Lösenordsgenerator
Choose length and character classes. The generator draws from the browser’s cryptographic random source when available.
Den här sidan översätter det engelska originalet. Beräkningsmotorn är densamma.
Snabbsvar
It builds a string from the selected alphabet using secure randomness in the client.
Exempel: 16 characters with upper, lower, digits and symbols is a common default; longer is stronger if you can store it.
Beräkningarna följer formeln på den här sidan; avrundning och enheter kan ändra sista siffran. Behandla resultatet som en pedagogisk uppskattning.
* Uppskattning. Verkliga belopp kan variera beroende på antaganden.
Vad kalkylatorn gör
It builds a string from the selected alphabet using secure randomness in the client.
Vem den är till för
Anyone creating a new password who wants the generation to stay on-device.
Så fungerar beräkningen
A cryptographically strong RNG picks indices into the allowed character set until the requested length is reached.
Formel
Uniform draws from the selected alphabet. No password is derived from your name or the page URL.
Antaganden
- The browser provides crypto.getRandomValues or an equivalent.
- You store the result in a password manager.
Begränsningar
- Does not check whether a password has appeared in a public breach.
- A short alphabet reduces strength even at long lengths.
Så använder du verktyget
- 1Set the length.
- 2Toggle character classes.
- 3Copy the result into a password manager — not into email.
Vanliga frågor
- Do you store the password?
- Generation is client-side. We do not need the password to render the page.
- Is longer always better?
- Length helps, but a tiny character set or a reused password still fails.