Encoding & Crypto— Guides & Articles

• Convert a Domain to Punycode for DNS Compatibility

  Published 2026-07-21

  Punycode converts Unicode domain names (like 中文.com) into ASCII-only strings (xn--fiq228c.com) so they work in DNS. Use a browser-based tool to switch…

  

• Check Password Complexity in Active Directory Before Enforcement

  Published 2026-07-21

  Verify if a proposed password meets Active Directory complexity rules locally with instant, NIST-aligned feedback—no server changes or audit logs.

  

• Generate a Strong Password in 1Password in Seconds

  Published 2026-07-21

  Use 1Password’s built-in Password Generator to create long, random passwords locally—no sync, no uploads. Set length, character types, and avoid ambiguous…

  

• Translate Morse Code Audio to Text in Your Browser

  Published 2026-07-21

  Convert Morse code audio to readable text instantly using a free online tool—no downloads, no delays, just clear playback and real-time decoding.

  

• How to Generate an HMAC: SHA-256, SHA-384 and SHA-512

  Published 2026-07-21

  Generate an HMAC the right way: pick SHA-256, SHA-384 or SHA-512, enter UTF-8 or hex key and message bytes, and copy hex or Base64 output from a local tool.

  

• How to Decipher a Hill Cipher Without Manual Math

  Published 2026-07-21

  Deciphering a Hill cipher requires matrix math and modulo-26 arithmetic. Use a free online Hill Cipher Decoder to encrypt or decrypt A-Z text instantly with…

  

• Base100 Encoder: Turn Text Into Emoji Symbols Online

  Published 2026-07-21

  A Base100 encoder maps each UTF-8 byte to a single emoji from the original Base100 set. Use our free online tool to encode text or decode Base100 back to…

  

• Convert Hex Files to Readable Text Without Errors

  Published 2026-07-20

  Turn hexadecimal files into plain text instantly with strict UTF-8 validation and explicit separator rules—no silent replacements, no guesswork.

  

• Gzcompress Online: Compress and Decode Text in Your Browser

  Published 2026-07-20

  Run gzcompress-style text compression online without PHP. Encode UTF-8 into Base64-wrapped RFC 1952 gzip bytes and decode gzip Base64 back to readable text…

  

• Convert Any File to Base64 Without Uploading It

  Published 2026-07-20

  Encode local files up to 10 MB as strict Base64 or decode Base64 back into a downloadable file—all in your browser, no uploads, no data sent.