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Hash & Cryptography

Generate hashes, encode/decode data, and create secure passwords.

Base64 Encode
Encode text to Base64, full Unicode support.
Base64 Decode
Decode Base64 strings back to readable text.
URL Encode
Percent-encode text for safe use in URLs.
URL Decode
Decode percent-encoded URLs back to readable text.
MD5 Generator
Compute the MD5 hash of any text, live as you type.
SHA-1 Generator
Compute the SHA-1 hash of any text, live as you type.
SHA-256 Generator
Compute the SHA-256 hash of any text, live as you type.
SHA-384 Generator
Compute the SHA-384 hash of any text, live as you type.
SHA-512 Generator
Compute the SHA-512 hash of any text, live as you type.
Password Generator
Generate strong random passwords with configurable character sets.

Hash & Cryptography — About These Tools

Hash functions compress any input into a fixed-length fingerprint; encoders like Base64 and URL encoding make binary data safe to transport. Use these tools to verify downloads, generate checksums, create secrets, and encode data — computed locally, nothing uploaded.

Frequently asked questions

Which hash should I use?

SHA-256 for anything security-related today. MD5 and SHA-1 are fine for checksums but broken for signatures — do not use them where collision resistance matters.

Is hashing the same as encryption?

No. Hashing is one-way — you cannot recover the input. Encryption is two-way with a key. Encoding like Base64 is not encryption at all and is trivially reversible.

Why do identical files sometimes produce different hashes?

They should not — identical bytes always produce an identical hash with the same algorithm. If hashes differ, the files differ somewhere, even if they look the same.

Other categories

Formatter & MinifierNumber ConversionString & TextImage Utilities