Showing 10-18 of 46 in Tech

• tech · 2026-08-07

  What is a JWT? JSON Web Tokens explained

  Learn how JWTs are structured (header, payload, signature) and what claims mean - then decode a token privately in your browser.

• tech · 2026-08-07

  How to decode a JWT online for free

  Inspect JWT header, payload, algorithm, and expiry locally without uploading the token. Decode-only - signature is not verified.

• tech · 2026-08-07

  JWT decode vs verify: why decoding is not enough

  Decoding shows claims; verification proves integrity. Learn why servers must verify signatures - and how to inspect tokens safely.

• tech · 2026-08-07

  What is SHA-256? Hashing explained

  Learn how SHA-256 hashes work, why they are one-way, and common uses for checksums - then generate a digest locally.

• tech · 2026-08-07

  How to generate a SHA-256 hash online for free

  Create a SHA-256 hex digest in your browser without uploading text. Free, private hashing with Jigglify.

• tech · 2026-08-07

  SHA-256 vs MD5: which hash should you use?

  MD5 is broken for collision resistance; SHA-256 is the modern default for integrity checks. Compare them and hash locally.

• tech · 2026-08-07

  How strong passwords work (length, entropy, and uniqueness)

  Understand what makes a password hard to guess - length, character set, and never reusing secrets across sites.

• tech · 2026-08-07

  How to generate a strong password online for free

  Create a high-entropy password in your browser with tunable length and character sets - nothing uploaded.

• tech · 2026-08-07

  Password generator best practices

  Use unique passwords, a password manager, and local generation. Practical habits that beat clever substitutions.