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QuickJS is a lightweight, embeddable ECMAScript runtime that executes JavaScript programs conforming to the latest specification. It is designed as a compact, standards-compliant JavaScript engine suitable for resource-constrained environments and embedded systems, available both as prebuilt binaries and as source code that can be compiled for custom integration.
The main features of quickjs-ng/quickjs are: ECMAScript Compliant Engines, Minimal Runtime Footprints, Lightweight Scripting Engines, C-Based Embedding APIs, JavaScript Engine Embedding, Cross-Platform Build Systems, Reference-Counting Garbage Collectors, Single-Pass Compilation.
Open-source alternatives to quickjs-ng/quickjs include: svaarala/duktape — Duktape is an embeddable JavaScript engine and portable scripting runtime designed for integration into C and C++… bellard/mquickjs — mQuickjs is a compact JavaScript engine designed for memory-constrained devices, such as microcontrollers, requiring… mruby/mruby — mruby is a lightweight Ruby interpreter designed to be embedded into C applications. It compiles Ruby source code into… albertlauncher/albert — Albert is a keyboard launcher that opens files, applications, and runs commands by typing search queries into a search… dop251/goja — Goja is a JavaScript engine and ECMAScript compliant interpreter implemented entirely in Go. It serves as an embedded… jerryscript-project/jerryscript — JerryScript is a lightweight, ECMAScript-compliant JavaScript engine and bytecode compiler designed for…
Duktape is an embeddable JavaScript engine and portable scripting runtime designed for integration into C and C++ applications. It functions as a lightweight ECMAScript runtime that provides a C-JavaScript bridge for exchanging data and invoking functions between native code and a script execution environment. The engine includes an ECMAScript bytecode compiler that allows for the serialization and caching of compiled functions to disk to reduce application startup time. It organizes script dependencies using a CommonJS-compliant module loader. The runtime covers a variety of capabilities in
mQuickjs is a compact JavaScript engine designed for memory-constrained devices, such as microcontrollers, requiring as little as 10 KB of RAM and 100 KB of ROM. It achieves this through a fixed-buffer memory allocation scheme that avoids system heap usage, a compacting tracing garbage collector that eliminates fragmentation, and a ROM-embedded standard library that reduces both memory footprint and startup time. The engine compiles JavaScript source into portable bytecode that can be stored in persistent memory and executed without reparsing, and it emulates IEEE 754 floating-point arithmetic
mruby is a lightweight Ruby interpreter designed to be embedded into C applications. It compiles Ruby source code into a compact, platform-independent bytecode that executes on a register-based virtual machine, and exposes a stable C API for host programs to initialize the interpreter, load bytecode, and invoke Ruby methods at runtime. The interpreter distinguishes itself through a tightly coupled parser and compiler that performs lexical analysis, syntax parsing, and bytecode generation in a single pass without constructing an intermediate AST, minimizing memory overhead. It also includes a
Albert is a keyboard launcher that opens files, applications, and runs commands by typing search queries into a search bar. It functions as a keyboard-driven workflow tool, enabling users to navigate their file system, launch installed applications, and execute shell commands without touching a mouse. The launcher processes user input through a plugin-based modular architecture, where functionality is extended by dynamically loaded C++ and Python plugins. Queries are dispatched to all enabled handlers in parallel, with results merged and ranked by a combination of match quality and historical