Encoding & Crypto— Guides & Articles

• How to Find CRC32: Pick the Right Variant and Bytes

  Published 2026-07-29

  Find a CRC32 that matches a spec: pick the right variant, enter UTF-8 text or hex bytes, and verify the eight-digit output against a known value.

  

• How to Calculate a Binary Checksum From Raw Bytes

  Published 2026-07-29

  Calculate a binary checksum from raw bytes step by step. Compare XOR-8 BCC, Modbus ASCII LRC, and byte-sum modulo 256 for serial frames and device protocols.

  

• How to Decrypt a Caesar Cipher in Your Browser

  Published 2026-07-29

  Decrypt a Caesar cipher online: choose Decode, set the shift from 0 to 25, and copy the plaintext — runs locally in your browser.

  

• Binary to Text API Alternative: Run the Decode Locally

  Published 2026-07-29

  Skip the binary to text API: convert 8-bit UTF-8 binary to text entirely in your browser. No endpoint setup, no API keys, nothing uploaded.

  

• How to Convert Hex to Base64 Manually Step by Step

  Published 2026-07-28

  Hex to Base64 by hand collapses to one rule: pack three bytes into 24 bits, slice into four 6-bit chunks, and look each chunk up in the RFC 4648 alphabet.

  

• Base64 Decode API Alternative: Run the Decoder Locally

  Published 2026-07-28

  Replace your Base64 decode API with a browser-based tool. Local RFC 4648 decoding with full UTF-8 support, no rate limits, no uploads.

  

• Base100 Encode API Alternative: Run the Mapping Locally

  Published 2026-07-28

  Skip the Base100 encode API: a browser-only tool runs the same UTF-8 to emoji byte mapping locally, with strict decode and no upload.

  

• Convert ASCII to Character in Java: Cast, Decode, Verify

  Published 2026-07-28

  Cast an ASCII value to a character in Java with one-line type casting, then decode the same list of codes locally with ASCII Converter.

  

• A1Z26 Cipher Generator: Codes That Preserve Word Breaks

  Published 2026-07-28

  Generate A1Z26 codes with hyphen-separated letters and slash-separated words so decoding stays reversible. Everything runs locally in your browser.

  

• How to Convert ASCII to Integer: Exact Decimal Values

  Published 2026-07-27

  Convert ASCII characters to their exact decimal integer values (0–127) and decode decimal integers back to text. RFC 20 based, with strict validation…