# IPTool

> Free online toolkit for IP, domain, and network analysis. No registration, no ads, no tracking beyond basic analytics.

Website: https://iptool.net.ua
Languages: Ukrainian (default), English, Polish

## Tools

### Network Information
- [IP Lookup](https://iptool.net.ua/en/info/ip): GeoIP lookup, ISP, ASN, PTR, abuse contact for any IPv4/IPv6 address
- [Domain Info](https://iptool.net.ua/en/info/domain): DNS records (A, AAAA, MX, NS, TXT, SOA, CNAME), WHOIS data
- [ASN Info](https://iptool.net.ua/en/info/as): Autonomous System details - name, prefixes, peers, upstream/downstream
- [MAC Vendor](https://iptool.net.ua/en/info/mac): Identify device manufacturer from MAC address (OUI database)
- [IP Country Networks](https://iptool.net.ua/en/networks): Browse IPv4/IPv6 ranges allocated to each country (RIR data)
- [Network Stats](https://iptool.net.ua/en/networks/stats): IPv4/IPv6 allocation statistics by country

### Network Tools
- [Ping](https://iptool.net.ua/en/tools/ping): ICMP ping to any host, round-trip time
- [Port Check](https://iptool.net.ua/en/tools/port-check): TCP port scanner - check if ports are open on a remote host
- [Email Check](https://iptool.net.ua/en/tools/email-check): Validate email address - DNS, MX, SMTP verification
- [Spam Blacklist Check](https://iptool.net.ua/en/tools/spam): Check if an IP is listed on DNS-based blacklists (DNSBL)

### Calculators
- [IPv4 Calculator](https://iptool.net.ua/en/calculators/ipv4): Subnet calculator - CIDR, netmask, address range, host count
- [IPv6 Calculator](https://iptool.net.ua/en/calculators/ipv6): IPv6 network calculator - prefix, range, abbreviated/expanded forms
- [Uptime Calculator](https://iptool.net.ua/en/calculators/uptime): Convert availability percentage to downtime (yearly/monthly/weekly)
- [Unix Time Converter](https://iptool.net.ua/en/calculators/unix-time): Convert UNIX timestamps to human-readable dates and back
- [Crontab Generator](https://iptool.net.ua/en/calculators/crontab): Visual cron expression builder with next-run preview
- [chmod Calculator](https://iptool.net.ua/en/calculators/chmod): File permission calculator - numeric and symbolic notation
- [Data Transfer Time](https://iptool.net.ua/en/calculators/data-transfer-time): Estimate transfer duration for a given file size and bandwidth
- [Hash Generator](https://iptool.net.ua/en/calculators/hash): Generate MD5, SHA-1, SHA-256, SHA-512 and other hashes from text
- [HMAC Generator](https://iptool.net.ua/en/calculators/hmac): Keyed-hash message authentication codes (HMAC-SHA256, etc.)
- [Bcrypt Generator](https://iptool.net.ua/en/calculators/bcrypt): Bcrypt hash generator and verifier with configurable cost
- [Encryption Tool](https://iptool.net.ua/en/calculators/encryption): AES-256-GCM encrypt/decrypt text in the browser
- [UUID Generator](https://iptool.net.ua/en/calculators/uuid): Generate and parse UUID v1, v4, v5, v7
- [Base64 Encoder](https://iptool.net.ua/en/calculators/base64): Encode and decode Base64 strings
- [NATO Alphabet](https://iptool.net.ua/en/calculators/nato-alphabet): Convert text to NATO phonetic alphabet
- [find Command Builder](https://iptool.net.ua/en/calculators/find): Visual builder for Unix find command

### Converters
- [Unit Converter](https://iptool.net.ua/en/converters/unit-converter): Length, weight, temperature, speed, data size and more
- [Number Converter](https://iptool.net.ua/en/converters/number-converter): Convert between decimal, binary, octal, hex
- [Punycode Converter](https://iptool.net.ua/en/converters/punycode): Encode/decode internationalized domain names (IDN)
- [Color Converter](https://iptool.net.ua/en/converters/color-converter): Convert between HEX, RGB, HSL, HSV color formats
- [Case Converter](https://iptool.net.ua/en/converters/case): Transform text case - UPPER, lower, Title, camelCase, snake_case

### Security Tools
- [Password Generator](https://iptool.net.ua/en/tools/passgen): Cryptographically secure random passwords with configurable rules
- [htpasswd Generator](https://iptool.net.ua/en/tools/htpasswd): Generate Apache htpasswd entries (bcrypt, SHA-1, MD5)
- [Key Generator](https://iptool.net.ua/en/tools/key-generator): Generate random hex/base64 keys for encryption, API tokens, secrets

### Reference
- [Router Default Passwords](https://iptool.net.ua/en/references/passwd): Default login credentials for routers by vendor
- [THW99 Hardware Reference](https://iptool.net.ua/th99): Legacy connector pinouts, cable diagrams, hardware specs

## API

JSON API endpoints are available for programmatic access:
- `/api/device.json` - detect visitor IP, user agent, device info
- `/{locale}/api/email-check/*` - email validation (init, dns, smtp, ptr steps)
- `/api/cron/next-runs` - calculate next cron execution times

## Contact

Email: admin@iptool.net.ua