🛠️ Free Security Tools

Fifty-eight tools, no signup required. Checklists, calculators, generators, live feeds, simulations, and 30+ network/security utilities — built by practitioners across SOC, GRC, pen testing, and DFIR. Everything runs in your browser.

100+
Tools
6
Checklists
6
Calculators
10
Generators
100%
Client-Side
All 100+ Checklists 6 Calculators 3 Generators 4 Simulations 3 DNS & Domain 3 Live Intel 3 Analyzers 3 Games & Demos 3 Utilities 70+
Checklists
Checklist🦠

Ransomware Readiness Checklist

10 questions on backups, segmentation and response — score plus a downloadable gap list.

Checklist🛡️

Cyber Insurance Readiness Checker

The controls insurers actually look for — MFA, backups, EDR — scored against typical underwriting questions.

Checklist🔏

DPDP Act Quick-Check

A fast gut-check on how your personal-data handling stacks up against India's DPDP Act, 2023.

Checklist🔐

MFA & Access Control Self-Assessment

Eight questions on MFA coverage, privileged access and access reviews — identity-focused.

Checklist📊

SOC-CMM Maturity Assessment

15-question, 5-domain assessment with instant gauge scoring across people, process, technology, detection, and response.

Checklist📈

Industry Maturity Benchmark

Already have a SOC-CMM score? See how it compares to illustrative ranges for your industry.

Calculators
Calculator⏱️

CERT-In Reporting Deadline Calculator

Enter your detection time, get the exact six-hour cutoff and a who-to-call checklist.

Calculator💰

Data Breach Cost Estimator

Industry and record count in, a rough breach-cost range out — useful for budget conversations.

Calculator👥

SOC Staffing Calculator

Alert volume and coverage hours in, an estimated analyst headcount for 24×7 coverage out.

Generators
Generator📋

Vendor Risk Questionnaire Generator

Pick your industry, get a tailored third-party security questionnaire to send to vendors.

Generator🌳

IR Contact Tree Builder

Fill in your roles and names, get a printable escalation tree for the wall.

Generator📜

Security Policy Pack Generator

Pick which policies you need, get downloadable starter outlines for each.

Generator🎭

Tabletop Exercise Scenario Picker

Choose your top concern, get a free scenario script to run with your IR team.

Simulations
Simulation🎣

Phishing Email Simulator

A realistic inbox view — click the parts of the email that gave the scam away.

Simulation🖥️

Spot the Fake Login Page

Find the tells on a spoofed login page before you'd ever type a password.

Simulation📞

Vishing Call Simulator

A simulated "IT support" call — pick your responses and see what gave the scam away.

DNS & Domain
DNS & Domain📧

Email Spoofing Risk Checker

SPF, DKIM and DMARC analyzed instantly — see how easy it'd be to spoof email from your domain.

DNS & Domain🔍

Typosquat & Lookalike Domain Detector

Generates likely typosquat variants of your domain and checks which are actually registered.

DNS & Domain📅

Domain Age Checker

See exactly when any domain was registered — a brand-new domain is a classic scam signal.

Live Intel
Live Intel🚨

CISA Known Exploited Vulnerabilities

Vulnerabilities actively being exploited right now — refreshed from CISA's public catalog.

Live Intel👁️

Live Phishing Domain Watcher

Watches Certificate Transparency logs in real time for newly-issued lookalike-brand certs.

Live Intel🗺️

Global Threat Activity Map

Real, recently-reported malicious IPs, geolocated and visualised — refreshed hourly.

Analyzers
Analyzer📨

Email Header Analyzer

Paste raw headers, get SPF/DKIM/DMARC results and the server hop path — parsed in your browser.

Analyzer📦

Dependency Vulnerability Checker

Paste your package.json or requirements.txt, checked against Google's free OSV.dev database.

Analyzer🔌

Port & Protocol Reference

Searchable reference of common ports, what runs on them, and why each one matters.

Network Tools
Live Intel🌐

Bulk IP / Domain Lookup

Lookup up to 100 IPs or domains at once — Country, Region, City, ISP, ASN, Lat/Long. Export CSV, JSON, XML or YAML.

Network🌐

DNS Lookup

Query DNS records (A, AAAA, MX, NS, TXT, CNAME, SOA) for any domain.

Network🔄

Reverse DNS

Convert IP address to hostname via PTR record lookup.

Network📍

IP Lookup

Get ISP, ASN, and geolocation for any IP address.

Calculator🧮

Subnet Calculator

Calculate network, broadcast, hosts from CIDR notation.

Reference🔌

TCP Port Info

Common port reference - find what service runs on any port.

Security Tools
Analyzer🔐

JWT Decoder

Decode and inspect JWT tokens - header and payload.

Generator🔒

Hash Calculator

Generate SHA-256, SHA-1, and MD5 hashes from text.

Generator🔑

Password Generator

Generate secure random passwords with custom options.

Generator🆔

UUID Generator

Generate random UUIDs (v4) instantly.

Analyzer🛡️

IOC Defanger/Refanger

Defang or refang IPs and URLs for safe sharing.

Converters
Converter📝

Base64 Encode/Decode

Convert text to/from Base64 encoding.

Converter🔗

URL Encode/Decode

Encode or decode URL-encoded strings.

Converter🔢

Hex Converter

Convert text to/from hexadecimal.

Converter💻

Binary Converter

Convert text to/from binary.

Converter⏱️

Epoch Converter

Convert Unix timestamps to dates and vice versa.

Formatter📋

JSON Formatter

Format and validate JSON data.

IP Tools
Converter🔢

IP to Binary

Convert IP address to binary format.

Converter🔣

IP to Hex

Convert IP address to hexadecimal.

Converter🔢

IP to Decimal

Convert IP address to decimal number.

Analyzer📊

IP Class Checker

Determine the class (A, B, C, D, E) of an IP address.

Analyzer🏠

Private IP Check

Check if an IP address is private or public.

Client Info
Demo🖥️

Screen Resolution

Detect your screen size, viewport, and pixel ratio.

Analyzer🌐

User Agent Parser

Parse and analyze user agent strings.

Demo📱

Browser Info

Detailed browser capabilities and settings.

Date & Time
Live🌍

World Clock

Current time in major cities around the world.

Calculator📅

Date Calculator

Add or subtract days from a date.

Calculator🎂

Age Calculator

Calculate age from date of birth.

Generators
Generator📱

QR Code Generator

Generate QR codes from text or URLs.

Tester🔍

Regex Tester

Test regular expressions against sample text.

Converter🎨

Color Picker

Pick colors and convert between HEX, RGB, HSL.

Games & Demos
Demo🕵️

What This Website Already Knows About You

Live browser exposure demo — see your own fingerprint surface the instant you load the page.

Game⛓️

Build the Kill Chain

Drag the stages of a cyber attack into the correct order — a quick game, not just a quiz.

Game🚩

Operation Foothold — Mini CTF

A real three-clue capture-the-flag challenge hidden in page source, HTTP headers, and cookies.

🔒

Tool