Private Random String Generator

Truly random.

Cryptographically secure strings.

0 bits of entropy · 0 character set · 0 characters
Separator
Batch generate
No upload
Works offline
No tracking

Need random string generation offline? The offline bundle generates unlimited strings without internet. $49 once.

Get Bundle →
// How it works

Three steps. Zero uploads.

01
Configure
Set length and character types: uppercase, lowercase, numbers, symbols, or custom sets.
02
Generate
A cryptographically random string is generated instantly in your browser.
03
Copy
Copy the string. Use as a password, API key, token, or test data.
// Why this is different

Generate secrets that stay secret.

Most online random generators send a request to a server to get your random data. fwip generates random strings using your browser's cryptographic API. Your passwords and tokens are never transmitted to anyone.

fwip works differently. The processing engine runs entirely in your browser. Your text is read from your device, processed on your CPU, and the result is saved back to your device. No server is involved. We literally cannot see your file.

Your generated string never leaves your browser. No server, no logging, no tracking.

No server processing

Everything runs on your device using WebAssembly. Your file never touches a network.

No account required

Drop a file. Get a result. No sign-up, no email, no password.

No subscription

Free in the browser. $99 once for the offline bundle. That's it. Forever.

Works offline

The desktop version works with no internet connection at all.

Use it free in your browser. Own it offline for $15. No subscription. Yours.
// How fwip compares

fwip vs the rest.

fwipRandom.orgLastPass Generator1Password Generator
Upload requiredNoNoNoNo
Account requiredNoNoYes (free tier)Yes
Price$15 / toolFree / paid APIFree / $3/mo ($36/yr)$2.99/mo ($36/yr)
Files leave deviceNeverYes — server generatedYes — cloud processedYes — cloud processed
Works offlineYesNoNoApp only
Batch processingOffline bundleAPI onlyNoNo
// Questions

Frequently asked.

Is this random generator secure?▾
Yes. It uses your browser's Web Crypto API (crypto.getRandomValues) which provides cryptographically secure random data. This is the same source browsers use for secure connections.
Are the generated strings sent to a server?▾
No. Everything is generated locally in your browser. Your passwords, tokens, and strings are never transmitted, logged, or stored by anyone.
Can I generate UUIDs?▾
Yes. fwip can generate UUID v4 (random) strings in standard format.
What character sets are available?▾
Uppercase (A-Z), lowercase (a-z), numbers (0-9), symbols (!@#$%...), and custom character sets. Mix and match to fit your requirements.
Can I use this for passwords?▾
Yes. A random string of 16+ characters with mixed case, numbers, and symbols makes a strong password. Since the generation is local and cryptographically secure, it's safer than most online password generators.
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