wrapper around V8, JSC, or SpiderMonkey.

• ant @ GitHub.

A Positively Charged JavaScript Runtime. A JavaScript Runtime for Rust.

Ion is a JavaScript runtime for integrating a JavaScript engine within a Rust program. This is useful for cases like building out a JavaScript powered plug-in system - but it can also be used directly from a stand alone executable.

Open Source Container Runtime Software.

Kata Containers is an open source project and community working to build a standard implementation of lightweight Virtual Machines (VMs) that feel and perform like containers, but provide the workload isolation and security advantages of VMs.

• Kata Containers @ GitHub.

Related contents:

• Comparing 3 Docker container runtimes - Runc, gVisor and Kata Containers @ Ákos Takács' dev.to.
• Your Container Is Not a Sandbox @ Emir Beganović.

OpenWorkers is an open-source runtime for executing JavaScript in V8 isolates. It brings the Cloudflare Workers programming model to your own infrastructure.

• OpenWorkers @ GitHub.

MicroQuickJS (aka. MQuickJS) is a JavaScript engine targetted at embedded systems. It compiles and runs JavaScript programs using as little as 10 kB of RAM. The whole engine requires about 100 kB of ROM (ARM Thumb-2 code) including the C library. The speed is comparable to QuickJS.

Actually Run Javascript Everywhere. Small and modular JavaScript runtime for desktop and mobile. Fast, Lightweight Runtime for Modular JavaScript Apps.

Small and modular JavaScript runtime for desktop and mobile. Like Node.js, it provides an asynchronous, event-driven architecture for writing applications in the lingua franca of modern software. Unlike Node.js, it makes embedding and cross-device support core use cases, aiming to run just as well on your phone as on your laptop. The result is a runtime ideal for networked, peer-to-peer applications that can run on a wide selection of hardware.

• Bare @ GitHub.

A tiny JavaScript runtime

txiki.js is a small and powerful JavaScript runtime. It targets state-of-the-art ECMAScript and aims to be WinterCG compliant.

A runtime for writing reliable asynchronous applications with Rust. Provides I/O, networking, scheduling, timers, ...

An asynchronous Rust runtime. Build reliable network applications without compromising speed. Tokio is an asynchronous runtime for the Rust programming language. It provides the building blocks needed for writing network applications. It gives the flexibility to target a wide range of systems, from large servers with dozens of cores to small embedded devices.

• Tokio @ GitHub.

Related contents:

• Episode #626: Turso is rewriting SQLite in Rust @ Changelog Interviews.
• Episode #118: NOT a swarm! @ Changelog & Friends.