BuBird Security Tools · 30 Free Security Utilities

Free Online Security Tools

Use BuBird Security Tools to generate strong passwords, check breaches, validate SSL certificates, analyze DNS security, scan suspicious links, create DMARC records, encrypt notes and build privacy policies. Fast browser-based utilities with no signup required.

30 security toolsNo signup requiredBrowser-based local toolsFast resultsMobile friendlyNo uploads to BuBird servers for local tools
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All Security Tools30 tools
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Strong Password Generator
Generate strong random passwords with length, symbols, numbers and uppercase options.
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Password Strength Checker
Check password strength, entropy, common patterns and estimated crack time locally where supported.
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Have I Been Pwned Checker
Check if an email or password appears in known data breaches using privacy-preserving breach checks where supported.
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SSL Certificate Checker
Check SSL/TLS certificate status, issuer, expiry date and HTTPS configuration for a domain.
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DNS Security Lookup
Check DNS security records including SPF, DMARC, DKIM, MX, TXT and related domain settings.
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DMARC Record Generator
Generate DMARC DNS records with p=none, quarantine or reject policy options.
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SPF Record Checker
Validate SPF records and detect common email authentication misconfigurations.
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Malware Link Scanner
Check suspicious URLs against security signals and threat intelligence sources where supported.
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Phishing Link Checker
Check URLs for phishing indicators, suspicious patterns and deceptive domain signals.
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IP Address Checker
View your public IP address and basic location, ISP and timezone signals.
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VPN & Proxy Detector
Check if an IP address appears to be a VPN, proxy, Tor exit node or data center.
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WHOIS Domain Lookup
Look up WHOIS domain information such as registrar, dates and nameserver details where available.
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Blacklist IP Checker
Check if an IP address appears on spam blacklists or DNSBL reputation lists.
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WAF Detector
Detect common Web Application Firewall signals such as Cloudflare, AWS WAF, Sucuri and similar services.
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Port Scanner
Check common open ports for domains or IPs you own or have permission to test.
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Subdomain Enumerator
Find common subdomains for a domain you own or have permission to analyze.
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MAC Address Vendor Lookup
Look up device vendor information from a MAC address OUI prefix.
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Base64 Encode / Decode
Encode and decode Base64 text, URL-safe Base64 and Unicode strings.
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File Checksum Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 file checksums to verify file integrity.
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Secure Note Encryptor
Encrypt and decrypt private notes in your browser using password-based encryption where supported.
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Hash Cracker (MD5/SHA1)
Check common MD5 or SHA1 hash values against sample dictionary lookups for learning and authorized recovery only.
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CSP Header Generator
Build Content Security Policy headers for scripts, styles, images, fonts and other directives.
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CSR Generator
Generate OpenSSL command helpers and CSR configuration templates for SSL certificate requests.
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SSH Key Generator
Generate SSH key command templates and learn safe SSH key setup practices.
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.htaccess Generator
Create Apache .htaccess rules for redirects, HTTPS, security headers and access control.
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Robots.txt Generator
Generate robots.txt rules with crawl directives and sitemap references.
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Privacy Policy Generator
Create a basic privacy policy template for websites and apps. Review before publishing.
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Cookie Policy Generator
Create a cookie policy template for websites. Review legal requirements before publishing.
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Terms & Conditions Generator
Create a terms and conditions template for websites or apps. Review before publishing.
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Temp Mail Generator
Generate temporary email aliases where supported for testing and spam reduction.

Safe-Use Guidelines

To protect internet infrastructure and maintain privacy, please follow these safety and authorization guidelines.

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Port Scanner
Only scan domains, IP addresses or systems that you own or have permission to test.
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Subdomain Enumerator
Use this tool only for domains you own, manage or have permission to analyze.
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Link Scanners
Do not open suspicious links directly. Use the scanner results as signals, not a guarantee.
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Hash Cracker
Use only for your own hashes, learning or authorized recovery. Do not use it to access accounts or data you do not own.
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Policy Generators
Templates are for general information. Review with a qualified legal professional before publishing for legal compliance.
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Have I Been Pwned Checker
If password checking uses k-anonymity, only a partial hash prefix is sent to the breach API. Do not send plaintext passwords to external services.

Built for Safer Digital Workflows

BuBird Security Tools brings together 30 utilities for password safety, breach checks, SSL validation, DNS security, phishing checks, email authentication, encryption helpers, policy templates and website security reviews. Use them for learning, troubleshooting and everyday security workflows — no signup required.

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Browser-Based Local Tools
Many tools process inputs locally in your browser without uploading data to BuBird servers.
Fast Security Checks
Check passwords, SSL, DNS, phishing URLs, IP reputation and policy templates quickly.
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No Signup Required
Use security tools without creating an account.
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30 Security Tools
Access password, lookup, encryption, certificate, DNS, email security and policy tools from one page.

Tools for Security, DevOps and Web Teams

Whether you're a security professional, DevOps engineer, web developer, system admin, business owner, or student — BuBird Security Tools fit your daily workflow.

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Security Professionals
Check breach exposure, scan suspicious links, review IP reputation, validate SSL and inspect WAF signals.
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DevOps Engineers
Generate DMARC, CSP, CSR, .htaccess and robots.txt configurations for safer deployments.
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Web Developers
Validate SPF, DNS security, SSL certificates, phishing indicators and website policy templates.
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System Admins
Check ports, DNS records, WHOIS information, subdomains, IP reputation and MAC vendor details.
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Small Business Owners
Generate password, cookie, privacy and terms templates, and check website security basics.
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Students & Learners
Learn password safety, hashing, Base64, DNS security, SSL, DMARC, SPF and privacy fundamentals.
🔒 Privacy First
Privacy-First Security Tools
Local tools such as Password Generator, Password Strength Checker, Base64 Encode / Decode, File Checksum Generator, Secure Note Encryptor and policy generators can run in your browser without uploading data to BuBird servers. Lookup tools such as HIBP Checker, IP Checker, VPN Detector, SSL Checker, WHOIS, DNS Security Lookup, Malware Link Scanner and Blacklist IP Checker may contact external data sources or the domain, IP or URL you enter to complete the requested check.
Local Processing for Local Tools
No BuBird Server Uploads for Local Tools
Lookup Tools Use Entered Domains, IPs or URLs
No Signup Required

Frequently Asked Questions

Yes. BuBird Security Tools are free to use and do not require signup.
Local tools such as password generation, Base64 encoding, file checksums, secure notes and policy generators can run in your browser without uploading data to BuBird servers. Lookup tools may contact external data sources or the domain, IP or URL you enter to complete the requested check.
BuBird includes tools for password generation, password strength checks, breach checks, SSL certificates, DNS security, phishing links, malware links, WHOIS, DMARC, SPF, WAF detection, Base64, checksums, secure notes and website policies.
Only scan domains, IP addresses or systems that you own or have permission to test. Do not use security tools to probe systems without authorization.
The password generator should run in the browser and use browser-supported secure randomness where implemented. Generated passwords should not be uploaded or stored by BuBird.
If password checking is supported through k-anonymity, only a partial hash prefix should be sent to the breach API, not the full password. Do not send plaintext passwords to external services.
No. Cookie Policy, Privacy Policy and Terms & Conditions generators provide general templates only. Review them before publishing and consult a qualified professional for legal compliance.
Yes. BuBird Security Tools are designed to work in modern mobile and desktop browsers.

Free Online Security Tools — Complete Suite for Digital Protection

BuBird Security Tools is a comprehensive collection of 30 free, browser-based security utilities designed for security professionals, DevOps engineers, web developers, system administrators, business owners, and students. Every tool processes your data locally without any server involvement, ensuring complete privacy for sensitive passwords, keys, and configurations.

From generating cryptographically secure passwords and checking data breaches to creating DMARC records, validating SSL certificates, scanning for malware links, and encrypting private notes with AES-256 — our security tools cover every aspect of modern digital protection. No software installation, no account creation, and no subscription fees — ever.

Tools Available in This Suite

  • Strong Password Generator & Password Strength Checker
  • Have I Been Pwned (HIBP) Breach Checker
  • IP Address Checker & VPN / Proxy Detector
  • SSL Certificate Checker & Malware Link Scanner
  • Phishing Link Checker & Port Scanner
  • DNS Security Lookup & WHOIS Domain Lookup
  • Hash Cracker (MD5/SHA1) & Base64 Encoder/Decoder
  • MAC Address Vendor Lookup & Subdomain Enumerator
  • CSP Header Generator & SSH Key Generator
  • CSR Generator & .htaccess Generator
  • Robots.txt Generator & DMARC Record Generator
  • SPF Record Checker & WAF Detector
  • Cookie Policy & Privacy Policy Generators
  • Terms & Conditions Generator & Temp Mail Generator
  • Secure Note Encryptor (AES-256) & File Checksum Generator