Encoding Tools

Encode and decode Base64, URL, HTML entities and more — instant, local and copy-ready.

16 free tools · everything runs in your browser

Base64 Decoder

Decode Base64 text or files back to their original content, with download support.

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Url Encode Decode

Free online Url Encode Decode tool.

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Binary Hex Converter

Free online Binary Hex Converter tool.

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Base64 Encode Decode

Free online Base64 Encode Decode tool.

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Morse Code Translator

Translate text to Morse code and back with timing control and audible playback of the dots and dashes.

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ROT13 and Caesar Cipher

Encode and decode ROT13 and any Caesar shift, plus a brute-force view of all 26 shifts at once.

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Hex Text Converter

Convert plain text to hexadecimal bytes and decode hex back to text. Handles ASCII and UTF-8.

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HTML Entity Encoder

Encode text into HTML entities for safe embedding, or decode entities back into plain text.

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Tap Code Translator

Translate text into tap code (Polybius square) with audible tap playback, and decode taps back to text.

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Vigenere Cipher

Encrypt and decrypt Vigenere, Atbash, Playfair and Bacon ciphers with automatic key handling.

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UUencode Encoder

UUencode and UUdecode text or files with xxencode variant support for email-safe transfer.

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Quoted-Printable

Encode and decode quoted-printable strings for MIME emails with soft line break handling.

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Punycode Converter

Convert international domain names to punycode (xn--) and back to verify IDN conversions.

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Unicode Codepoints

Convert text to Unicode code points and back, showing decimal, hex, binary and UTF-8 bytes per character.

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String Escape and Unescape

Escape or unescape strings for JavaScript, JSON, URL, HTML and shell with a live diff.

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DNA Encoder

Encode text into DNA nucleotide sequences (A/C/G/T) and decode back, with complement and reverse-complement tools.

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