Encoding & Crypto — Guides & Articles

• Calculate CRC32 on Linux Without the Terminal

  Published 2026-09-10

  Calculate CRC32 on Linux without opening a terminal. The CRC32 Calculator computes CRC-32/ISO-HDLC from UTF-8 text or exact hex bytes and returns an…

  

• Base100 Encode Large Text: UTF-8 Expansion and Limits

  Published 2026-09-10

  Base100 encode large text by mapping every UTF-8 byte to a code point from U+1F3F7 to U+1F4F6. Expect UTF-8 expansion and stay under 500,000 symbols.

  

• BCC Checksum: Command Line vs Online Compared

  Published 2026-09-10

  BCC checksum command line vs online: how XOR-8 BCC and Modbus ASCII LRC differ between shell scripts and browser tools, and where framing causes mistakes.

  

• Caesar Cipher Decoder: Command Line vs Online Compared

  Published 2026-09-10

  Compare Caesar cipher decoder command line and online options. See the trade-offs in setup, speed, privacy, and use cases before choosing your approach.

  

• Base58 Decode for Beginners: A Byte-First Workflow

  Published 2026-09-10

  Decode raw Bitcoin Base58, verify exact hex bytes, handle leading zeros, and avoid confusing readable text with trustworthy protocol data.

  

• Change File Encoding to UTF-8 and Download It

  Published 2026-09-09

  Change file encoding to UTF-8 with explicit source selection, fatal validation, and a downloadable BOM-free result. No upload, no silent corruption.

  

• ASCII Code Converter Explained: Characters and Their Codes

  Published 2026-09-09

  An ASCII code converter turns standard 7-bit ASCII characters into fixed decimal numbers from 0 to 127, and back. See how the bounded range, validation…

  

• AES Encryption Online Free, No Sign Up: In Your Browser

  Published 2026-09-09

  Free AES encryption online with no sign up — AES-256-GCM, PBKDF2, and a 128-bit tag run locally in your browser. Password never uploaded.

  

• Convert Text to Binary in Excel Beyond the BASE Function

  Published 2026-09-09

  Excel's BASE function handles numbers, not full Unicode text. Use a UTF-8 binary converter for letters, accents, and emoji — here's how, step by step.

  

• Does A1Z26 Preserve Capitalization? A Clear Answer

  Published 2026-09-09

  A1Z26 does not preserve capitalization. The numeric mapping has no case information, so input is normalized to uppercase and decoded output is always…