Encoding & generators
Encode, inspect, check and generate with confidence.
Password and passphrase generator
Tool: Encoding & generatorsGenerate passwords or word-based passphrases with cryptographic randomness.
Base64 converter
Tool: Encoding & generatorsEncode UTF-8 text or decode strict Base64 and URL-safe Base64.
ASCII code table and lookup
Tool: Encoding & generatorsLook up all 128 ASCII codes in decimal, hexadecimal and binary, with printable characters and named control codes.
Binary hex viewer
Tool: Encoding & generatorsInspect the bytes of a local file as offsets, hexadecimal and printable ASCII.
Binary text translator
Tool: Encoding & generatorsTranslate text to UTF-8 binary or hexadecimal bytes, and decode valid byte sequences back into text.
Caesar cipher decoder and encoder
Tool: Encoding & generatorsEncode or decode a Caesar shift, apply ROT13, or inspect every possible letter shift for a puzzle.
Character-encoding converter
Tool: Encoding & generatorsDecode Base64 bytes using a character encoding or encode text into downloadable bytes.
Coupon code generator
Tool: Encoding & generatorsMake discount codes, promo codes and gift voucher codes in bulk, with prefixes and no duplicates in each batch.
Hashes, checksums and SRI
Tool: Encoding & generatorsCalculate exact file or text hashes, CRC-32 checksums and Subresource Integrity values.
HMAC generator
Tool: Encoding & generatorsGenerate an HMAC for a message with a UTF-8 or hexadecimal secret key.
HTML entity converter
Tool: Encoding & generatorsEscape HTML special characters or decode HTML character references.
JWT decoder
Tool: Encoding & generatorsDecode JWT headers and claims without sending a token anywhere.
Morse code translator
Tool: Encoding & generatorsTranslate text to International Morse code or decode dots and dashes, with an optional playable WAV download.
Number-base converter
Tool: Encoding & generatorsConvert arbitrarily large integers between bases 2 to 36.
PIN generator
Tool: Encoding & generatorsGenerate random 4-digit, 6-digit or longer PIN codes on your device, individually or in batches.
Product key generator
Tool: Encoding & generatorsCreate random product keys and licence codes with custom groups, separators and prefixes.
Serial number generator
Tool: Encoding & generatorsCreate sequential or random serial numbers with prefixes, leading zeros and downloadable batches.
Synthetic test-data generator
Tool: Encoding & generatorsCreate fake records with IDs, names, example-domain emails and UK cities.
TOTP generator
Tool: Encoding & generatorsCalculate a time-based one-time password from a Base32 shared secret.
ULID generator and inspector
Tool: Encoding & generatorsGenerate sortable ULIDs and inspect their encoded timestamps.
Unicode escape converter
Tool: Encoding & generatorsConvert text to Unicode escape sequences and decode Unicode escapes.
URL percent encoder and decoder
Tool: Encoding & generatorsEncode or decode URL components and HTML form query values.
UUID generator and inspector
Tool: Encoding & generatorsGenerate UUID v4 identifiers and inspect UUID versions, variants and available timestamps.
Password and passphrase generator
Generate passwords or word-based passphrases with cryptographic randomness.
Base64 converter
Encode UTF-8 text or decode strict Base64 and URL-safe Base64.
ASCII code table and lookup
Look up all 128 ASCII codes in decimal, hexadecimal and binary, with printable characters and named control codes.
Binary hex viewer
Inspect the bytes of a local file as offsets, hexadecimal and printable ASCII.
Binary text translator
Translate text to UTF-8 binary or hexadecimal bytes, and decode valid byte sequences back into text.
Caesar cipher decoder and encoder
Encode or decode a Caesar shift, apply ROT13, or inspect every possible letter shift for a puzzle.
Character-encoding converter
Decode Base64 bytes using a character encoding or encode text into downloadable bytes.
Coupon code generator
Make discount codes, promo codes and gift voucher codes in bulk, with prefixes and no duplicates in each batch.
Hashes, checksums and SRI
Calculate exact file or text hashes, CRC-32 checksums and Subresource Integrity values.
HMAC generator
Generate an HMAC for a message with a UTF-8 or hexadecimal secret key.
HTML entity converter
Escape HTML special characters or decode HTML character references.
JWT decoder
Decode JWT headers and claims without sending a token anywhere.
Morse code translator
Translate text to International Morse code or decode dots and dashes, with an optional playable WAV download.
Number-base converter
Convert arbitrarily large integers between bases 2 to 36.
PIN generator
Generate random 4-digit, 6-digit or longer PIN codes on your device, individually or in batches.
Product key generator
Create random product keys and licence codes with custom groups, separators and prefixes.
Serial number generator
Create sequential or random serial numbers with prefixes, leading zeros and downloadable batches.
Synthetic test-data generator
Create fake records with IDs, names, example-domain emails and UK cities.
TOTP generator
Calculate a time-based one-time password from a Base32 shared secret.
ULID generator and inspector
Generate sortable ULIDs and inspect their encoded timestamps.
Unicode escape converter
Convert text to Unicode escape sequences and decode Unicode escapes.
URL percent encoder and decoder
Encode or decode URL components and HTML form query values.
UUID generator and inspector
Generate UUID v4 identifiers and inspect UUID versions, variants and available timestamps.