Generatore di Password

Sicurezza

Introduzione

Il Generatore di Password Toollect è uno strumento di sicurezza basato sul browser che crea password e frasi d'accesso forti e crittograficamente casuali.

Weak passwords remain the leading cause of account compromise. The Toollect Password Generator eliminates human bias from password creation by using the Web Crypto API's cryptographically secure random number generator. Every password is produced from true entropy, not predictable algorithms or human patterns.

Unlike server-based password tools that transmit your potential credentials over the network, the Toollect Password Generator operates entirely within your browser. No data is sent to any server, stored in any database, or logged in any session. This privacy-first approach ensures that your generated passwords remain known only to you.

Come funziona

The Password Generator operates in two distinct modes, each powered by cryptographically secure random number generation.

Modalità Casuale

Il generatore costruisce una password carattere per carattere dai set di caratteri selezionati. Ogni carattere è selezionato con crypto.getRandomValues(). Dopo l'assemblaggio, viene applicato un mescolamento Fisher-Yates.

  1. Character selection pool: The generator combines your chosen sets — uppercase letters (A-Z), lowercase letters (a-z), digits (0-9), and symbols (!@#$%^&*). You may also enable the "Exclude ambiguous" option to remove characters that are easily confused (i, l, 1, L, o, 0, O).

  2. Guaranteed coverage: The generator ensures at least one character from each selected set appears in the final password. This prevents passwords like "AAAAAAAA12" when you selected uppercase, lowercase, and digits — even random selection must include each type.

  3. Cryptographic randomness: Each character is selected using crypto.getRandomValues(), which draws from the operating system's entropy sources. This is the same source used by TLS/SSL and disk encryption systems.

  4. Fisher-Yates shuffle: After assembly, the password undergoes an unbiased Fisher-Yates shuffle to randomize character order, eliminating any positional bias from the guaranteed-coverage step.

Modalità Frase d'accesso

Utilizza l'elenco breve di parole EFF #1 (1296 parole inglesi comuni). Ogni parola contribuisce con circa 10,3 bit di entropia. Puoi anche fornire le tue parole personalizzate.

  1. Word list: The built-in list is the EFF Short Word List #1 (1296 short, common English words). Each word contributes approximately 10.3 bits of entropy (log2(1296)).

  2. Custom words: You may supply your own words via the custom words field. The generator uses your words instead of the default list, enabling passphrases in any language.

  3. Assembly: The generator randomly selects the requested number of words, optionally capitalizes each, joins them with your chosen separator, and appends a random digit and/or symbol if configured.

Calcolo della robustezza

La robustezza è misurata in bit di entropia: Debole (0-29), Discreta (30-49), Buona (50-69), Forte (70-99), Molto forte (100+).

The entropy calculation uses these formulas:

  • Random passwords: entropy = length × log2(charset size)
  • Passphrases: entropy = word count × log2(word list size)

Utilizzo

Using the Toollect Password Generator requires no setup or registration. Follow these steps:

  1. Scegliere la modalità — Casuale o Frase d'accesso

    Select either Random or Passphrase using the tabs at the top of the tool.

  2. Configurare Casuale — Regolare lunghezza, selezionare set di caratteri

    Adjust the length slider (8-128 characters) and check or uncheck character sets: Uppercase, Lowercase, Numbers, Symbols. Optionally enable "Exclude ambiguous characters" to remove easily confused characters.

  3. Configurare Frase — Regolare numero parole, separatore, opzioni

    Adjust the word count slider (3-12 words). Select a word separator (Space, Hyphen, Underscore, Dot, or None). Optionally enable Capitalize, Add a random number, or Add a random symbol. Optionally enter custom words in the text area to replace the default word list.

  4. Generare — Cliccare su Genera

    A password or passphrase appears in the output area.

  5. Check strength — Review the strength indicator below the password to evaluate its security level.

  6. Copiare — Negli appunti

    Click Copy to copy the password to your clipboard, then paste it into your account registration or password manager.

  7. Clear to reset — Click Clear to reset the output and start over.

Tutorial

Scenario 1: Password casuale per social media

Apri il generatore. Lunghezza 16. Attiva maiuscole, minuscole, numeri. Escludi ambigui. Genera. Copia.

Scenario 1: Creating a random password for a social media account

  1. Open the Password Generator. The tool opens in Random mode by default.

  2. Set the length to 16 by dragging the slider. The current value displays next to the Length label.

  3. Ensure the following checkboxes are checked: A-Z (Uppercase), a-z (Lowercase), 0-9 (Numbers). Leave Symbols unchecked — many social media platforms accept alphanumeric passwords.

  4. Check "Exclude ambiguous characters" to prevent confusion between similar-looking characters like 1 (one) and l (lowercase L).

  5. Click Generate. A 16-character password appears in the output area. The strength indicator should display "Strong" or "Very Strong".

  6. Click Copy to copy the password. Paste it into your social media account's password field.

  7. Click Clear to reset when you are satisfied.

Scenario 2: Frase d'accesso per email

Passa alla modalità Frase. 5 parole. Spazio come separatore. Attiva capitalizzazione e numero. Genera.

Scenario 2: Creating a passphrase for your email account

  1. Switch to Passphrase mode by clicking the Passphrase tab.

  2. Set the word count to 5. A 5-word passphrase from the EFF word list provides approximately 51 bits of entropy.

  3. Select "Space" as the word separator for the classic xkcd-style passphrase format.

  4. Check "Capitalize each word" and "Add a random number". Leave "Add a random symbol" unchecked — most email services accept alphanumeric passwords with spaces.

  5. Click Generate. A passphrase like "Plank Lunch Quilt Ivory Sunset7" appears.

  6. Review the strength — it should show at least "Strong" for 5 words.

  7. Click Copy and use the passphrase for your email account. The spaces and capitalization make it easier to type correctly on both desktop and mobile devices.

Suggerimenti professionali

  • Usa 6-7 parole per la password principale

  • Adatta la lunghezza alla sensibilità dell'account

  • Usa parole personalizzate per frasi indimenticabili

  • Combine modes for Wi-Fi passwords: Generate a random password of 20+ characters for your Wi-Fi network. Wi-Fi passwords are entered once and stored on devices, so memorability is not important — maximum entropy is.

  • Generate multiple passwords at once: Click Generate repeatedly to produce several candidate passwords. Compare them and pick the one that is easiest for you to use while maintaining the desired strength level.

  • Use the strength indicator as a minimum threshold: Aim for at least "Strong" (70+ bits of entropy) for any password protecting sensitive data. "Very Strong" (100+ bits) is appropriate for encryption keys and master passwords.

Alternative

While the Toollect Password Generator excels at browser-based password creation with privacy-first processing, several alternatives exist for different use cases.

Strumento / Metodo Migliore per Limitazioni
Toollect Generatore Browser, frasi, privacy Internet per caricamento
Gestore integrato (Portachiavi iCloud, Google, Bitwarden) Sincronizzazione dispositivi Legato all'ecosistema
Diceware manuale Ambienti isolati Richiede dadi fisici
Command-line tools (openssl rand, pwgen) Scripted generation in development environments No GUI, requires terminal access, no strength visualization
xkcd-style method Creating memorable passphrases manually Relies on human randomness, which is predictable and biased
Online password generators Quick generation without installation Privacy risk — passwords are transmitted over the network

For most users who need instant, secure, and private password generation with the flexibility of both random and passphrase modes, the Toollect Password Generator offers the best balance of features, security, and convenience.

Risoluzione problemi

Problema Causa Soluzione
Caratteri ambigui Opzione disattivata Attivare esclusione
Debole se corta Lunghezza < 10 Aumentare lunghezza
Copia non funziona Problema permessi Usare Ctrl+C
Passphrase uses unexpected words Custom words field is empty, defaulting to EFF word list The tool defaults to the English EFF list. Fill in the custom words field with your own words
Cannot type in the output field The output field is read-only by design Click Generate to create a password, then use the Copy button
Generated password is rejected by a website Website has specific character restrictions Check the website's password policy and adjust character sets accordingly. Try disabling Symbols
Passphrase exceeds maximum length allowed by a service Word count or separator choices produce a very long string Reduce word count, use "None" separator, or switch to Random mode with a shorter length
The tool does not work offline The page must be loaded first while online Load the page while connected to the internet. Once loaded, it works offline for that session

Specifiche tecniche

The Toollect Password Generator is engineered for security, performance, and broad compatibility.

Performance Benchmarks

Length Generation Time Memory Usage
16 characters < 1 ms < 1 MB
64 characters < 1 ms < 1 MB
128 characters < 2 ms < 1 MB

Technical Details

  • Generatore casuale: crypto.getRandomValues() (API Web Crypto) — cryptographically secure, backed by operating system entropy
  • Elenco parole: EFF Short Word List #1 (1296 parole), embedded in the application code
  • Algoritmo mescolamento: Fisher-Yates (unbiased, O(n))
  • Calcolo robustezza: Entropy-based calculation: For random passwords, entropy = length × log2(charset size). For passphrases, entropy = word count × log2(1296).
  • Soglie: Debole 0-29, Discreta 30-49, Buona 50-69, Forte 70-99, Molto forte 100+ bits
  • Clipboard API: navigator.clipboard.writeText() with visual feedback
  • Event Model: Button click triggers generation; slider inputs update configuration in real-time

Browser Compatibility

Browser Minimum Version Status
Google Chrome 80+ Full support
Mozilla Firefox 75+ Full support
Apple Safari 13+ Full support
Microsoft Edge 80+ Full support
Samsung Internet 13+ Full support
Opera 67+ Full support

Privacy & Security

  • Zero data transmission: all password generation occurs in the browser's memory
  • No cookies, localStorage, or sessionStorage used
  • No analytics or tracking scripts on the tool page
  • Fully functional in offline mode after initial page load
  • No registration, login, or API keys required
  • Uses cryptographically secure random number generation (not Math.random())

Caratteristiche

  • Generazione di password casuali con lunghezza configurabile (8-128) e set di caratteri
  • Modalità frase d'accesso con elenco di parole EFF per password memorabili ma sicure
  • Supporto per parole personalizzate in qualsiasi lingua
  • Indicatore di robustezza in tempo reale basato sul calcolo dell'entropia
  • Generazione casuale crittograficamente sicura (crypto.getRandomValues)
  • 100% elaborazione lato client senza caricamento dati

Domande frequenti

Cos'è un generatore di password e perché dovrei usarlo?
Un generatore di password crea password forti e casuali resistenti a tentativi di indovinare e attacchi di forza bruta. L'uso di un generatore assicura di non dipendere da schemi deboli come parole del dizionario o compleanni.
Qual è la differenza tra modalità Casuale e Frase d'accesso?
La modalità Casuale genera una stringa di caratteri casuali. La modalità Frase d'accesso combina più parole in una frase più lunga ma più memorabile.
Questo generatore è sicuro?
Sì. Utilizza crypto.getRandomValues() dell'API Web Crypto, lo stesso standard usato dalle banche. Tutta l'elaborazione avviene nel tuo browser.
Can I use my own words for passphrases?
Yes. In Passphrase mode, you can enter your own words in the custom words field. The generator will randomly select from your words instead of the built-in word list. This lets you create passphrases in any language using words you will remember.
What password length should I use?
For most purposes, 12-16 characters provides strong security. For highly sensitive accounts, use 20+ characters. For passphrases, 5-6 words from the EFF short list (1296 words) gives approximately 50-60 bits of entropy, which is excellent security.
How is password strength calculated?
Strength is calculated using entropy (bits of uncertainty). For random passwords, it uses length × log2(charset size). For passphrases, it uses word count × log2(word list size). Higher entropy means stronger protection against brute-force attacks.
ESC