Encoding & Crypto— Guides & Articles

• A1Z26 Cipher Translator: Read and Write the 1–26 Code

  Published 2026-08-12

  Translate English letters into A1Z26 numbers (A=1 to Z=26) and decode validated sequences back to text. Hyphens and slashes keep word breaks clear.

  

• Text to Hex Alternative: Run the Encoder Locally

  Published 2026-08-12

  A text to hex alternative that runs locally, encodes exact UTF-8 bytes, supports three formats and shows surrogate warnings. No upload, no BOM.

  

• Text Steganography Alternative Using Zero-Width Bits

  Published 2026-08-11

  A text steganography alternative that hides a short UTF-8 message inside visible cover text using zero-width Unicode characters, runs in your browser, and…

  

• How to Create SHA-512 Hashes From Text or Files

  Published 2026-08-11

  Generate a 128-character SHA-512 digest from UTF-8 text or a file locally. Copy Hex or Base64 output, verify against trusted references, avoid pitfalls.

  

• Generate a SHA-256 Hash in JavaScript: Web Crypto and Tool

  Published 2026-08-11

  Generate a SHA-256 hash in JavaScript using the Web Crypto API or a local browser tool, with exact UTF-8 byte handling and FIPS 180-4 verification.

  

• How to Get the SHA-1 Hash of a Certificate File

  Published 2026-08-11

  Get the SHA-1 fingerprint of any certificate file in your browser. Step-by-step for X.509 certs, Android keystores, and legacy checksums.

  

• How to Generate a Password in Google Password Manager

  Published 2026-08-10

  How to generate a password in Google Password Manager with full control over length, characters, and entropy. Step-by-step local generator method.

  

• Avoid Mistakes When Using a ROT47 Encoder Decoder

  Published 2026-08-10

  Practical ways to avoid mistakes with a ROT47 encoder decoder: keep non-ASCII untouched, escape punctuation for downstream systems, and rely on one button…

  

• How to Decrypt a Hill Cipher: A Worked Example

  Published 2026-08-10

  Walk through Hill cipher decryption with a concrete example. See how the 2x2 key 3 3; 2 5 turns HIAT back into HELP, and how to use the decoder tool.

  

• ROT Cipher Decoder: Reverse ROT13 Text Online

  Published 2026-08-10

  A ROT cipher decoder applies reversible ROT13 to ASCII letters in your browser. Paste text, click apply, and copy the result with nothing uploaded.