Should I use MD5 or SHA-1 for security?

No. MD5 and SHA-1 are cryptographically broken and should only be used for legacy file checksums or non-security purposes. Use SHA-256 or stronger for anything security-sensitive.

Is my input sent to a server?

Never. All hashes are computed locally in your browser using the Web Crypto API (and a small MD5 implementation for MD5). Nothing is uploaded, logged, or stored.

Why are SHA-256 hashes always 64 characters?

SHA-256 produces a 256-bit digest, which is 32 bytes — written as 64 hexadecimal characters. SHA-512 is 128 hex characters, SHA-1 is 40, MD5 is 32.

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Hash Generator

Security Tools

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text — instantly, in your browser, with zero uploads.

Security Tools

Password Generator

Generate strong, unique, cryptographically secure passwords with adjustable length, character sets, and entropy meter — 100% in your browser.

Developer Tools

UUID Generator

Generate cryptographically secure UUIDs (v4 random and v7 time-ordered) instantly — in your browser, with hyphens, casing, and braces formatting.

Developer Tools

Base64 Encoder / Decoder

Encode any text to Base64 — or decode Base64 back to plain text — instantly, with optional URL-safe output. Works fully in your browser with UTF-8 support.

Security Tools

Password Strength Checker

Test how strong a password is. Get instant entropy in bits, crack-time estimates, and per-character feedback — all in your browser.

About Hash Generator

A privacy-first cryptographic hash generator. Paste any text and see live MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests update as you type. Toggle uppercase output and copy any hash with one click. SHA algorithms use the native Web Crypto API; MD5 ships with a tiny built-in implementation so it works offline too. Nothing ever leaves your browser.

How to use

Paste or type the text you want to hash.
Read the live MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests.
Toggle "Uppercase" if you need the output in capitals.
Click the copy button next to any hash to copy it.

FAQ

Frequently asked questions

Got questions? We’ve got answers. Here are some of the most common inquiries about Hash Generator.

Home
Security Tools
Hash Generator

Security Tools

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text — instantly, in your browser, with zero uploads.

Hash generator

Uppercase

Input text

0 chars0 UTF-8 bytes

MD5

128 bit

—

SHA-1

160 bit

—

SHA-256

256 bit

—

SHA-384

384 bit

—

SHA-512

512 bit

—

Privacy-first

All hashes are computed locally in your browser. Nothing is sent to a server.

Security Tools

Password Generator

Generate strong, unique, cryptographically secure passwords with adjustable length, character sets, and entropy meter — 100% in your browser.

Developer Tools

UUID Generator

Generate cryptographically secure UUIDs (v4 random and v7 time-ordered) instantly — in your browser, with hyphens, casing, and braces formatting.

Developer Tools

Base64 Encoder / Decoder

Encode any text to Base64 — or decode Base64 back to plain text — instantly, with optional URL-safe output. Works fully in your browser with UTF-8 support.

Security Tools

Password Strength Checker

Test how strong a password is. Get instant entropy in bits, crack-time estimates, and per-character feedback — all in your browser.

About Hash Generator

How to use

Paste or type the text you want to hash.
Read the live MD5, SHA-1, SHA-256, SHA-384, and SHA-512 digests.
Toggle "Uppercase" if you need the output in capitals.
Click the copy button next to any hash to copy it.

FAQ

Frequently asked questions

Got questions? We’ve got answers. Here are some of the most common inquiries about Hash Generator.

Hash generator

Uppercase

Input text

0 chars0 UTF-8 bytes

MD5

128 bit

—

SHA-1

160 bit

—

SHA-256

256 bit

—

SHA-384

384 bit

—

SHA-512

512 bit

—

Privacy-first

All hashes are computed locally in your browser. Nothing is sent to a server.

Related tools

About Hash Generator

How to use

Frequently asked questions

Should I use MD5 or SHA-1 for security?

Is my input sent to a server?

Why are SHA-256 hashes always 64 characters?

Related tools

About Hash Generator

How to use

Frequently asked questions

Should I use MD5 or SHA-1 for security?

Is my input sent to a server?

Why are SHA-256 hashes always 64 characters?