Security Tools
Professional security and privacy tools for developers, testers, and users. Generate strong passwords, verify email addresses, check IP information, create test data, and more. 100% free with instant results. No signup needed.
eSign Document
Add a digital signature to your documents online
Protect PDF
Add, remove, or change password protection on PDF files
Unlock PDF
Remove password protection from PDF files
Image Metadata Remover
Strip EXIF data and metadata from images for privacy
Image Metadata Viewer
View EXIF data, camera info, and GPS location from photos
HTTP Header Checker
View HTTP response headers and security analysis for any URL
Base64 Encoder/Decoder
Quickly encode data to Base64 or decode it back
UUID Generator
Generate universally unique identifiers (UUIDs)
My IP Address
Instantly check your public IP address
DNS Lookup
Perform a DNS lookup to check records for any domain
Password Generator
Create strong, random, and secure passwords
Fake Data Generator
Generate fake names, addresses, and emails for testing
Email Verifier
Check if an email address is valid and can receive mail
JWT Decoder
Decode and inspect JSON Web Token header, payload, and claims
JWT Generator
Create signed JWT tokens with custom claims and HMAC algorithms
Password Strength Checker
Test password strength with entropy score and crack time estimate
Hash Compare
Compare hash values or generate MD5, SHA-256, SHA-512 hashes
UUID Validator
Validate UUID format, detect version, and generate new UUIDs
JWT Expiry Checker
Check JWT expiration with live countdown and lifespan tracking
Security Tools
Our comprehensive suite of free online security and privacy tools is designed to help developers, testers, and users maintain security best practices. Whether you need to generate secure passwords, verify email addresses, check IP information, or create test data for development, these tools provide professional-grade security utilities. All tools prioritize privacy and security, with client-side processing wherever possible.
Key Features of Security Tools
Everything you need for professional security tools
Strong Security
Generate cryptographically secure passwords and encrypt sensitive data with industry-standard algorithms
Email Validation
Verify email addresses with syntax checking, domain validation, and deliverability testing
IP Intelligence
Get detailed information about IP addresses including geolocation, ISP, and network details
Test Data Generation
Create realistic fake data for testing applications, forms, and database population
Privacy First
All sensitive operations happen in your browser - no data is sent to external servers
Always Free
All security tools are completely free with no limitations, subscriptions, or hidden costs
How to Use Security Tools
Follow these simple steps to get started
Choose Security Tool
Select the appropriate tool for your needs - password generation, email validation, IP lookup, or data testing
Configure Options
Customize settings like password length, character types, data formats, or validation parameters
Get Results
Receive instant results with copy functionality. Generate multiple variations or validate in bulk as needed
Pro Tips
- Use passwords with 16+ characters including symbols for maximum security
- Verify email addresses before sending to reduce bounce rates
- Check IP geolocation for security monitoring and fraud detection
- Generate fake data for testing without exposing real user information
- Never reuse passwords across different services or applications
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Discover other powerful tools to boost your productivity
Frequently Asked Questions
Everything you need to know about Security Tools
Yes! All our security tools including password generator, email verifier, IP address lookup, and fake data generator are 100% free with no hidden charges, subscriptions, trial periods, or usage limitations. You can use them unlimited times without signing up or creating an account.
Our password generator creates cryptographically secure random passwords using JavaScript's crypto.getRandomValues() API. You can customize length (8-128 characters), include uppercase, lowercase, numbers, and special symbols. Passwords with 16+ characters including all character types are virtually uncrackable. All generation happens locally in your browser - passwords are never sent to servers or stored anywhere.
Our email verifier validates email addresses through multiple checks: syntax validation (RFC 5322 standard), domain DNS validation, MX record verification, and disposable email detection. It checks if the email format is correct, the domain exists, and can receive mail. This helps reduce bounce rates for email campaigns, validate form inputs, and prevent fake email signups.
The IP address info tool provides comprehensive details about any IP address including: geolocation (country, city, region), ISP/organization, timezone, coordinates (latitude/longitude), connection type, and domain information. It works for both IPv4 and IPv6 addresses. Useful for security monitoring, fraud detection, content localization, and network diagnostics. You can check your own IP or any public IP address.
Yes! Privacy is our top priority. The password generator operates entirely client-side in your browser - passwords are generated locally and never transmitted anywhere. Email verification uses secure API calls without storing data. The fake data generator creates random information client-side. We never log, store, or share your inputs. For maximum security, tools process data locally whenever possible.
The fake data generator creates realistic but completely fictional test data including names, addresses, emails, phone numbers, and more. It's perfect for: populating development databases, testing application forms, QA and software testing, creating demo data, API testing, and protecting real user privacy during development. All generated data is random and not associated with real people or businesses.
No account or signup needed! All security tools (password generator, email verifier, IP lookup, fake data generator) work instantly without registration. Simply open the tool and start using it. No email required, no personal information needed, and no tracking. We believe in frictionless access to security utilities - just open and use.
Yes! All security tools are fully responsive and optimized for mobile devices, tablets, and desktops. Whether you're using iPhone, Android, iPad, or any smartphone, the tools work perfectly with touch interfaces. Generate passwords on the go, verify emails from your phone, or check IP addresses from any device. The responsive design ensures great experience on any screen size.
Still need help?
Can't find the information you're looking for? Our support team is ready to assist you.
Contact SupportSecurity Tools
Free security tools: password generator, email verifier, IP lookup, fake data generator, and encryption utilities. Private and secure.
About Security Tools on Rune
Security tools on Rune help you generate strong passwords, encrypt text, create hash digests, verify emails, and generate fake data for testing. Each tool is built with privacy as the default, so your sensitive data never leaves your browser.
Developers testing authentication flows, users creating secure passwords, and teams that need dummy data for staging environments all benefit from these utilities.
What You Can Do with Security Tools
- Generate cryptographically strong passwords with customizable rules
- Encrypt and decrypt text with AES and other standard algorithms
- Create MD5, SHA-256, and other hash digests for file and data verification
- Generate realistic fake data for testing without exposing real user information
- Verify email addresses and check IP address details
Why Use Rune for Security Tools
Security tools must be trustworthy. Rune runs every security tool client-side in your browser. Passwords are generated locally, encryption happens on your device, and hashes are computed without any server round-trip.
Explore all 19 security tools available on Rune, all free, private, and ready to use. Browse all tools