Encoding

Percent-encode or decode URL text using component, path, query, fragment, or userinfo rules. It runs in your browser, so your input stays on the device.

Encode bytes with Bitcoin-alphabet Base58 or Base58Check, or decode them back. Supports optional Base58Check version-byte validation.

Encode text or uploaded files as lowercase hexadecimal, or decode hex back to binary. It all runs in your browser, so your input stays on the device.

Encode bytes with a self-identifying multibase prefix, or detect the prefix and decode an existing multibase string.

Encode bytes with a human-readable prefix and Bech32 or Bech32m checksum, or validate and decode an existing string.

Encode or decode basE91, a compact printable alphabet. Runs in your browser.

Encode or decode RFC 1924 Base85. Not Ascii85 or Z85. Runs in your browser.

Encode text or files as RFC 9285 Base45, or decode Base45 text back to bytes. Designed for compact use with QR alphanumeric mode.

Encode or decode MIME quoted-printable text. Runs in your browser.

Convert a domain name between Unicode and ASCII Punycode. Runs in your browser.

Encode or decode HTML named, decimal, or hex character references. Runs in your browser.

Encode bytes as whole-value Base62, or decode Base62 text back to bytes. Choose either supported digit and letter ordering.

Encode text or uploaded files as Base32, or decode Base32 text and files back to binary. It all runs in your browser, so your input stays on the device.

Encode text or uploaded files as Base64, or decode Base64 text and files back to binary. It all runs in your browser, so your input stays on the device.

Encode text or uploaded files as Adobe Ascii85, or decode Ascii85 back to binary. It all runs in your browser, so your input stays on the device.