Alphabet ↔ Number Converter
Text → Numbers (A=1 … Z=26) Encode
Output
Numbers → Text (1=A … 26=Z) Decode
Output
Quick Reference — A=1 to Z=26
Binary Converter
Text → Binary Encode
Binary Output
Binary → Text Decode
Text Output
Number → Binary Utility
Binary → Decimal Utility
Hex / Octal / ASCII Converters
Text → Hexadecimal Encode
Hexadecimal → Text Decode
Text → Octal Encode
Octal → Text Decode
Text → ASCII Codes Encode
ASCII Codes → Text Decode
Multi-Base Number Converter Utility
Base64, URL & HTML Encoding
Text → Base64 Encode
Base64 → Text Decode
URL Encode Encode
URL Decode Decode
HTML Entities Encode Encode
HTML Entities Decode Decode
Text → Unicode Code Points Encode
Unicode → Text Decode
Text → Base32 Encode
Base32 → Text Decode
Text → Base58 Encode
Base58 → Text Decode
Cipher Encoders
ROT13 Cipher
Caesar Cipher — Alphabet / Numbers / Urdu Cipher
⚠ The shift slider range auto-adjusts to the selected mode's alphabet size (25 for letters, 9 for digits, 37 for Urdu). Password adds a second keyed shift layer on top of the Caesar shift — leave blank to use plain Caesar.
Atbash Cipher (A=Z, B=Y…) Cipher
Vigenère Cipher Cipher
NATO Phonetic Alphabet Phonetic
Pig Latin Fun
Pigpen Cipher (Masonic) Symbol
⚠ Encode draws the grid/dot glyphs and also outputs a plain-text code (e.g.
A1) under each glyph — paste that code string back in to decode.Wingdings / Webdings Symbol Cipher Symbol
⚠ Uses a fixed A–Z/0–9 → dingbat symbol table (a portable Unicode stand-in for the Windows Wingdings/Webdings fonts) so it encodes/decodes identically on every device.
Bacon's Cipher Symbol
⚠ Classic 24-letter A/B code (I/J and U/V share a code). If you fill in a cover sentence, letters are also hidden by making cover-text letters bold for A and italic for B — the true typeface-concealment version of the cipher.
Dancing Men Cipher Symbol
⚠ Inspired by "The Adventure of the Dancing Men". Each stick figure's arm/flag position is a letter. Encode draws the figures and a plain code string under them — paste that code back in to decode.
Caesar Brute Force (all 25 shifts) Decode
Letter Frequency Analyzer Analyze
⚠ English text usually peaks at E, T, A, O, I, N. Compare the tallest bars here against that pattern to help crack a Caesar or simple substitution cipher by hand.
Rail Fence Cipher Cipher
Affine Cipher Cipher
⚠ Formula: E(x) = (a·x + b) mod 26. Only values of a coprime with 26 are listed, since decoding needs a's modular inverse.
Playfair Cipher Cipher
⚠ Classic 5×5 keyed grid digraph cipher (I/J share a cell, X pads doubled letters and odd length). Both sides need the same keyword.
Enigma Machine Simulator Cipher
⚠ Faithful reciprocal-cipher logic using historical Enigma I rotor wirings + reflector B. Because it's reciprocal, running the output back through with the same rotors/positions/plugboard decodes it. Non-letter characters pass through unchanged (and don't advance the rotors).
AES-256 Encrypt / Decrypt Secure
⚠ Real AES-256-GCM authenticated encryption via your browser's built-in Web Crypto API — not a toy cipher. Your password is stretched into a key with PBKDF2 (200,000 iterations); a random salt and IV are generated per encryption and bundled with the output as Base64, so encrypting the same text twice gives different ciphertext. Wrong password on decrypt fails cleanly instead of returning garbage.
XOR Cipher Secure
⚠ Repeating-key XOR, output shown as hex. Symmetric — the same key encodes and decodes. For real security use AES above; XOR with a short key is easy to break with frequency analysis.
Image Steganography
Reveal Message from Image Decode
⚠ Works entirely in your browser (no upload) using LSB (least-significant-bit) pixel encoding — the message is stored by tweaking the last bit of each color channel, invisible to the eye. Use PNG or BMP for the host image; lossy formats like JPEG will destroy the hidden data on save, so always download the result as PNG. Larger images can hide longer messages (roughly image-width × image-height × 3 bits, minus a small header).
Reveal Message — Randomized Embedding Decode
⚠ Inspired by OutGuess: instead of writing bits into the first pixels in order (which a basic LSB scanner can find instantly), the secret key seeds a pseudo-random generator that scatters each bit across different, non-sequential pixels throughout the whole image. Without the exact key, the hidden bits are statistically spread among the untouched pixels and can't be located or reassembled — so the key is required for both hiding and revealing (there's no "without password" mode, the key is the mechanism). As with the LSB tool above, always export/download as PNG — re-saving as JPEG will destroy the hidden data.
Morse Code Converter
Text → Morse Code Encode
Morse Code → Text Decode
Morse Code Reference Chart
Hash Code Generator
Generate All Hashes Cryptographic
⚠ SHA hashes use the browser's built-in Web Crypto API. MD5 uses a pure-JS implementation. All processing is local — nothing leaves your device.
Hash Comparison Verify
CRC32 Checksum Checksum
Case & Format Converters
All Case Conversions Multi
Output
Remove Extra Spaces Clean
Text Sorter Utility
Find & Replace Utility
Special Text Converters
Reverse Text Fun
Upside-Down Text (Unicode Flip) Fun
Mirror Text (Backwards) Fun
Text → Braille (Unicode) Encode
Bold / Italic Unicode Text Stylish
Zalgo Text Generator Glitch
Text → Leetspeak (1337) Encode
Leetspeak → Text Decode
Text Statistics & Analysis
Text Analyzer
Character Frequency
Word Frequency (Top 20)
Duplicate Line Remover Clean
Number Extractor Extract
IP Address Tools
IPv4 → Decimal Convert
Decimal → IPv4 Convert
Extract IP Addresses Extract
IP Address Validator Check
IP Geolocation Online
Requires internet access (uses free ip-api.com)
Special IP Ranges
Common Network Ports
Emoji & Alt Codes
Number/Alt Code → Emoji/Char Lookup
Emoji/Char → Number Lookup
Common Alt Codes Reference
Generators
Strong Password Generator Gen
UUID / GUID Generator Gen
Lorem Ipsum Generator Gen
Developer Tools
JSON Formatter & Validator Dev
JWT Decoder Dev
URL Parser Dev
Design Tools
Color Converter & Wheel Design
Random Palette Generator Design
CSS Gradient Generator Design
background: linear-gradient(to right, #FF5533, #3388FF);
CSS Unit Converter (px ↔ rem/em) Design