KeylessUniversal
Lua Script•390 lines (16647 chars)
local Settings = {
IncludeNils = false -- If true, functions that's names cannot be obtained (Most likely empty functions) will also be included in the decompiled code.
}
local HTTPs = game:GetService('HttpService');
function encode(a)
return HTTPs:JSONEncode(a)
end
function decode(a)
return HTTPs:JSONDecode(a)
end
if not isfolder("SimpleDecompile") then
makefolder("SimpleDecompile")
writefile("SimpleDecompile/config.json", encode(Settings))
elseif isfolder("SimpleDecompile") and isfile("SimpleDecompile/config.json") then
Settings = decode(readfile("SimpleDecompile/config.json"))
end
function startswith(str, thing)
if str:sub(1, #thing) == thing then
return true
else
return false
end
end
function pKey(key)
if startswith(tostring(key), "__") then
return tostring(key)
end
if type(key) == "number" then
return "[" .. tostring(key) .. "]"
else
return '["' .. tostring(key) .. '"]'
end
end
function pKey1(key, val)
if type(key) == "number" then
if typeof(val):lower() == "boolean" then
return "bool_" .. tostring(key)
else
return typeof(val):lower() .. "_" .. tostring(key)
end
elseif type(key) == 'string' then
return val
end
end
function isStrFunc(str)
for i, v in getrenv() do
if tostring(i) == str and type(v) == "function" then return true end
end
return false
end
function gcsenv(Scr)
local funcs = {}
for i, v in next, getgc(true) do
if (type(v) == "function" and islclosure(v) and getfenv(v).script == Scr) then
table.insert(funcs, v)
end
end
return funcs
end
function GetMetaMethods(regularTable)
local meta = getmetatable(regularTable)
if not meta then
return {}
end
setreadonly(meta, false)
local mms = {}
for i, v in meta do
if startswith(tostring(i), "__") then
table.insert(mms, {Name = i, Value = v})
end
end
return mms
end
function GetFullName(instance)
local p = instance
local lo = {}
while (p ~= game and p.Parent ~= nil) do
table.insert(lo, p)
p = p.Parent
end
local fullName
if #lo == 0 then
return "nil -- Instance parented to nil"
end
if lo[#lo].ClassName ~= "Workspace" then
fullName = 'game:GetService("' .. lo[#lo].ClassName .. '")'
else
fullName = "workspace"
end
for i = #lo - 1, 1, -1 do
fullName = fullName .. ':FindFirstChild("' .. lo[i].Name .. '")'
end
return fullName
end
function processTableDescendants(tbl, indent, tblname)
indent = indent or 0
tblname = tblname or "{}"
local metacount = 1
local result = ""
local count = 1
for key, value in pairs(tbl) do
if type(value) == "table" and not startswith(tostring(key), "__") then
result = result .. string.rep(" ", indent) .. pKey(key) .. " = {"
if #value == 0 then
result = result .. "}"
else
result = result .. "\n" .. processTableDescendants(value, indent + 1)
result = result .. string.rep(" ", indent) .. "}\n"
end
if getrawmetatable(value) ~= nil then
result =
result ..
string.rep(" ", indent) ..
"local meta" .. tostring(metacount) .. " = setmetatable(" .. tostring(tblname) .. ", {})\n"
metacount = metacount + 1
for _, v in GetMetaMethods(value) do
result =
result ..
string.rep(" ", indent) .. "meta" .. tostring(metacount) .. "." .. tostring(v.Name) .. " = "
if typeof(v.Value) == "table" then
result =
result ..
string.rep(" ", indent) ..
"{" ..
processTableDescendants(v.Value, indent + 1) ..
"\n" .. string.rep(" ", indent) .. "}"
elseif typeof(v.Value) == "function" then
result = result .. string.rep(" ", indent) .. "function() --[[ Function Source ]] end"
else
result = result .. string.rep(" ", indent) .. tostring(v.Value)
end
result = result .. ";\n"
end
end
elseif type(value) == "function" and not startswith(tostring(key), "__") then
result =
result ..
string.rep(" ", indent) ..
pKey(key) .. " = function() --[[Function Source]] end" .. string.rep(" ", indent + 1)
elseif typeof(value):lower() == "vector3" and not startswith(tostring(key), "__") then
result =
result ..
string.rep(" ", indent) ..
pKey(key) ..
" = Vector3.new(" ..
tostring(value.X) .. ", " .. tostring(value.Y) .. ", " .. tostring(value.Z) .. ");\n"
elseif typeof(value):lower() == "vector2" and not startswith(tostring(key), "__") then
result =
result ..
string.rep(" ", indent) ..
pKey(key) .. " = Vector2.new(" .. tostring(value.X) .. ", " .. tostring(value.Y) .. ");\n"
elseif typeof(value):lower() == "udim" and not startswith(tostring(key), "__") then
result =
result ..
string.rep(" ", indent) ..
pKey(key) .. " = UDim.new(" .. tostring(value.Scale) .. ", " .. tostring(value.Offset) .. ");\n"
elseif typeof(value):lower() == "udim2" and not startswith(tostring(key), "__") then
result =
result ..
string.rep(" ", indent) ..
pKey(key) ..
" = UDim2.new(" ..
tostring(value.X.Scale) ..
", " ..
tostring(value.X.Offset) ..
", " .. tostring(value.Y.Scale) .. ", " .. tostring(value.Y.Offset) .. ");\n"
elseif typeof(value):lower() == "instance" and not startswith(tostring(key), "__") then
result = result .. string.rep(" ", indent) .. pKey(key) .. " = " .. GetFullName(value) .. ";\n"
elseif typeof(value) == "string" and not startswith(tostring(key), "__") then
result = result .. string.rep(" ", indent) .. pKey(key) .. ' = "' .. tostring(value) .. '";\n'
elseif typeof(value) == "number" and not startswith(tostring(key), "__") then
result = result .. string.rep(" ", indent) .. pKey(key) .. " = " .. tostring(value) .. ";\n"
elseif typeof(value) == "nil" and not startswith(tostring(key), "__") then -- nil value
result = result .. string.rep(" ", indent) .. pKey(key) .. " = " .. tostring(value) .. ";\n"
elseif typeof(value):lower() == "cframe" and not startswith(tostring(key), "__") then -- Enum/Other value
result = result .. string.rep(" ", indent) .. pKey(key) .. " = CFrame.new(" .. tostring(value) .. ");\n"
elseif typeof(value):lower() == "color3" and not startswith(tostring(key), "__") then
result =
result ..
string.rep(" ", indent) ..
pKey(key) ..
" = Color3.fromRGB(" ..
tostring(value.R * 255) ..
", " .. tostring(value.G * 255) .. ", " .. tostring(value.B * 255) .. ");\n"
end
end
if #tbl == 0 then
return result
else
return "\n" .. result
end
end
function DecompileFunction(func, excludename, indent, customname)
if not indent then
indent = 1
end
local metatablecount = 1
local inf, String = debug.getinfo(func), "function " .. tostring(debug.getinfo(func).name) .. "("
if excludename then
String = "function("
end
if customname then
String = "function " .. customname .. "("
end
if tostring(inf.is_vararg) == "1" then
String = String .. "...\n"
else
local ab={"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"}
if inf.numparams > 0 then
local paramcount = inf.numparams
for i = 1, paramcount do
String = String .. ab[i]
if i < paramcount then
String = String .. ", "
end
end
if paramcount > #ab then
String = String .. ", ..."
end
end
String = String .. ")"
StringHolder = String
String = ""
UString = ""
for i, v in getupvalues(func) do
if typeof(v):lower() == "vector2" then
UString = UString .. ("\n%s = Vector2.new(%d, %d)"):format(pKey1(i, v), v.X, v.Y)
elseif typeof(v):lower() == "vector3" then
UString = UString .. ("\n%s = Vector3.new(%d, %d, %d)"):format(pKey1(i, v), v.X, v.Y, v.Z)
elseif typeof(v):lower() == "udim" then
UString = UString .. ("\n%s = UDim.new(%d, %d)"):format(pKey1(i, v), v.Scale, v.Offset)
elseif typeof(v):lower() == "udim2" then
UString =
UString ..
("\n%s = UDim2.new(%d, %d, %d, %d)"):format(
pKey1(i, v),
v.X.Scale,
v.X.Offset,
v.Y.Scale,
v.Y.Offset
)
elseif typeof(v):lower() == "number" then
if os.time() - v < 1 then
UString = UString .. ("\n%s = %s --[[ Possibly os.time() ]]"):format(pKey1(i, v), tostring(v))
elseif tick() - v < 1 then
UString = UString .. ("\n%s = %s -- [[ Possibly tick() ]]"):format(pKey1(i, v), tostring(v))
else
-- Reasons not to add userid checks: False alarms (Really rare, But why would they it in a modulescript or a localscript.)
UString = UString .. ("\n%s = %s"):format(pKey1(i, v), tostring(v))
end
elseif typeof(v):lower() == "instance" then
UString = UString .. ("\n%s = %s"):format(v.Name:gsub(" ", "_"),GetFullName(v))
elseif typeof(v):lower() == "color3" then
UString = UString .. ("\n%s = Color3.fromRGB(%d, %d, %d"):format(pKey1(i, v), v.R * 255, v.G * 255, v.B * 255)
elseif typeof(v):lower() == "string" then
UString = UString .. ('\n%s = "%s"'):format(pKey1(i, v), v)
elseif typeof(v):lower() == "boolean" then
UString = UString .. ("\n%s = %s"):format(pKey1(i, v), tostring(v))
elseif typeof(v):lower() == "cframe" then
UString = UString .. ("\n%s = CFrame.new(%s)"):format(pKey1(i, v), tostring(v))
end
end
end
if #getupvalues(func) == 0 then
String = StringHolder
else
String = UString .. "\n" .. StringHolder or ''
end
local consts = string.rep(" ", indent) .. "--[[ Detected roblox functions list"
local Aconsts = ""
local UnknownProtos = 0
for i, v in getconstants(func) do
if isStrFunc(v) then
consts = consts .. "\n" .. string.rep(" ", indent) ..v.."()"
else
Aconsts = Aconsts .. "\n" .. string.rep(" ", indent) .. "local c_" .. tostring(i) .. " = '" .. tostring(v) .. "'"
end
end
consts = consts .. "\n" .. string.rep(" ", indent) .. "]]\n"
for i, v in getprotos(func) do
if debug.getinfo(v).name == nil then
UnknownProtos = UnknownProtos + 1
String =
String ..
("\n%slocal %s\n"):format(
string.rep(" ", indent),
DecompileFunction(v, false, indent + 1, "nil" .. tostring(UnknownProtos))
)
else
String = String .. ("\n%slocal %s\n"):format(string.rep(" ", indent), DecompileFunction(v, false, indent + 1))
end
end
return String .. "\n" .. consts .. Aconsts .. "\n" .. string.rep(" ", indent) .. "end"
end
function DecompileScript(Script)
local Decompiled = "--[[ DECOMPILED WITH SIMPLEDECOMPILE ]]\n"
if typeof(Script) == "Instance" and Script.ClassName == "ModuleScript" then
local s, e =
pcall(
function()
for i, v in require(Script) do
if type(v) == "table" then
if #v == 0 then
if type(i) == "number" then
Decompiled = Decompiled .. ("\nlocal table_%d = {}; --[[ EMPTY TABLE ]]\n"):format(pKey1(i, v))
else
Decompiled = Decompiled .. ("\nlocal %s = {}; --[[ EMPTY TABLE ]]\n"):format(i)
end
else
if type(i) == "number" then
Decompiled =
Decompiled ..
("local table_%d = {\n%s};\n"):format(
pKey1(i, v),
processTableDescendants(v, 0, "t_" .. tostring(i))
)
else
Decompiled =
Decompiled ..
("local %s = {\n%s};\n"):format(
i,
processTableDescendants(v, 0, "t_" .. tostring(i))
)
end
end
elseif type(v) == 'function' then
if type(i) == 'number' then
Decompiled = Decompiled .. ("\n%s"):format(DecompileFunction(v, false, 0, "f_"..tostring(i)))
else
Decompiled = Decompiled .. ("\n%s"):format(DecompileFunction(v, false, 0))
end
end
end
end
)
if not s then
return "-- Error occured when trying to iterate over ModuleScript, Message: " .. e
end
return Decompiled
end
local s, e =
pcall(
function()
local uks = 1
for i, v in getsenv(Script) do
if type(v) == "table" then
if #v == 0 then
if type(i) == "number" then
Decompiled = Decompiled .. ("\nlocal table_%d = {}; --[[ EMPTY TABLE ]]\n"):format(pKey1(i, v))
else
Decompiled = Decompiled .. ("\nlocal %s = {}; --[[ EMPTY TABLE ]]\n"):format(i)
end
else
if type(i) == "number" then
Decompiled =
Decompiled ..
("local table_%d = {\n%s};"):format(
pKey1(i, v),
processTableDescendants(v, 0, "t_" .. tostring(i))
)
else
Decompiled =
Decompiled ..
("local %s = {\n%s};\n"):format(i, processTableDescendants(v, 0, "t_" .. tostring(i)))
end
end
end
end
for i, v in gcsenv(Script) do -- garbage collection senv
local name = debug.getinfo(v).name
if name == nil and Settings.IncludeNils then
Decompiled = Decompiled .. ("\n%s"):format(DecompileFunction(v, false, 0, "nil" .. tostring(uks)))
uks = uks + 1
elseif name ~= nil then
Decompiled = Decompiled .. ("\n%s"):format(DecompileFunction(v, false, 0))
end
end
end
)
if not s then
return " --An error occured while attempting to iterate over Script's enviroment!\nMessage: " .. e
end
return Decompiled
end
getgenv().decompile = DecompileScript
return DecompileScriptFeatures & Information
Can decompile LocalScripts & ModuleScripts
v1.0.0:
Can read upvalues
Can read Vector3, Vector2, UDim, UDim2 values
Can fully read tables
Can read instance paths
What it can't do as of now:
Read while loops
Read for loops
Read function arguements's names (For example decompiling this
function HelloWorld(Greet, Bye)
would return function HelloWorld(a,b)
It currently uses the alphabet as arguement counters)
Use function arguements
Use constants
Hardly read constants
How do I use it?
Put this in your autoexec folder,
Get the script you want to decompile's path,
enter in your executor:
decompile(scriptPath)
If you want to print the result do
print(decompile(scriptPath))
decompile returns a string value.
v1.0.1 Changelogs:
[+] A LOT better reading for constants:
Instead of the usual local v8 = 'task' local v9 = 'wait', I implemented a feature that detects libraries (os, math, utf8, bit32, debug, string, table, ...) and checks if the next constant is a function of the library.
[+] Better proccessTableDescendants code:
You might've checked the previous code and said, why the hell is he doing if type(key) == "number" ... instead of making a function for it?!!,
I did that.
[+] Better instance path reading
Instead of the previous (instance:GetFullName() function)
I created a function called GetFullName that returns a better looking path, For example
Previous: game.Players.LocalPlayer.leaderstats.Cash
Current: game:GetService("Players").LocalPlayer:FindFirstChild("leaderstats"):FindFirstChild("Cash")
Also added an if check to check if the first service is Workspace and used workspace:FindFirstChild instead of game:GetService("Workspace")
[-] Added 2 extra arguements for the DecompileFunction function (exclude name, indent count)
You don't need to worry about those as if they don't exist the script automatically adds them.
[+]
Added support for Enum values and fixed a string bug, If you had a string value in a table it wouldn't add quotes around it, Now it does.
v1.0.2 Changelogs:
[+] Fixed the main decompile function having incorrect arguements for DecompileFunction
[+] Metatables & Metamethods support
[_] To do list:
Reading .new functions better.
v1.0.3 Changelogs:
[+] Fixed error when trying to iterate over a script
[+] Added better metamethod decompiling (For example:
Script now does
meta1 = setmetatable(v1, {});
meta1.__index = function...
instead of just putting the metamethods in the table itself.)
[+] Fixed error where if an instance was parented to nil it would break the script, Script now returns Instance = nil -- Instance parented to nil
[_] To do:
Add better decompiling:
Make script generate possible code instead of just returning constants & upvalues.
// I do not promise this will be added, I will try to work on it tho.
[+] Fixed ModuleScript error
v1.0.4 The Ultimate Update
Code sample:
```
local a = false
local b = 1.712
local c = "hello world"
function abc()
print(a, b, c)
end
```
[+] Upvalues reading much easier!
Now you don't have to worry about having trouble reading upvalue names because i got you covered!
Reading abc's upvalues will return either:
bool_1 = false (a)
number_2 = 1.712 (b)
string_3 = "hello world" (c)
or
a = false
b = 1.712
c = "hello world"
instead of
v1 = false
v2 = 1.712
v3 = "hello world"
Note: If the output was the first result then it's gonna be (DATATYPE_UPVALUE INDEX)
[-] Removed libraries (task, utf8, ...) checks from constants.
[+] Better instance naming, Instead of doing v1 = path... now it does the instance's name (Example: Part = workspace.Parts.Part, HumanoidRootPart = game.Players.LocalPlayer.Character.HumanoidRootPart)
[+] MORE FUNCTION READING: You are now able to read garbage collection functions from a script that you weren't able to read before!
[+] Settings: Only one setting at the moment but you can switch it from your workspace/SimpleDecompile/config.json files, It is the IncludeNils setting
[?] What is includeNils?
IncludeNils determines whethere you can see the functions that's names are nil, If true will show the functions, if false will exclude them, usually they're found in the garbage collection
[+] Better Protos:
Instead of your usual "local function nil(a, b).... local function nil(a) -- again"
It now has different identifiers for each proto, nil1, nil2, nil3...
[+] Better Formatting:
Fixed the dumb --[[Found %d roblox functions in the function]]'s indentations, Now it also shows a clearer list.
[+] Now loadstringing returns the decompile function, (Aka you can do local functionName = loadstring(game:HttpGet("ThisScript'sURL")(), functionName(script))
I say this is one of the best updates to come to SimpleDecompile, Please make sure to leave a favorite or thumbs up.
TODO: Buffer reading and buffer decompiling.
Community Comments (33)
More Scripts for Universal Scripts
KeylessUniversal
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Cool
Can this code see loops?
@REDz read the features
yo uh, I'm a bit stupid so I can't figure out how to use this
@nixelpizel decompile(LocalScript/ModuleScript path, false -- If you want exclude the function's name in the code, 0 -- Indent count)
Cool. hope to see more updates in the future!
@tycoonman95 working on one right now!
@Liver_zMods_001 First execute the script / put it into your autoexec, Second execute local Decompiled = decompile(game.Players.LocalPlayer.PlayerGui.Home.hud.GunFrame.TextButton.LocalScript) Do whatever you want with the Decompiled variable, It's also a string. You can print it, save it to a file, do whatever you want.
im getting the following error: :148: attempt to iterate over a nil value when trying to decompile a script
@flamedev I have already made a fix but i cannot update right now because i am working on a better metamethod support update, Sorry for the inconvience and this will be fixed quickly.
@flamedev @tycoonman95 I updated the script. flamedev I fixed the issue you reported.
--An error occured while attempting to iterate over Script's enviroment! Message: :185: :160: invalid argument #1 to 'getsenv' (LocalScript or ModuleScript expected) when trying to decompile module script
@flamedev Ah, if you want to decompile the module you must require it, I will fix that.
@flamedev Fixed it
@vxsty Works! Very good decompiler! vouch
First: You should only put the ModuleScript or LocalScript path, Second: You didn't add a print(decompile(...)) If you want to print it add a print before the decompile. @F_hub99
@vxsty what is the rec exe? idk what to try and dont wanna waste time
@SkireScripts What? I've never heard of such thing. Perhaps you mean't ro-exec? That's a roblox pc executor. (PAID)
Add a gui
@F_hub99 Is it really neccessary? You can just use hydroxide and copy the path then decompile it.
@flamedev what? That isn't a problem with my script you're loadstringing 2 different things, 3 if mine is included. Also arceus x is horrible, use delta (If you want)
oh, mb, also the pastebin is ur script raw
@flamedev never made one, It's possibly just a stolen version of mine
@vxsty You should make one for wave honestly that would be fire.
@ssamsam315 This should work for wave.
Error occured when trying to iterate over ModuleScript, Message: :308: invalid argument #2 to 'format' (number expected, got string) I get this with IncludeNils = true using kramp btw
@giganticspy91 Use simpledecompile v2 if you're not using krampus, Krampus has an already implemented obfuscator you can use that.
okay just wondering if this was any better. I have problems with unluau
I dont get alot of stuff. I want to get an entire game with working scripts and guis and the map how?
@yarikku05 saveinstance()
Patched.
@Bjarnos It isn't your executor just doesn't support core functions.
what do i paste it on