Integer Obfuscator
Obfuscate any integer using base conversion, arithmetic expressions, bitwise operations, and prime factor decomposition. Enter a number and instantly get 11+ obfuscated forms with explanations and character lengths. Perfect for protecting magic numbers, configuration constants, and cryptographic values. Free, private, and no signup required.
Obfuscate integers using multiple disguises: base conversion, arithmetic expressions, bitwise operations, prime factors, and more. Enter any integer and instantly see over a dozen obfuscated forms that evaluate to the same value. Copy any variant for use in your code.
Enter an integer above to see multiple obfuscated forms. The tool generates base conversions (hex, octal, binary), arithmetic expressions, bitwise operations, prime factor decompositions, and more - all evaluating to the same value.
Integer Obfuscation in Practice: Obfuscating integer literals is a common technique used to hide magic numbers, configuration values, and cryptographic constants from casual inspection. Real-world obfuscators combine multiple layers - for example, wrapping a hex literal in a math expression inside a parseInt call. The most effective obfuscation for your use case depends on the context (JavaScript, Python, C, etc.) and the desired tradeoff between readability and protection.
Why Use Our Integer Obfuscator?
Instant Multi-Technique Obfuscation
Obfuscate any integer instantly using base conversion (hex, octal, binary), arithmetic expressions (addition, subtraction, multiplication), bitwise operations (XOR, NOT, shift, OR), prime factor decomposition, parseInt expressions, and complex random arithmetic. All techniques update in real time as you type.
Secure & Private Number Processing
All integer obfuscation happens entirely in your browser. Your numbers, obfuscated expressions, and analysis details never leave your device. No data uploaded, no tracking, no signup required - complete privacy for all your obfuscation experiments.
Integer Obfuscator Online - No Installation
Use the integer obfuscator directly in any modern browser with no downloads, apps, or plugins required. Features real-time multi-technique output, configurable options (negative values, complex expressions), per-variant copy buttons, and shortest variant identification.
11+ Obfuscation Techniques in One Tool
Our integer obfuscator covers all major disguises: hex (0xFF), octal (0o77), binary (0b11), math expressions, prime factor products, double bitwise NOT (~~n), XOR with zero (n^0), left shift zero (n<<0), OR with zero (n|0), parseInt from hex strings, and complex multi-number expressions. Every technique includes an explanation of how it works.
Common Use Cases for Integer Obfuscator
Hiding Magic Numbers in Source Code
Developers obfuscate magic numbers in their source code to prevent casual reverse engineering. Instead of writing plain numbers like 255 or 65535, use hex (0xFF), octal (0o77), or math expressions that evaluate to the same value but are harder to spot at a glance.
Protecting Configuration Constants
Sensitive configuration values - API ports, encryption parameters, buffer sizes, and timeout values - can be obfuscated using base conversion or bitwise operations. This makes it harder for automated scanners to identify key configuration constants in compiled or minified code.
Code Golf & Obfuscation Challenges
Integer obfuscation is a key technique in code golf and obfuscation competitions. Use the tool to find the shortest or most creative representation of a number, whether through prime factor decomposition, complex expressions, or combined techniques.
Learning Number Systems & Bitwise Operations
Students learning about different number systems (decimal, hex, octal, binary) and bitwise operations use the integer obfuscator to see practical examples. Each obfuscation technique includes an explanation of how it works, making it a valuable educational tool.
Testing Obfuscation Detection Tools
Security researchers and tool developers use the integer obfuscator to generate test cases for obfuscation detection tools. The 11+ techniques provide a comprehensive test suite for evaluating how well detection tools identify different types of number obfuscation.
Cryptographic Constant Obfuscation
Cryptographic algorithms use specific constants (hash seeds, round constants, S-box values) that are prime targets for reverse engineering. The integer obfuscator helps researchers understand how these constants can be hidden using multiple obfuscation layers.
Understanding Integer Obfuscation
What is Integer Obfuscation?
Integer obfuscation is the practice of representing a numeric literal in a way that is functionally equivalent but visually different from the plain decimal form. Instead of writing "255" directly, an obfuscated form might be "0xFF", "(128+127)", "~~255", or "(5*51)". The obfuscated expression evaluates to the same numeric value at runtime but is harder to recognize at a glance or through simple text searches.
Our integer obfuscator generates multiple disguises for any integer using 11+ distinct techniques spanning base conversion, arithmetic expressions, bitwise operations, prime factor decomposition, and more. Each technique is displayed with an explanation of how it works and its character length, helping you choose the right level of obfuscation for your needs. All processing runs locally in your browser with no data sent to any server.
How Our Integer Obfuscator Works
- 1. Enter an Integer: Type or paste any integer into the input field. The tool accepts positive and negative integers within JavaScript's safe integer range. Toggle the "Make it negative" option to obfuscate the negative form of the same number.
- 2. Automatic Multi-Technique Generation: As you type, the tool generates obfuscated forms using 11+ techniques. Base conversion shows the number in hex (0xFF), octal (0o77), and binary (0b11). Arithmetic expressions use addition, subtraction, and multiplication. Bitwise operations apply double NOT (~~n), XOR-0 (n^0), left shift-0 (n<<0), and OR-0 (n|0). Prime factor decomposition finds the prime factor product. Toggle "Include complex expressions" to add random multi-number arithmetic.
- 3. Compare and Copy: Each obfuscated form is displayed in a card with its technique name, character length, and an explanation of the technique. The shortest variant is highlighted in the stats panel. Click the Copy button next to any variant to use it in your source code. Use the results summary to quickly identify the best technique for your obfuscation needs.
Integer Obfuscation Techniques Explained
- Base Conversion (Hex, Octal, Binary): The most common obfuscation technique. Hexadecimal (base 16) uses 0-9 and A-F with a 0x prefix, making 255 become 0xFF. Octal (base 8) uses 0-7 with a 0o prefix. Binary (base 2) uses 0-1 with a 0b prefix. Each base changes the visual representation while preserving the exact numeric value.
- Arithmetic Expressions: Represent a number as the result of an arithmetic operation, such as addition (128+127), subtraction (262-7), multiplication (5*51), or prime factor products (3*5*17). These expressions are evaluated at runtime to produce the original value.
- Bitwise Operations:Use JavaScript bitwise operators that return the original value: double NOT (~~n truncates to 32-bit signed integer), XOR with zero (n^0), left shift by zero (n<<0), and OR with zero (n|0). These are technically no-ops that produce the same value through bitwise manipulation.
- parseInt from Hex String: Encodes the number as a hex string and wraps it in parseInt with radix 16: parseInt("FF", 16) returns 255. This hides the number as a string that requires runtime evaluation to resolve.
Privacy, Security & Availability
The integer obfuscator is 100% free with no signup required. All number processing is performedlocally in your browser using client-side JavaScript - your numbers, obfuscated expressions, and analysis resultsnever leave your device. There areno usage limits or rate caps. The tool generates 11+ obfuscation techniques for any integer, provides per-variant copy buttons, shortest variant identification, and detailed technique explanations. Use it as many times as you need for code obfuscation, education, or experimentation.
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Frequently Asked Questions About Integer Obfuscator
Integer obfuscation is the practice of representing numeric literals in forms that are functionally equivalent but visually different from the plain decimal representation. Instead of writing "255", an obfuscated form might be "0xFF", "(128+127)", "~~255", or "parseInt('FF', 16)". The obfuscated expression evaluates to the same value at runtime but is harder to recognize at a glance, helping protect sensitive constants from casual reverse engineering.
The integer obfuscator includes 11+ distinct techniques: hexadecimal conversion (0xFF), octal conversion (0o77), binary conversion (0b11), addition expressions, subtraction expressions, multiplication expressions, prime factor decomposition, double bitwise NOT (~~n), XOR with zero (n^0), left shift by zero (n<<0), OR with zero (n|0), parseInt from hex strings, and complex random arithmetic expressions.
The shortest form depends on the number. For most numbers, hex (0xFF) or octal (0o77) are the shortest because they use fewer characters than decimal for the same value. The tool automatically identifies and highlights the shortest variant in the stats panel. For small numbers (0-9), bitwise operations like n^0 or ~~n are the shortest.
Yes. Toggle the "Make it negative" option to obfuscate the negative form of the same number. The tool wraps the obfuscated expression in a negation: -(expression). This allows you to obfuscate negative constants like -255 or -65535 using the same techniques.
Absolutely. The integer obfuscator runs entirely in your browser. Your numbers, obfuscated expressions, and analysis details are never sent to any server, stored in a database, or tracked in any way. All processing happens locally on your device - nothing leaves your computer. No signup required.
Hexadecimal (base 16) uses digits 0-9 and letters A-F with a 0x prefix - compact and widely used. Octal (base 8) uses digits 0-7 with a 0o prefix. Binary (base 2) uses digits 0-1 with a 0b prefix - verbose but shows the actual bit pattern. Each base provides a different visual disguise while preserving the exact numeric value.
The techniques shown are JavaScript-compatible. Hex (0xFF), octal (0o77), binary (0b11), and basic arithmetic work in most modern languages. Bitwise operations (~~n, n^0, n<<0, n|0) and parseInt are JavaScript-specific. For other languages, check the language syntax for equivalent features. The arithmetic expressions work universally.
The tool finds all prime factors of the number using trial division up to the square root. For example, 255 factors to 3 * 5 * 17, so the obfuscated form is (3*5*17). If the number itself is prime and greater than 3, the tool shows a multiplication expression instead. This technique is particularly effective for numbers with several prime factors.
Yes - the integer obfuscator is 100% free with no signup, no account, and no usage limits. Obfuscate any number as many times as you need, completely free forever. There are no hidden charges, premium tiers, or usage caps of any kind.