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Encoding tools

Encode and decode Base64, URL and percent encoding, HTML entities, hex and other textual representations locally, with no data leaving your browser.

20 tools in this category, all running in your browser.

Tools in Encoding

  • Base64 Encoder / Decoder

    /tools/base64-encoder/

    Encode UTF-8 text to Base64 or decode Base64 back to UTF-8 text.

    Encoding · Developer

  • URL Encoder / Decoder

    /tools/url-encoder/

    Percent-encode or decode URL text, for whole URLs or single components.

    Encoding · Developer

  • Base64URL Encoder / Decoder

    /tools/base64url-encoder/

    Encode UTF-8 text to URL-safe Base64 or decode a Base64URL value back to text.

    Encoding · Developer

  • Base32 Encoder / Decoder

    /tools/base32-encoder/

    Encode UTF-8 text to RFC 4648 Base32 or decode a Base32 value back to text.

    Encoding · Developer

  • Base58 Encoder / Decoder

    /tools/base58-encoder/

    Encode UTF-8 text to Base58 (Bitcoin alphabet) or decode a Base58 value back to text.

    Encoding · Developer

  • Base62 Encoder / Decoder

    /tools/base62-encoder/

    Encode UTF-8 text to Base62 or decode a Base62 value back to text.

    Encoding · Developer

  • ASCII85 Encoder / Decoder

    /tools/ascii85-encoder/

    Encode UTF-8 text to Adobe ASCII85 or decode an ASCII85 value back to text.

    Encoding · Developer

  • ASCII / Unicode Code Converter

    /tools/ascii-encoder/

    Convert text to space-separated Unicode code points and back.

    Encoding · Developer

  • Hex Encoder / Decoder

    /tools/hex-encoder/

    Encode UTF-8 text to hexadecimal byte pairs or decode hex back to text.

    Encoding · Developer

  • Binary Encoder / Decoder

    /tools/binary-encoder/

    Encode UTF-8 text to space-separated 8-bit binary groups or decode binary back to text.

    Encoding · Developer

  • Octal Encoder / Decoder

    /tools/octal-encoder/

    Encode UTF-8 text to space-separated octal byte groups or decode octal back to text.

    Encoding · Developer

  • JWT Encoder & Verifier

    /tools/jwt-tool/

    Encode and verify HMAC-signed JWTs (HS256, HS384, HS512) in your browser and check their time claims.

    Encoding · Developer

  • PEM & Certificate Helper

    /tools/pem-certificate-helper/

    Inspect PEM blocks, convert PEM to and from base64 DER, and compute certificate fingerprints locally.

    Encoding · Developer

  • AES Encryption Tool

    /tools/encryption-tool/

    Encrypt and decrypt text with AES-256-GCM in your browser, with the key derived locally from a passphrase.

    Encoding · Developer

  • Base64 ↔ PDF

    /tools/pdf-base64/

    Encode a PDF to Base64 or decode Base64 back to a PDF — standard or URL-safe, with an optional data-URL prefix — locally in your browser.

    PDF · Encoding

  • Roman Numeral Converter

    /tools/roman-numeral-converter/

    Convert between Roman numerals and decimal numbers for values 1 to 3999.

    Calculators · Encoding

  • Morse Code Translator

    /tools/morse-code/

    Encode text as International Morse code and decode it back.

    Encoding

  • Unicode Escape

    /tools/unicode-escape/

    Escape text to Unicode code-point escape sequences and decode them back.

    Encoding

  • HTML Entity Encoder

    /tools/html-entity-encoder/

    Encode text to named and numeric HTML entities and decode them back.

    Encoding

  • Braille Translator

    /tools/braille-translator/

    Translate text to grade-1 Unicode Braille and back.

    Encoding

Related to tools in Encoding, derived from the tool metadata.

Related guides & references

Guides and references covering tools in Encoding, derived from the tool and content metadata.

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