Password, QR Code & Hash Generators: A Practical Guide

WaiHub added password, QR code, and hash generators alongside JSON, Base64, and JWT tools. Everything runs locally in your browser — ideal for signups, shareable links, and checksum debugging.

Password generator

Similar to LastPass Password Generator: length 4–128, charset toggles, custom/exclude characters, and a live weak/average/strong meter. Uses crypto.getRandomValues — nothing is uploaded.

Use for new account passwords, test env rotation, or API key placeholders. Exclude ambiguous chars (0/O, 1/l) when sharing verbally.

QR code generator

Create codes for text, URLs, email (mailto), phone (tel), and WiFi (standard WIFI: scheme). Live preview and PNG download. WiFi codes let guests join without typing the password.

URLs auto-prefix https:// when missing. Resize 128–512px for print or slides.

Hash generator (MD5 / SHA)

Type text once, get MD5, SHA-1, SHA-256, and SHA-512 hex digests together. Copy one or all — handy for API signature checks and cache fingerprints.

MD5 is legacy-friendly but not for password storage; prefer SHA-256/512 for integrity. Never paste production secrets into untrusted sites.

Workflow tips

Signup flow: strong password → QR card for your landing URL.

API debug: format JSON → hash the sign field → decode JWT if needed.

Search password, QR, MD5, or SHA-256 on the WaiHub home page to jump straight to each tool.