// free tools by W-Logic LLC

Security & Network
Tools That Actually Work.

Built by offensive security professionals. No sign-up. No tracking. No paywalls. All calculations run client-side — your data never leaves your browser.

// client-side only // no data collected // no sign-up required
10+
Tools Available
0
Data Collected
100%
Client-Side Execution
Free.
Always, No Catch
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// tool directory

Free Tools, No Strings

Each tool is a standalone utility. Pick one, use it, close the tab. Nothing is tracked, stored, or transmitted.

// live
Subnet Calculator
Enter any IP + CIDR prefix. Instantly get network address, broadcast, usable range, wildcard mask, subnet mask, host count, and binary visualizer. IPv4 & IPv6 supported.
IPv4 IPv6 CIDR Networking
→ Launch tool
// live
JWT Decoder
Paste any JSON Web Token. Decode the header, payload, expiry, and algorithm. Flags weak algorithms (none, HS256 with blank secret), expired tokens, and nbf violations. 100% client-side.
JWT OAuth Auth Pentest
→ Launch tool
// live
What Is My IP
Your public IP address, ASN, ISP, geolocation, reverse DNS, and IPv6 status — instantly. Also look up any IP. All data via ipapi.co; no logging on our end.
IPv4 IPv6 ASN rDNS
→ Launch tool
{ }
// live
JSON Formatter
Paste any JSON — pretty-print with syntax highlighting, validate, minify, or explore as a collapsible tree. Two-pane editor. Ctrl+Enter to format. 100% client-side.
JSON Validate Minify DevOps
→ Launch tool
// live
Hash Identifier
Paste any hash string. Identify MD5, SHA-1, SHA-256, NTLM, bcrypt, LM, and 40+ algorithms with confidence scoring.
MD5 SHA-256 NTLM bcrypt
→ Launch tool
MD5 SHA-256 NTLM bcrypt
// live
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512, and NTLM hashes live as you type. Hex, Base64, and Base64URL output via WebCrypto.
MD5 SHA-512 NTLM WebCrypto
→ Launch tool
WebCrypto Hashing CTF
// live
CRON Expression Builder
Build and validate CRON expressions visually. Plain-English to crontab syntax. Unix, Quartz, and AWS EventBridge. 16 presets.
DevOps Sysadmin AWS Unix
→ Launch tool
DevOps Sysadmin Scheduling
// live
Encoder / Decoder
Base64, URL encode/decode, hex, HTML entities, Unicode escape, ROT13 — all in one tool. Useful for web testing and CTF.
Base64 URL Encode Hex ROT13
→ Launch tool
Base64 URL Encode Hex Pentest
// live
Password Generator
Cryptographically secure passwords and passphrases. NIST SP 800-63B compliant. Entropy meter included. Nothing transmitted.
NIST Entropy Passphrase WebCrypto
→ Launch tool
NIST Entropy Passphrase
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// why these tools exist

Built by a Practitioner,
for Practitioners.

Most free tools online are bloated, ad-heavy, or send your data to a server. These don't. Every tool runs entirely in your browser.

Privacy by Architecture
Every tool computes client-side. Your IP addresses, hashes, and passwords are processed in JavaScript in your browser tab — nothing touches a server.
No Friction
No account creation. No email. No cookie consent walls beyond what's legally required. Tools load, you use them, you leave.
Accurate by Default
Built and tested by an OSCP/CRTO/CRTE-certified offensive security consultant who uses these calculations daily in red team operations.
Built by W-Logic
W-Logic LLC is an offensive security consultancy specializing in red team operations, Active Directory attack chains, and Azure identity attacks. These tools are a side project — and they're free.
w-logic-tools — privacy model
→ cat privacy_model.txt [+] Data collected by w-logic.net: none [*] IP addresses processed: client-side JavaScript only [*] Hashes processed: client-side JavaScript only [*] Passwords generated: window.crypto.getRandomValues() — never transmitted [+] Server logs: standard nginx access logs (IP + path, no query strings) [*] Analytics: none (no GA, no Plausible, no Mixpanel) [*] Ads: Google AdSense (standard ad network — see Google's privacy policy) [+] Cookies: AdSense only, per GDPR/CCPA requirements
→

Need more than a free tool?

W-Logic LLC provides offensive security consulting — red team operations, Active Directory attack chains, Azure/Entra ID assessments, and purple team exercises. Based in Columbia, MO. Engagements available nationwide.

→ W-Logic.com Schedule a Call