Is my input sent to a server?

No. Hashing runs entirely in your browser using the Web Crypto API. Your text never leaves your device. The REST API endpoint processes input server-side in an isolated, stateless function with no logging.

Which algorithm should I use?

Use SHA-256 for new projects — it is the current standard for digital signatures, API authentication, and data integrity. Use MD5 or SHA-1 only when a legacy system requires it; both are broken for collision resistance but still acceptable for non-security checksums like file integrity verification. Use SHA-512 when you need a 512-bit digest or when a framework specifically requires it.

What is binary (base 2)?

Binary is the native number system of computers. Every integer is represented using only the digits 0 and 1. Each digit position represents a power of 2: the rightmost is 2^0 (1), then 2^1 (2), 2^2 (4), 2^3 (8), and so on. The decimal number 10 is 1010 in binary (8 + 2).

What is hexadecimal (base 16) and why do developers use it?

Hexadecimal uses 16 digits: 0–9 and A–F. Developers prefer hex because it maps cleanly to binary: each hex digit represents exactly 4 binary digits (a nibble). This makes hex a compact way to express binary values — the 8-bit byte 11111111 is simply FF in hex, and 32-bit memory addresses fit in 8 hex characters. CSS color values (#FF6600), file magic bytes, and network masks are all commonly expressed in hex.

Tool comparison

Hash Generator vs Number Base Converter

Hash Generator (cryptography) and Number Base Converter (encoding) come from different categories but appear together in developer workflows. This guide explains what each does and when to reach for one over the other.

Bottom line

Hash Generator outputs digest values in hexadecimal; Number Base Converter can translate those hex digests to decimal or binary for contexts that expect a different representation. The tools compose naturally: hash first, then convert the output base.

What each tool does

Hash Generator

A cryptographic hash function takes an input of any length and produces a fixed-size output — the hash or digest — that uniquely represents the input. The same input always produces the same hash; changing even a single character produces a completely different hash. Hash functions are one-way: you cannot reverse a hash to recover the original input. MD5 and SHA-1 are older algorithms still used for non-security checksums. SHA-256 and SHA-512 are current standards for security-sensitive use cases such as digital signatures, API authentication, and password storage (always combined with a proper key-derivation function like bcrypt or Argon2 for passwords).

Open Hash Generator →

Number Base Converter

The Number Base Converter converts integers between the four bases used in computing: binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). Enter a number in any base and the tool returns all four representations instantly — no manual arithmetic required. It also returns a grouped binary format (4-digit nibbles) and grouped hex (2-digit bytes) for easier reading, the bit length of the value, and whether it is a power of two.

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Side-by-side comparison

Feature	Hash Generator	Number Base Converter
Category	cryptography	encoding
Primary purpose	Generate MD5, SHA-1, SHA-256, SHA-384, or SHA-512 hashes from any text input.	Convert numbers between binary, octal, decimal, and hexadecimal.
Inputs	input, algorithm, encoding	input, from_base
Outputs	hash, algorithm, encoding, input_byte_length, digest_length	input_normalized, from_base, decimal, binary, octal, hexadecimal, binary_grouped, hex_grouped, bit_length, is_power_of_two

When to use each

Use Hash Generator when…

How to verify a SHA-256 checksum online

Confirm that a downloaded string or file content matches a known SHA-256 hash.

How to generate an MD5 hash online

Quickly compute an MD5 digest of a string for a legacy API or non-security checksum.

Use Number Base Converter when…

Binary to Decimal Converter

Convert binary (base 2) number to decimal

Hex to Decimal Converter

Convert hexadecimal to decimal and other bases

Frequently asked questions

Is my input sent to a server?: No. Hashing runs entirely in your browser using the Web Crypto API. Your text never leaves your device. The REST API endpoint processes input server-side in an isolated, stateless function with no logging.
Which algorithm should I use?: Use SHA-256 for new projects — it is the current standard for digital signatures, API authentication, and data integrity. Use MD5 or SHA-1 only when a legacy system requires it; both are broken for collision resistance but still acceptable for non-security checksums like file integrity verification. Use SHA-512 when you need a 512-bit digest or when a framework specifically requires it.
What is binary (base 2)?: Binary is the native number system of computers. Every integer is represented using only the digits 0 and 1. Each digit position represents a power of 2: the rightmost is 2^0 (1), then 2^1 (2), 2^2 (4), 2^3 (8), and so on. The decimal number 10 is 1010 in binary (8 + 2).
What is hexadecimal (base 16) and why do developers use it?: Hexadecimal uses 16 digits: 0–9 and A–F. Developers prefer hex because it maps cleanly to binary: each hex digit represents exactly 4 binary digits (a nibble). This makes hex a compact way to express binary values — the 8-bit byte 11111111 is simply FF in hex, and 32-bit memory addresses fit in 8 hex characters. CSS color values (#FF6600), file magic bytes, and network masks are all commonly expressed in hex.