Gerador de Frases-Senha Seguras
Generate diceware-style memorable secure passphrases
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drape quaff jasmine knave treeWhy passphrases?
A passphrase combines several random words. It's easier to remember than a random string, yet entropy grows quickly - each word from a 256-word list adds ~8 bits (log₂(256)). Six words yields ~48 bits of word-selection entropy, which exceeds many random passwords.
This generator uses crypto.getRandomValues() - the same CSPRNG used by hardware tokens. Math.random() is never used.
Sobre esta ferramenta
A passphrase is a password made of multiple random, unrelated words (like "correct-horse-battery-staple") rather than a jumble of characters - often easier to remember while still being highly resistant to brute-force attacks due to the huge number of possible word combinations. This tool generates diceware-style random passphrases using a large word list.
Como usar esta ferramenta
- Set word count and separatorChoose passphrase length and delimiter format that target system accepts.
- Generate random phraseCreate diceware-style unrelated word combinations.
- Optional hardening tweaksAdd capitalization, numbers, or symbols only if policy demands.
- Store securelySave in password manager and avoid plain-text sharing/storage.
Por que usar
- Creates memorable yet high-entropy authentication secrets.
- Reduces user lockouts compared to complex random character strings.
- Excellent for human-typed credentials and encryption passphrases.
- Supports customizable format requirements.
Usos comuns
- Generating master passwords for password managers.
- Creating strong passphrases for encrypted backups.
- Provisioning user-friendly secure credentials for teams.
- Replacing weak pattern-based passwords with random word phrases.
Dicas para melhores resultados
- Use at least 5-6 random words for critical accounts.
- Keep words truly random; do not manually choose familiar phrases.
- Prefer password manager storage over memorization-only strategy.
- Enable MFA to complement passphrase security.
Erros a evitar
- Choosing famous quotes instead of random word combinations.
- Using too few words for sensitive accounts.
- Reusing same passphrase across services.
- Storing passphrase in unencrypted notes/chat apps.
Perguntas frequentes
A sufficiently long passphrase (typically 5-6+ random words) can have comparable or greater entropy than a shorter complex password, while being significantly easier for a human to remember and type accurately.
Diceware is a method of generating passphrases by randomly selecting words from a large, fixed word list (traditionally using physical dice) - it guarantees true randomness in word selection, which is what actually makes the passphrase's entropy calculable and trustworthy.
More words mean higher entropy and better security - 5-6 random words from a large wordlist is a commonly recommended baseline for strong, memorable passphrases.
Yes. Passphrase is free for normal use with no account required, and ToolBox does not add a watermark to your result.
Most tools in this category run in your browser so the file stays on your device. If a tool needs a temporary server job, files are handled for that job only and are not kept as a lasting archive.
No install needed. Open Passphrase in your browser, add your file or paste your input, then download or copy the result.
Yes on modern mobile browsers. For large files, a desktop browser is usually faster and more reliable.
Try a different quality or format setting, use a smaller input, or open a related tool (for example compress before convert). Keep a copy of the original file before replacing it.
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