What is obfuscator javascript

Carlos Delgado January 27, 9. Discover why and when should you obfuscate your JavaScript code. Share this article.

Carlos Delgado Author. Add Your Comment. Become a more social person. Related Articles. May 06, What is the difference between call and apply property when invoking a function May 17, 2. What is the difference between String and string keyword in c May 07, 4. October 13, 3. February 27, 3. It is the most effective obfuscation and optimization tool for JavaScript we've come across to date. Thank you! Javascript Obfuscator does exactly what it says, without fuss and with a very easy configuration and implementation process.

It is robust, quick, efficient and wonderfully simple to use. We are delighted with it! Keep it up! To get the most out of JavaScript Obfuscator, you can download and install the full-feature desktop software on Windows computers. JavaScript Obfuscator Desktop provides all the features you need to scramble and protect JavaScript code. Obfuscating JavaScript files manually one by one can be an irksome and time consuming process. GUI interface tool can help you out in doing a tough and time consuming process in just a few clicks.

What Is Javascript Obfuscator? Online Obfuscator. JavaScript Obfuscation. Leading Protection. Sets base url to the source map import url when sourceMapMode: 'separate'. Allows to control sources and sourcesContent fields of the source map:.

Splits literal strings into chunks with length of splitStringsChunkLength option value. Removes string literals and place them in a special array. Encode all string literals of the stringArray using base64 or rc4 and inserts a special code that used to decode it back at runtime. Each stringArray value will be encoded by the randomly picked encoding from the passed list. This makes possible to use multiple encodings. For example with the following option values some stringArray value won't be encoded, and some values will be encoded with base64 and rc4 encoding:.

Each stringArray call index will be transformed by the randomly picked type from the passed list. This makes possible to use multiple types. Before 2. This makes some manual deobfuscation slightly harder but it allows easy detection of these calls by automatic deobfuscators. The new hexadecimal-number type approaches to make harder auto-detect of string array call patterns in the code. Shift the stringArray array by a fixed and random generated at the code obfuscation places.

This makes it harder to match the order of the removed strings to their original place. Sets the count of wrappers for the string array inside each root or function scope. The actual count of wrappers inside each scope is limited by a count of literal nodes within this scope. Allows to control the maximum number of string array wrappers parameters.

Default and minimum value is 2. Recommended value between 2 and 5. Allows to select a type of the wrappers that are appending by the stringArrayWrappersCount option. Highly recommended to use function wrappers for higher obfuscation when a performance loss doesn't have a high impact on an obfuscated application.

You can use this setting to adjust the probability from 0 to 1 that a string literal will be inserted into the stringArray.

This setting is especially useful for large code size because it repeatedly calls to the string array and can slow down your code. Currently output code for browser and node targets is identical, but some browser-specific options are not allowed to use with node target. Output code for browser-no-eval target is not using eval. Unicode escape sequence increases code size greatly and strings easily can be reverted to their original view. Recommended to enable this option only for small source code.

Try to run npm link javascript-obfuscator command or install it globally with npm i -g javascript-obfuscator. BigInt obfuscation works correctly only in environments that support BigInt values. See ESTree spec. Try renamePropertiesMode: 'safe' option, if it still doesn't work, just disable this option. Support us with a monthly donation and help us continue our activities.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:. Skip to content. Star 7. A powerful obfuscator for JavaScript and Node. BSDClause License. Branches Tags. Could not load branches. Could not load tags. Latest commit. Git stats 2, commits. Failed to load latest commit information.

Removed test and lint scripts from ci runs. Aug 5, Fixed pre-commit hook. Added base web version. Apr 19, Added new obfuscated code example. Feb 23, New logo 2. Sep 18,