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JavaScript Obfuscator

github.com

From $19/mo Free plan WebAPISelf-hostedBrowser extension
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Spec score 8.2 #7 of 34 in Code Obfuscation Software

Spec sheet

Purpose
JavaScript Obfuscator transforms JavaScript into harder-to-understand code to protect source code.Read 30 Sep 2026 · github.com
Privacy
The service states that VM and HTML requests are processed on its servers and discarded after processing, while basic JavaScript obfuscation runs in the browser.Read 30 Sep 2026 · obfuscator.io
License
The open-source package is distributed under the BSD-2-Clause license.Read 30 Sep 2026 · github.com
API integration
Pro, Team, and Business plans provide REST API access and npm package integration for VM obfuscation.Read 30 Sep 2026 · obfuscator.io
Browser processing
Standard obfuscation runs entirely in the browser and is free without usage limits.Read 30 Sep 2026 · obfuscator.io
Build integrations
The project lists plugins and integrations for Webpack, Esbuild, Gulp, Grunt, Rollup, Weex, Malta, Netlify, Snowpack, and Vite.Read 30 Sep 2026 · github.com
Core features
The package provides variable renaming, string extraction and encryption, dead-code injection, control-flow flattening, and other code transformations.Read 30 Sep 2026 · github.com
HTML support
Paid plans can obfuscate HTML files containing marked inline JavaScript while preserving the surrounding HTML structure.Read 30 Sep 2026 · obfuscator.io
Performance limit
The repository warns that obfuscated code can be 15% to 80% slower and files significantly larger depending on options.Read 30 Sep 2026 · github.com
Runtime defenses
VM Self Defending detects integrity changes and hooks, while VM Debug Protection detects developer tools, breakpoints, and runtime inspection.Read 30 Sep 2026 · obfuscator.io
Runtime support
The output targets Node.js and supports evergreen desktop browsers plus iOS 16 and later, with older browsers supported only on a best-effort basis down to ES2015 modules.Read 30 Sep 2026 · obfuscator.io
Security limitation
The documentation says obfuscation is not encryption and advises against storing API keys, secrets, or credentials in frontend code.Read 30 Sep 2026 · obfuscator.io
Source requirements
TypeScript and JSX should be compiled to JavaScript before obfuscation, and projects should be bundled before processing.Read 30 Sep 2026 · obfuscator.io
VM protection
Obfuscator.io compiles function bodies into custom bytecode executed by an embedded JavaScript virtual machine.Read 30 Sep 2026 · obfuscator.io

Plans and prices

Free Free no credit card required 25 MB lifetime VM quota · 4 MB VM file size limit · Unlimited standard obfuscation Read 30 Sep 2026 · obfuscator.io
Pro $19 a month billed monthly 100 MB/month VM quota · 30 MB/day · 4 MB VM file size limit · Up to 10 files · REST and npm API Read 30 Sep 2026 · obfuscator.io
Team $59 a month billed monthly 500 MB/month shared VM quota · 150 MB/day/member · Up to 5 members · 7 MB VM file size limit Read 30 Sep 2026 · obfuscator.io
Business $149 a month billed monthly 2.5 GB/month shared VM quota · 600 MB/day/member · Up to 15 members · 10 MB VM file size limit · Priority support Read 30 Sep 2026 · obfuscator.io

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