JavaScript Obfuscator

What JavaScript Obfuscator is

JavaScript Obfuscator transforms JavaScript into code that is harder to understand, with the aim of protecting source code. Its standard obfuscation runs in the browser and is free without usage limits. Transformations include renaming variables, extracting and encrypting strings, adding dead code, and flattening control flow. Paid plans add REST API and npm integration for virtual-machine obfuscation, which compiles function bodies into custom bytecode run by an embedded JavaScript virtual machine. Paid plans can also process HTML containing marked inline JavaScript while keeping the surrounding HTML structure. Basic JavaScript processing occurs in the browser; VM and HTML requests are handled on the service's servers and discarded afterward. The project lists integrations for tools such as Webpack, Esbuild, Gulp, Grunt, Rollup, Netlify, Snowpack, and Vite. Output targets Node.js and evergreen desktop browsers, as well as iOS 16 and later; older browsers are supported on a best-effort basis down to ES2015 modules. TypeScript and JSX should be compiled to JavaScript first, and projects should be bundled before processing. Obfuscation is not encryption, and the documentation warns that output may run 15% to 80% slower and files may become significantly larger depending on options. Plans include Free at no cost, Pro at $19 a month, Team at $59 a month, and Business at $149 a month.