31 tools
100% client-side: your input never leaves your browser.Verify

Generator Tools

Produce placeholder text, unique identifiers and strong passwords, every byte generated locally with the browser's Web Crypto API. Open DevTools → Network and confirm: no request leaves your tab when you click a button.

Random data, never with Math.random()

Three generators backed by crypto.getRandomValues() (UUID v4, passwords) and the canonical Cicero source (lorem ipsum). No Math.random() anywhere: it's not suitable for credentials or opaque identifiers. UUID v7 is supported when you need a timestamp-sortable primary key.

Start with Lorem Ipsum Generator for placeholder text, Password Generator for credentials, or UUID Generator for identifiers.

Frequently Asked Questions

How are random values (UUID, password, lorem) generated?

UUID v4 and passwords use crypto.getRandomValues() (Web Crypto API), a cryptographic entropy source provided by the operating system. Lorem Ipsum uses the canonical Cicero text truncated and permuted. That's the standard usage, not random generation.

UUID v4 vs v7 — which should I use?

v4 is pure random, ideal for opaque identifiers (tokens, session IDs). v7 is sortable by embedded timestamp, optimal for database primary keys (better index locality, smaller B-tree depth). The UUID generator supports both.

Can I bulk-generate (100+ UUIDs or passwords at once)?

Yes, up to 1000 UUIDs in one go. Bulk password generation is rarer in practice, so it's capped to smaller batches by default. Everything still runs locally.

Can the QR generator encode Wi-Fi and contact cards, not just links?

Yes. The QR code generator has Text/URL, Wi-Fi, vCard, email, SMS, phone, WhatsApp, geo location and calendar-event modes, with custom colors, square/dot/rounded modules and a center logo, plus adjustable error correction and PNG or SVG export. Like every generator here it runs client-side: the content you encode, including Wi-Fi passwords, never leaves your browser.

Can I customize the output format (uppercase UUIDs, no dashes, etc.)?

Yes, each generator exposes its options. UUID: uppercase, no dashes, with braces. Password: charset, length, exclude ambiguous characters. Lorem: paragraphs, sentences, words, with or without the canonical "Lorem ipsum dolor sit amet" opener.

Explore other hubs

Back to home →