Free Generators
Generate strong passwords with a real entropy readout, QR codes as PNG or SVG, UUID batches, random picks and accessible colour palettes. Nothing leaves your device.
5 free generators tools
- Password Generator — Strong passwords & passphrases
- QR Code Generator — Free QR codes as PNG or SVG
- UUID Generator — UUID v4 & v7, ULID and NanoID
- Random Number Generator — Numbers, dice, coins, lists & teams
- Color Palette Generator — Harmonies with WCAG contrast checks
About these tools
Generators are the category where “runs in your browser” stops being a nice-to-have and becomes the entire point. A password generated on someone else’s server is not a password you should trust — it existed, in plaintext, in a process you do not control. Here, randomness comes from crypto.getRandomValues(), the browser’s cryptographically secure source, and the result never leaves the page.
The same holds for QR codes containing a Wi-Fi passphrase, UUIDs seeded for a database migration, or a colour palette you are testing against WCAG contrast thresholds. Each generator shows its own quality metric — password entropy in bits with a realistic crack-time estimate, QR error-correction level, contrast ratios against both black and white — so you can tell a good output from a plausible-looking one.
Frequently asked questions
Are generated passwords safe?
Yes. They are produced with the Web Crypto API’s cryptographically secure random number generator, entirely on your device, and are never transmitted, logged or stored. Nobody — including us — ever sees them.
How is password strength measured?
In bits of entropy, calculated from the actual character pool and length rather than a vague “weak/strong” badge, alongside an estimated offline crack time at 100 billion guesses per second.
Can I download the QR code?
Yes — as a crisp PNG at your chosen resolution or as an infinitely scalable SVG, both generated locally.
Do the generators work offline?
Yes. Everything is computed in the page, so once it has loaded no connection is required.
Other tool categories
- PDF tools — Merge, split, compress, convert and organise PDFs without uploading a thing.
- Developer tools — Formatters, encoders, hashers and inspectors — the daily-driver dev bench.
- Text & Writing tools — Count, clean, convert and compose text with instant, precise feedback.
- Calculators tools — Money, dates, units and health — answers with the working shown.
- Brain & Cognition tools — Measure reaction time, memory, attention and reasoning against real norms.
- Time & Focus tools — Pomodoro, stopwatch, countdowns and time zones — accurate to the millisecond.