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jetpack.js is an extremely fast js bundler and minifier.

jetpack.js a well designed tool. It's modulize into parser and bundler. The parser can be used as a library independently.

• Features
  • Parser
  • Bundler
• Installation
• Usage
• Use the parser as a library
  • Example
• Performance
• Architecture
• Platform

• Can be used standalone
• Implemented in C++ with excellent performance
• Full support for ECMAScript 2017(ECMA-262 8th Edition)
• JSON output of sensible syntax tree format as standardized by ESTree project
• Experimental support for JSX, a syntax extension for React
• Syntax node location (index-based and line-column)
• Friendly error message

• Module resolution.
• Bundle a ES project into a single file.
• Scope hoisting.
• Constant folding.
• Minify the code.
• Sourcemap generation

Download the binary from the release page.

Usage:

jetpack-cli --help

npm install -g jetpp

Use command line to bundle a js module.

jetpp main.js --out bundle.js

Help command:

$ jetpp --help

Jetpack command line
Usage:
  Jetpack [OPTION...] positional parameters

      --tolerant            tolerant parsing error
      --jsx                 support jsx syntax
      --library             bundle as library, do not bundle node_modules
      --help                produce help message
      --analyze-module arg  analyze a module and print result
      --no-trace            do not trace ref file when analyze module
      --minify              minify the code
      --out arg             output filename of bundle
      --sourcemap           generate sourcemaps

jetpack.js is built with CMake, so it can be easily integrated to your project.

add_subdirectory(esparser)
target_include_directories(${PROJECT_NAME} ./esparser/src)
target_link_libraries(${PROJECT_NAME} PUBLIC esparser)

I do the same benchmark provided by esbuild.

My main benchmark approximates a large codebase by duplicating the three.js library 10 times and building a single bundle from scratch, without any caches. For this benchmark, esbuild is 10-100x faster than the other JavaScript bundlers I tested (Webpack, Rollup, Parcel, and FuseBox). The benchmark can be run with make bench-three.

The tests were done on a 6-core 2018 MacBook Pro with 16GB of RAM (similar to esbuild).

The code are well commented, please read the code.

jetpack.js supports all popular system including:

• macOS x64/arm64
• Windows 64bit
• Linux 64bit

• jemalloc 5.2.1
• cxxopts
• fmt
• nlohmann_json
• robin-hood-hashing 3.11.1
• xxHash