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Base64 Encoder / Decoder
Encode text into Base64 or decode Base64 back into readable UTF-8 text.
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Encodings
Convert text and bytes with Base64, Base32, Hex, URL encoding, Base58, Bech32, Morse code, hash functions, and other practical formats.
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Base32 Encoder / Decoder
Encode text into RFC 4648 Base32 or decode Base32 back into readable UTF-8 text.
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File & Message Encryptor
Encrypt individual files or private messages locally in your browser with password-based authenticated encryption.
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URL Encoder / Decoder
Encode text into URL-safe percent encoding, or decode percent-encoded strings back into readable text.
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Ascii85 / Base85 Encoder / Decoder
Encode bytes into Ascii85/Base85 text, or decode Base85 variants back into readable UTF-8 or hex bytes.
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Base58 / Base58Check Encoder / Decoder
Encode text or hex bytes into Base58, decode Base58 strings, and inspect Base58Check version bytes and checksums.
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Hex Encoder / Decoder
Encode readable text into hexadecimal byte values or decode hex back into readable UTF-8 text.
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Bech32 / Bech32m Encoder / Decoder
Encode bytes into Bech32 or Bech32m, decode checksummed strings, and inspect prefixes, data words, checksums, and Bitcoin witness structure.
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Binary Translator
Translate readable text into binary bytes, or decode binary back into UTF-8 or ASCII text.
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Unicode / UTF-8 Inspector
Inspect grapheme clusters, Unicode code points, UTF-16 code units, and UTF-8 bytes, or decode raw bytes back into text.
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XOR Cipher
Encrypt or decrypt bytes with a repeating XOR key, using text, hex, or Base64 input and output.
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Hash Generator
Generate SHA-256, SHA-384, SHA-512, SHA-1, and MD5 hashes from text or files directly in your browser.
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Tap Code Cipher
Send letters as row-and-column tap groups using the classic 5x5 tap code square.
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ROT13
Rotate letters by 13 positions with the same operation for encoding and decoding.
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Advanced Bacon's Cipher
Use direct Bacon symbols, custom A/B pairs, 24/26-letter alphabets, and hidden case-based steganography.
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Simple Bacon's Cipher
Encode letters as five-character A/B groups using the classical 24-letter Bacon alphabet.
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Atbash Cipher
Mirror the alphabet so A maps to Z, B to Y, and so on.
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A1Z26 Cipher
Convert letters to numbers and back again using A = 1 through Z = 26.
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A1Z26 Puzzle Generator
Create graded A1Z26 number puzzles, solve letter-number messages, and test yourself with timed challenges.
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Morse Code Translator
Translate text to Morse and Morse back to text with audio playback and live signal highlighting.
Open toolArticles
The ROT13 Cipher: Thirteen Steps to Obscurity
A thirteen-letter rotation that hides text from casual view but offers almost no real protection.
How to Use the File & Message Encryptor: Complete Guide
A complete practical guide to encrypting files and private messages locally, sharing passwords safely, understanding the protection, and restoring encrypted content.
A1Z26 Cipher: The Mechanics of Simple Substitution
How replacing letters with their alphabet positions teaches symbolic transformation, reversibility, and the limits of simple secrecy.
Morse Code: The Moment Messages Escaped the Horse
How dots, dashes, and disciplined timing helped build the first electric language of the modern world.
Base64: The Encoding That Smuggles Binary Through Text
How a simple 6-bit alphabet became one of the quiet workhorses of email, the web, APIs, certificates, tokens, and modern software plumbing.
Base32: The Encoding That Makes Binary Easier to Read, Copy, and Survive
How a 5-bit alphabet became a quiet helper in authenticator apps, DNS-safe strings, recovery codes, identifiers, and text-shaped software systems.
URL Encoding: How the Web Makes Text Safe for Links
Why spaces become %20, why & turns into %26, and how percent encoding lets ordinary text survive inside web addresses without breaking URL structure.
Hex Encoder / Decoder: Seeing Text as Bytes
How hexadecimal turns raw bytes into readable base-16 pairs, and why 41 means A, but not secrecy.
Simple Bacon's Cipher: Turning Letters into A/B Patterns
How Francis Bacon's five-symbol alphabet turned messages into binary-looking groups, and why the real trick was not the A and B, but how they could be hidden.
Advanced Bacon's Cipher: Hiding A/B Patterns in Plain Sight
How Bacon's biliteral cipher turns letters into five-symbol patterns, then hides those patterns inside custom symbols, case changes, and ordinary-looking cover text.
Ascii85 and Base85: Packing Binary Into Fewer Characters Than Base64
How 4 bytes become 5 printable characters, why Ascii85 is not encryption, and why Base85 still matters in files, programming tools, and binary-to-text encoding.
Base58 and Base58Check: The Encoding Bitcoin Made Famous
How a compact alphabet without 0, O, I, or l helped turn raw bytes into human-friendly strings for Bitcoin addresses, checksummed data, and copy-safe identifiers.
Bech32 and Bech32m: Bitcoin SegWit and Taproot Address Encoding
How a checksummed base32-style format made Bitcoin addresses easier to read, safer to copy, and better suited to modern SegWit and Taproot address formats.
XOR Cipher: The Tiny Bit Operation Behind Real Cryptography
How one simple either-or rule turns text into bytes, bytes into ciphertext, and classical cipher thinking into the logic of stream ciphers, one-time pads, and modern encryption.
Hash Functions: Digital Fingerprints, Not Encryption
How SHA-256, SHA-512, MD5, and other hash functions turn messages and files into fixed-length fingerprints, and why a hash can verify data but cannot be decrypted.
Binary Translator: Where Text Becomes Data
How bits, bytes, ASCII, Unicode, and UTF-8 turn ordinary writing into the numerical data computers store and transmit.
Unicode / UTF-8 Inspector: The Hidden Machinery Inside Text
How code points, grapheme clusters, UTF-16 code units, UTF-8 bytes, normalization, and invisible characters shape digital text.