OneTaskEncoding Tools
Base64, URL Encoding, HTML Entities, Hex, Binary and Morse Code
Tools for encoding and decoding text. Base64, URL encoding, HTML entities, hex and binary, Morse code, the Caesar cipher and the NATO phonetic alphabet, plus Unicode inspection and data URIs. Every tool works in both directions.
41 tools tagged Encoding
ASCII Table
All 128 ASCII codes in decimal, hex, octal and binary.
Audio To Base64
Turn a short audio clip into a base64 data URI.
Base32, Base58 And Base85 Encoder
Encode and decode Base32, Base58, Ascii85 and Z85.
Base64 Encoder / Decoder
Encode and decode Base64, standard or URL-safe.
Bearer Token Decoder
Decode an Authorization header and find out what kind of token it is.
Binary To Text Converter
Text to binary or ASCII codes and back again, UTF-8 aware.
Classic Ciphers
Vigenère, Beaufort, Atbash, ROT47 and rail fence, encode and decode.
CRC32 Calculator
CRC-32, CRC-32C and Adler-32 checksums of text or hex bytes.
Data URI Decoder
Decode a data URI and check what its payload really contains.
File Encryptor
Password-encrypt any file with AES-256-GCM, without uploading it.
Hex Dump Viewer
View any file as hex and ASCII, with type detection and entropy.
Hidden Character Inspector
Find the invisible characters breaking your text, then strip them.
HTML Entity Encoder
Escape and unescape HTML entities in any text.
Image To Data URI
Base64-encode an image as a data URI for CSS or HTML.
JWT Encoder
Sign a JSON payload into an HS256, HS384 or HS512 JWT.
JWT Signature Verifier
Verify a JWT's signature with a secret, PEM key or JWKS.
Morse Code Key
Send Morse by hand and decode it live through the microphone.
Morse Code Sound
Type a message and hear it keyed as real Morse code.
Morse Code Translator
Translate text to Morse code and back again.
Multi Decoder
Detect and unwrap nested Base64, URL, hex and entity encodings automatically.
NATO Phonetic Alphabet
Spell text as Alfa, Bravo, Charlie for reading aloud.
Number To Words Converter
Numbers to English words and written numbers back to digits.
PEM Inspector
Decode PEM and DER into a readable ASN.1 tree.
Punycode Converter
Convert domains between Unicode and xn-- Punycode in both directions.
QR Code Decoder
Read a QR code from an image and check it before opening.
Roman Numeral Converter
Roman numerals to numbers and back, a line at a time.
ROT13 And Caesar Cipher
Encode and decode ROT13 and Caesar shift ciphers.
Secure Note
Share a password as an encrypted link that no server ever sees.
Signature Verifier
Check whether a signature over a message matches a public key.
SSH Key Converter
Convert SSH public keys between OpenSSH, SSH2 and PEM formats.
String Escaper
Turn raw text into a safe string literal in any language.
String Unescaper
Decode backslash escapes and quoted literals back into plain text.
SVG Data URI Encoder
Encode SVG into a compact, quote-safe CSS data URI.
Text Encryptor
Encrypt and decrypt messages with a passphrase, AES-256-GCM in your browser.
Text To Hex Converter
Convert text to hexadecimal bytes and back again.
TOTP QR Code Generator
Authenticator app setup QR codes from a secret, issuer and account.
Unicode Confusables Detector
Find lookalike and invisible Unicode characters hiding in text.
Unicode Converter
Convert text to and from code points, escapes, entities and UTF-8 bytes.
Unicode Font Styler
Make bold, italic or struck-through text for social bios.
URL Encoder / Decoder
Percent-encode and decode URLs, values and form data.
XOR Cipher
XOR with a repeating key, or brute-force every single-byte key.