Free Password & Security Tools
Generate strong passwords and memorable passphrases, check how strong a password really is, create secure random tokens, and compute file or text hashes.
Everything uses your browser's cryptographically secure random number generator (Web Crypto). Nothing you generate or type is sent anywhere.
9 free tools · No sign-up · Works on phones and computers
All security tools
- Password GeneratorPopularCreate strong, random passwords with the length and characters you choose.
- Passphrase GeneratorMake memorable passphrases from random words, like correct-horse-battery.
- Password Strength CheckerSee how strong a password is and how long it could take to crack.
- Hash GeneratorPopularGenerate SHA-256, SHA-512, SHA-1 and MD5 hashes of any text.
- Random Token GeneratorGenerate secure random strings, API keys and secrets in hex, Base64 or custom sets.
- PIN GeneratorRandom 4- to 12-digit PINs that avoid easy guesses like 1234 and 0000.
- 2FA TOTP Code GeneratorGenerate time-based one-time codes from a 2FA secret, with a setup QR code.
- Text Encryption & DecryptionEncrypt and decrypt text with a password using AES-256-GCM, in your browser.
- File Encryption & DecryptionPassword-protect any file with AES-256-GCM — encrypted on your device.
Security guides
Step-by-step help that goes with these tools.
Security tools: common questions
Is it safe to generate passwords in a browser?
Yes, when it's done locally. These tools use crypto.getRandomValues and never send the password over the network. Store passwords in a password manager.
Do you log what I type into the strength checker?
No. The check runs entirely on your device.
Explore other categories
- 41 tools
Calculators
Percentages, algebra, statistics, geometry and everyday math.
- 22 tools
Finance
Loans, mortgages, interest, savings and salary in plain numbers.
- 30 tools
Converters
Length, weight, temperature, area, volume, speed and more.
- 42 tools
Text
Count words, change case, clean up and compare text.
- 61 tools
Developer
Format, validate, convert and encode code and data.
- 33 tools
Images
Compress, resize, crop and convert photos in your browser.
- 35 tools
PDF
Merge, split, rotate and convert PDF files.
- 15 tools
Audio
Trim, join, speed up and clean up audio, and record your voice.
- 11 tools
Files
Zip, unzip, compress, rename and inspect files.
- 9 tools
SEO
Meta tags, schema, robots.txt, sitemaps and SERP previews.
- 16 tools
Web
QR codes, URL tools, UTM links and browser info.
- 31 tools
Design
Colors, palettes, gradients, contrast and CSS helpers.
- 29 tools
Business
Invoices, receipts, margins, markup, VAT and ROI.
- 29 tools
Date & Time
Age, date differences, time zones, timers and clocks.
- 8 tools
Health
BMI, calories, body fat, water intake and sleep.
- 52 tools
Education
Grades, GPA, physics, chemistry, engineering and biology.
- 15 tools
Everyday
Random pickers, dice, a notepad, typing test and more.
- 5 tools
Smart Text
Summarize, extract keywords, analyze tone and count tokens.