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This article is about common JS obfuscation tools. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

To prevent piracy or at least make it more difficult, JS developers often use obfuscation tools to confuse JS code.

The common JS confusion workers have the following types:

1 、 YUI Compressor

2 、 Google Closure Compiler

3 、 UglifyJS

4 、 JScrambler

5 、 JShaman

Let's compare the performance of these JS obfuscation tools through examples to see who has the best obfuscation effect.

Test the source code:

Function displayNoteTitle (note) {

Alert (note ['title'])

}

Var flowerNote = {}

FlowerNote ['title'] = "Flowers"

DisplayNoteTitle (flowerNote)

1. YUI Compressor confusion result:

Function displayNoteTitle (a) {alert (a.title)} var flowerNote= {}; flowerNote.title= "Flowers"; displayNoteTitle (flowerNote)

2. Google Closure Compiler confusion result:

Function displayNoteTitle (a) {alert (a.title)} var flowerNote= {title: "Flowers"}; displayNoteTitle (flowerNote)

3. UglifyJS confusion result:

Function displayNoteTitle (e) {alert (e.title)} var flowerNote= {}; flowerNote.title= "Flowers", displayNoteTitle (flowerNote)

4. JScrambler confusion result:

Var g5b = {'title': "A",' A':function (b) {flowerNote ['title'] = b;},' Xray: "V", 'oasis: (function (E) {return (function (Scophagh p) {return (function (G) {return {Kraz G};}) (function (m) {var cr é ricient Renewstics;}) (parseInt,Date, (function (n) {return (' + n) ["substring"] (1, (n) {return ('+ n) ["substring") ["length"]-1) }) ('_ getTime2'), function (NMagna) {return new n () [a] ();}), function (mdepartment R) {var d=parseInt (m ["charAt"] (R), 16) ["toString"] (2); return d ["charAt"] (d ["length"]-1);});}) ('3lrno3f7c') Function displayNoteTitle (b) {alert (b [g5b.e]);} var flowerNote=g5b.o.K ("3d3")? {}: "Flowers"; G5b [g5b.S] (g5b.Q); displayNoteTitle (flowerNote); G5b [g5b.X] (g5b.D)

5. JShaman confusion result:

Var _ 0xcb07 = ['title','Flowers']; (function (_ 0xecc7fbgravity) 0xdfa845) {var _ 0x3b37f1=function (_ 0x663ded) {while (--_ 0x663ded) {_ 0xecc7fb ['\ x70\ x75\ x73\ x73\ x68'] (_ 0xecc7fb ['\ x73\ x68\ x69\ x66\ x74'] ());}; _ 0x3b37f1 (+ + _ 0xdfa845);} (_ 0xcb07pr 0x11c)); var _ 0x7cb0=function (_ 0x108ec8c8drawing 0x507f5d) {_ 0x108ec8=_0x108ec8-0x0control var _ 0x586c42bubble _ 0xcb07[ 0x108ec8]; return _ 0x586c42}; Function displayNoteTitle (_ 0x23cbc1) {alert (_ 0x23cbc1 [_ 0x7cb0 ('0x0')]);} var flowerNote= {}; flowerNote [_ 0x7cb0 (' 0x0')] = _ 0x7cb0 ('0x1'); displayNoteTitle (flowerNote)

Test conclusion:

YUI Compressor, Google Closure Compiler, UglifyJS, these JS tools are in the same category. They mainly compress the JS source code to make the code smaller. If the goal is to make the code smaller, you can use these tools. However, the author believes that the purpose of confusion is to make the JS code unreadable. To prevent it from being analyzed and used by others, it is obvious that these tools do not achieve this very well.

The confusion of JScrambler and JShaman is quite good. From the above example, we can see that the confused JS code becomes chaotic and unreadable, which really achieves the purpose of confusion and makes the JS code unreadable. What needs to be recommended in particular is JShaman, a professional JS confusion platform in China, which can be used online without registration and can be tried for free, which is better than Jscramber. Jscramber is in English and requires registration, and it is more complex to use, so it is quite inconvenient for people to use it. Therefore, among these popular JS obfuscation tools, JShaman is the most recommended.

Thank you for reading! This is the end of this article on "what are the common JS confusion tools?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

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