Encoding & Crypto — Guides & Articles

• Free ASCII Code Converter, No Sign Up: A Browser Path

  Published 2026-09-21

  Convert text to ASCII decimal codes or decode codes back to text in your browser. No signup, no upload, strict 7-bit validation, clear errors. Free to use.

  

• AES Encryption Online: Encrypted Text as a JSON Package

  Published 2026-09-20

  Encrypt or decrypt text online with AES-256-GCM. The browser-side tool emits a JSON package carrying the salt, IV, and authenticated ciphertext.

  

• How to Check A1Z26 Cipher Translator Output Safely

  Published 2026-09-20

  Check the result after using an A1Z26 cipher translator with a round-trip test, hand-checked table lookup, and clear error checks on the explicit…

  

• XOR Encryption API Alternative: Browser-Side Repeating Key

  Published 2026-09-20

  Skip the XOR encryption API. Apply a repeating-key XOR transform to UTF-8 text locally and exchange hex or Base64 output without remote calls.

  

• Vigenere Cipher Decoder Bulk: Decode Long Ciphertexts

  Published 2026-09-20

  Bulk decode Vigenere ciphertext up to 500,000 UTF-16 code units with a known A–Z key. Process long documents and message batches entirely in your browser.

  

• Decode UTF-8 Bytes Without Silent Replacement Characters

  Published 2026-09-20

  Decode UTF-8 bytes from hex, decimal, or binary notation back to original Unicode text. Learn strict decoding rules, byte patterns, and how to verify a…

  

• Create RSA Keys to Enable SSH: PEM vs OpenSSH

  Published 2026-09-20

  RSA Key Generator produces RSA-OAEP SPKI and PKCS#8 PEM, not the OpenSSH format sshd expects. See what browser tools deliver and how SSH differs.

  

• Char Code Lookup Free No Sign Up: A Browser Path

  Published 2026-09-19

  A free, no sign-up char code lookup that runs in your browser. Convert any text to U+ code points or decode U+XXXX and \u{} tokens locally.

  

• Text to Hex Example: What UTF-8 Bytes Look Like in Practice

  Published 2026-09-19

  See real text to hex examples: ASCII, accented Latin, CJK, and emoji each map to specific UTF-8 bytes. Learn what byte count and output length reveal.

  

• How to Convert Text to Binary Manually, Byte by Byte

  Published 2026-09-19

  Convert text to binary manually the right way using UTF-8 byte rules. See step-by-step logic, common pitfalls with accents and emoji, and a strict browser…