Skip to main content

Password Generator – Strong Random Passwords & Passphrases (Free Online)

Password Generator – Strong Random Passwords & Passphrases

Use this free Password Generator to create strong, random passwords or memorable passphrases. Choose length and character sets, avoid look-alike characters, and view entropy and crack-time estimates. Everything runs in your browser with secure randomness.

Password Generator

Only used if “Symbols” is checked
Entropy: — bits • Pool: — • Est. crack time: —

Passphrase Generator

Entropy: — bits • Word list: — words • Est. crack time: —

Why Use This Password & Passphrase Generator?

  • Secure randomness: uses crypto.getRandomValues, not Math.random().
  • Customizable: length, symbols, avoid look-alikes, require each set.
  • Strength insights: entropy estimate and crack-time approximation.
  • Passphrases: easy to remember yet strong, with separators and optional digit.
  • Private: runs entirely in your browser; nothing is saved or uploaded.

FAQ – Password Generator

Is this secure enough for real accounts?

Yes, it uses the browser’s cryptographic RNG. For best results, use 16+ characters or a 5+ word passphrase and store it in a reputable password manager.

What does “avoid similar characters” do?

It removes look-alike characters like O/0 and l/1/I to reduce confusion when typing or reading passwords.

What does the entropy value mean?

It’s the estimated unpredictability (bits). Each extra bit doubles the guess space. Around 80+ bits is considered strong for general use.

Do you send or store any data?

No. Everything runs locally on your device; no data leaves your browser.

Labels:

Comments

Post a Comment

Popular posts from this blog

Color & Gradient Generator – Hex, RGB, HSL, Palettes & CSS (Free Online)

Color & Gradient Generator – HEX, RGB, HSL, Contrast & CSS Use this free Color & Gradient Generator to pick colors, convert HEX / RGB / HSL , check contrast (WCAG) , create linear/radial gradients , copy CSS , and export palette swatches. Everything runs in your browser—no uploads. Contents: Color Picker • Contrast Checker • Gradient Builder • Palette & Export • FAQ Pick & Convert Colors Color HEX RGB HSL Copy HEX Copy RGB Copy HSL Random Add to Palette Contrast Checker (WCAG) Foreground Background Check Contrast Ratio: — • AA (normal): — • AAA (normal): — • AA (large): — • AAA (large): — Preview text on background Gradient Builder (Linear / Radial) Type ...
Post a Comment
Read more

URL Encoder & Decoder – Free Online Tool (Encode & Decode URLs)

URL Encoder & Decoder – Free Online Tool Use this free URL Encoder & Decoder to safely encode special characters in text or links, or decode encoded URLs back to readable text. Everything runs in your browser—secure and private. Contents: URL Encoder & Decoder • Examples • FAQ URL Encoder & Decoder Input (text or URL) Encode Decode Copy Output Output Examples Text: Hello World! → Hello%20World%21 Symbols: a+b=c → a%2Bb%3Dc Full URL: https://rtools.xyz/page?search=blue sky → https://rtools.xyz/page?search=blue%20sky FAQ – URL Encoder & Decoder Why do I need URL encoding? URLs can’t contain spaces or unsafe characters. Encoding ensures links are valid and safe for browsers and servers. Can I decode multiple lines at once? Yes. Paste any long string, and the tool decodes it fully. Is this the same as HTML escaping? No. URL encoding is for query stri...
Post a Comment
Read more

JSON Formatter & Validator – Pretty Print, Minify, Sort Keys (Free Online)

JSON Formatter & Validator – Pretty Print, Minify, Sort Keys Format and validate JSON instantly. This free tool can pretty-print , minify , sort keys , and lets you copy or download the result. Everything runs in your browser—no uploads. Contents: JSON Formatter • Tips • FAQ JSON Formatter & Validator Format Minify Sort Keys (A→Z) Validate Copy Output Download .json Indent: 2 4 Tab Input JSON Or drop a file anywhere in this box Output Tips Validate first if you’re unsure the JSON is valid. Use Sort Keys before running a diff in Git or comparing configs. Switch indentation between 2 / 4 / Tab to match your project style. Drag & drop a .json file directly into the input area. FAQ – JSON Formatter & Validator Wh...
Post a Comment
Read more