Encoding & Crypto — Guides & Articles

• Convert a File to Base64 in JavaScript: Run It Locally

  Published 2026-09-22

  Convert a file to Base64 in JavaScript using the browser File API. Read ArrayBuffer bytes locally, emit canonical RFC 4648 output, and avoid uploading any…

  

• CRC32 Calculator Alternative for Standard ISO-HDLC Bytes

  Published 2026-09-22

  Need a CRC32 calculator alternative? This in-browser tool computes the standard CRC-32/ISO-HDLC check value from UTF-8 text or hex bytes, with no upload.

  

• BCC Checksum Explained: How XOR-8 Works and What It Misses

  Published 2026-09-22

  BCC (Block Check Character) XORs every payload byte into one byte. See the XOR-8 formula, the Modbus LRC contrast, and what a one-byte checksum cannot detect.

  

• Base100 Encode on iPhone: A Safari Browser Guide

  Published 2026-09-22

  Run Base100 encoding and decoding on an iPhone through Safari. Map UTF-8 bytes to emoji symbols, copy safely, and decode strict streams without uploading…

  

• Caesar Cipher Decoder Explained: Modular Shifts and Wraps

  Published 2026-09-22

  A Caesar cipher decoder applies a 0–25 modular shift to ASCII A–Z and a–z, wraps the alphabet cleanly, and preserves case, punctuation, digits, and…

  

• Binary to Text on Android Without Installing an App

  Published 2026-09-22

  Convert binary to text on Android without installing an app. A browser-based converter with full UTF-8 support, emoji-safe, with nothing uploaded.

  

• Base64 to Hex Explained: A Byte-Level Walkthrough

  Published 2026-09-21

  Base64 to hex explained at the byte level. See how RFC 4648 quanta map to two-digit hex pairs and run canonical, strict conversions entirely in your browser.

  

• Base58 Decode JavaScript: A Browser-Only Method

  Published 2026-09-21

  Decode Base58 in JavaScript without an npm install. The browser runs the Bitcoin-alphabet inverse conversion locally and shows recovered hex bytes plus a…

  

• Base32 Decode for Beginners: Reading Your First String

  Published 2026-09-21

  New to Base32? Learn what the A-Z 2-7 alphabet means, why padding matters, and how to decode RFC 4648 strings to readable text in your browser.

  

• Convert an Excel File to UTF-8: A File-Based Workflow

  Published 2026-09-21

  Convert an Excel file to UTF-8 by re-decoding Windows-1252, UTF-16LE, UTF-16BE or UTF-8 source bytes into a BOM-free UTF-8 file, with no upload and no…