JavaScript Obfuscator

6.8easy start · #10 of 33
in Code Obfuscation Software

Free to practise onyes
Free trialnot on record
Well documentedyes
Runs where you worknot on record

Runs on api, Browser, self-hosted, Web. Paid plans from $19/mo.

JavaScript Obfuscator is ranked #10 of 33 in code obfuscation software on The Geeks Club. It runs on API, Browser extension, Self-hosted, Web. There is a free plan. Paid plans start at $19/mo.

JavaScript Obfuscator plans and pricing

All plans

Free Free no credit card required 25 MB lifetime VM quota · 4 MB VM file size limit · Unlimited standard obfuscation obfuscator.io · 30 Sept 2026

Pro $19/mo billed monthly 100 MB/month VM quota · 30 MB/day · 4 MB VM file size limit · Up to 10 files · REST and npm API obfuscator.io · 30 Sept 2026

Team $59/mo billed monthly 500 MB/month shared VM quota · 150 MB/day/member · Up to 5 members · 7 MB VM file size limit obfuscator.io · 30 Sept 2026

Business $149/mo 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 obfuscator.io · 30 Sept 2026

Compared on code obfuscation software

Free plan: Yes
Supported targets: browser, browser-no-eval, node
Anti-tamper controls: Yes
Control-flow obfuscation: Yes
String encryption: Yes
Deployment model: self_hosted
Build integration: cli

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The record

Purpose: JavaScript Obfuscator transforms JavaScript into harder-to-understand code to protect source code.
VM protection: Obfuscator.io compiles function bodies into custom bytecode executed by an embedded JavaScript virtual machine.
Core features: The package provides variable renaming, string extraction and encryption, dead-code injection, control-flow flattening, and other code transformations.
Browser processing: Standard obfuscation runs entirely in the browser and is free without usage limits.
API integration: Pro, Team, and Business plans provide REST API access and npm package integration for VM obfuscation.
Build integrations: The project lists plugins and integrations for Webpack, Esbuild, Gulp, Grunt, Rollup, Weex, Malta, Netlify, Snowpack, and Vite.
HTML support: Paid plans can obfuscate HTML files containing marked inline JavaScript while preserving the surrounding HTML structure.
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.
Security limitation: The documentation says obfuscation is not encryption and advises against storing API keys, secrets, or credentials in frontend code.
Runtime defenses: VM Self Defending detects integrity changes and hooks, while VM Debug Protection detects developer tools, breakpoints, and runtime inspection.
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.
Source requirements: TypeScript and JSX should be compiled to JavaScript before obfuscation, and projects should be bundled before processing.
License: The open-source package is distributed under the BSD-2-Clause license.
Performance limit: The repository warns that obfuscated code can be 15% to 80% slower and files significantly larger depending on options.
Price from: $19/mo

Where it ranks on The Geeks Club

Best Code Obfuscation Software in 2026#10 of 33

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Sources

github.com/javascript-obfuscator/javascript-obfusc· checked 30 Sept 2026
obfuscator.io· checked 30 Sept 2026
obfuscator.io/pricing· checked 30 Sept 2026
obfuscator.io/docs/api· checked 30 Sept 2026
obfuscator.io/docs/recipes/html-obfuscation· checked 30 Sept 2026