Base64 & Encoder

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Base64

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Hex

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URL Encoded

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HTML Entities

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Decode format

Decoded Output

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SHA-256

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SHA-1

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MD5 (not cryptographic)

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⚠️ Hashes are one-way. SHA-256 is cryptographically secure. MD5 and SHA-1 are broken for security — only use them for checksums/legacy compatibility.

Base64 — encodes binary data as ASCII. Used in HTTP basic auth, JWTs, email attachments, and API keys.

Hex — each byte as two hex digits (0–9, a–f). Used in network protocols, cryptography, and colour codes.

URL encoding — replaces unsafe characters with %XX. Required in query strings and form data.

SHA-256 — produces a 256-bit fingerprint of any input. Used for password hashing, file integrity, digital signatures.