Encoding & hashes

Encode, decode, and generate checksums for development work. Free to use, no sign-up needed.

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30 tools

Base64 EncodeTurn text into Base64, with full support for accents and emoji. Base64 DecodeTurn Base64 back into readable text, and get a clear message when the input is not valid. URL EncodePercent-encode text so it survives being put in a URL or a query string. URL DecodeTurn percent-encoded text back into readable characters. HTML Entity EncodeEscape angle brackets, ampersands and quotes so text is safe to drop into a web page. HTML Entity DecodeTurn HTML entities back into the characters they stand for, including numeric ones. Text to BinaryConvert text into its binary bytes, eight bits at a time. Binary to TextTurn groups of eight bits back into readable text, with a clear message if the input is malformed. Text to HexConvert text into hexadecimal bytes. Hex to TextTurn hexadecimal bytes back into readable text, whether they are spaced, comma separated or run together. MD5 Hash GeneratorGet the MD5 checksum of any text. Note that MD5 is broken for security use. SHA-1 Hash GeneratorGet the SHA-1 digest of any text, as a lowercase hex string. SHA-256 Hash GeneratorGet the SHA-256 digest of any text, as a lowercase hex string. SHA-512 Hash GeneratorGet the SHA-512 digest of any text, as a lowercase hex string. Base32 EncodeTurn text into Base32, the RFC 4648 alphabet with padding. Base32 DecodeTurn Base32 back into readable text, with a clear message if it is malformed. Text to DecimalConvert text into its decimal byte values, separated by spaces. Decimal to TextTurn a list of byte values from 0 to 255 back into readable text. Unicode EscapeReplace every non-ASCII character with its backslash-u escape sequence. Unicode UnescapeTurn backslash-u escape sequences back into the characters they stand for. JWT DecoderRead the header and payload of a JSON Web Token. The signature is shown, not verified. CRC32 ChecksumGet the CRC32 checksum of any text as eight hexadecimal digits. SHA-384 Hash GeneratorGet the SHA-384 digest of any text, as a lowercase hex string. HMAC GeneratorSign text with a secret key using HMAC and the SHA family of hashes. URL ParserBreak a URL into its protocol, host, port, path, hash and every query parameter. Query String ParserTurn a query string into JSON, keeping repeated keys as an array. Basic Auth GeneratorTurn a user and password into the Authorization header a server expects. TOTP Code GeneratorGet the six digit code for a two-factor secret, the same one an app would show. Encrypt TextLock a message with a password using AES-GCM, all inside your own browser. Decrypt TextUnlock a message that this site encrypted, using the password it was locked with.

Good to know

Should I choose encode or decode?

Encode turns readable text into another representation. Decode reads that representation back. Choose the direction that matches the text you already have.

Is encoding the same as encryption?

No. Base64, URL encoding and similar formats are reversible representations. Hash tools produce a digest rather than an encrypted copy.

Why is the output different from another tool?

Spaces, line endings, capitalisation and character encoding can affect the result. Compare the exact input and selected settings.