Secret & Password Generator
Create strong passwords, memorable passphrases, numeric PINs, and API keys that never leave your browser — free, unlimited, and cryptographically secure.
Characters
Passphrase options
How to create a strong password
Four quick steps to a secret that is genuinely hard to guess — and easy to manage afterwards.
- 1
Choose a length
Drag the slider to set how long your secret should be. Longer is stronger — we recommend at least 16 characters.
- 2
Pick character types
Mix uppercase, lowercase, numbers, and symbols. More character types means more entropy and a harder-to-crack secret.
- 3
Generate and copy
Regenerate until you are happy with the result, then copy your secret to the clipboard with a single click.
- 4
Store it safely
Save it in a password manager or, for app secrets and API keys, store it end-to-end encrypted in Envless.
Why use the Envless secret generator?
A free, no-nonsense generator from a team that lives and breathes secrets — built on the same security principles as our encrypted secrets platform.
Cryptographically secure
Every value is generated with your browser’s built-in CSPRNG (crypto.getRandomValues) — the same randomness trusted to create real encryption keys.
100% in your browser
Nothing is sent over the network, logged, or stored. The generator runs entirely client-side, so your secrets never leave your device.
Built for real secrets
Create strong passwords, then store and share them as end-to-end encrypted secrets and environment variables with Envless.
Instant and unlimited
Generate as many unique, high-entropy secrets as you need — no sign-up, no rate limits, no friction.
Passwords, passphrases, PINs, and API keys
Switch modes to create a random password, a memorable passphrase of real words, a numeric PIN, or a high-entropy API key — each generated securely in your browser.
Secret generator FAQ
Everything you need to know about generating strong, secure secrets with Envless.
Yes. Secrets are generated locally in your browser using crypto.getRandomValues, the cryptographically secure random number generator built into every modern browser. Nothing is ever transmitted to our servers or anyone else.
No. The generator is 100% client-side. We never see, log, or store the secrets you create — they exist only on your device until you copy them.
Length and unpredictability. A strong password is long (16 or more characters), random, unique to each account, and mixes uppercase, lowercase, numbers, and symbols. This tool maximizes all of these by default.
Use at least 12 characters for everyday accounts and 16 or more for anything sensitive. For API keys and machine secrets, longer is always better — this generator supports up to 64 characters.
Yes. Switch to API key mode for high-entropy values suitable for API keys, tokens, and other application secrets, or increase the length and enable symbols in password mode. There are also dedicated passphrase and PIN modes for memorable or numeric secrets.
Use it right away and store it somewhere safe. For application secrets and environment variables, store and share them end-to-end encrypted with Envless so your team never has to paste secrets into chat or plaintext files.
Four. Generate a random password, a memorable passphrase made of real words, a numeric PIN, or a high-entropy API key — just switch modes. Every option is created locally in your browser with crypto.getRandomValues.
More free tools
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Ship secrets, not chaos.
Start free today and discover why developers trust Envless for end-to-end encrypted, versioned secrets across every environment.