100% Free & Privacy-First Webmaster Suite

Cyber Security & Network Diagnostic Tools

Fast, lightweight, and dependable online diagnostic utilities crafted for developers, DevOps engineers, and security researchers.

⚡ REAL-TIME STREAM

Live Webhook & Request Bin

Zero-signup real-time HTTP inspector for Stripe/PayPal webhooks, mobile callbacks, and SSRF security auditing.

Real-Time HTTP Listen →

IP & Geolocation Lookup

Discover the geographical location, ISP, Autonomous System Number (ASN), and reverse DNS of any IPv4 or IPv6 target.

Network & Routing Inspect →

DNS Records Inspector

Fetch and verify authoritative A, AAAA, MX, TXT (SPF/DKIM/DMARC), CNAME, and NS records directly.

DNS Protocol Query →

SSL / TLS Certificate Audit

Inspect SSL/TLS certificate validity, remaining days before expiry, issuing authority, and cryptographic cipher suites.

TLS / HTTPS Verify →

HTTP Security Headers

Audit your website's HSTS, CSP, X-Frame-Options, and Permissions-Policy headers with actionable A+ to F grades.

Web Security Audit →

Password & Entropy Meter

Generate cryptographically secure passwords and calculate entropy bits alongside brute-force crack time estimates.

🔒 Client-Side Only Generate →

Hash Generator (MD5, SHA-256)

Instantly compute MD5, SHA-1, SHA-256, and SHA-512 cryptographic digests in your browser with zero latency.

🔒 0ms Latency Calculate →

Base64 / URL / Hex Converter

Encode and decode text between standard Base64, URL percent-encoding, and Hexadecimal representations.

🔒 UTF-8 Safe Convert →

JWT Decoder & Debugger

Decode and inspect JSON Web Tokens (JWT) into structured JSON headers, claims, and expiry timestamps.

🔒 Safe Parsing Decode →

IPv4 Subnet & CIDR

Calculate network address, broadcast IP, usable host range, wildcard mask, and total capacity for any CIDR prefix.

Network Utility Calculate →

Why cyber-tool.org? Fast, Reliable, and Privacy-Centric

In modern web engineering and infrastructure security, having instant, dependable utility tools is essential. cyber-tool.org is built adhering to two core standards: Zero Latency Execution and Client-Side Data Privacy.

Frequently Asked Questions (FAQ)

Are all tools on cyber-tool.org free?

Yes. All network, security, and cryptographic tools on cyber-tool.org are completely free with unlimited usage and no registration required.

Are my hashes and passwords stored or logged?

No. Cryptographic operations (Hashing, Base64, Passwords, JWT) execute 100% inside your browser using the Web Crypto API. Nothing is sent to our servers.