P

Password Strength Checker

Score any password and estimate crack time

P

Password Generator

Create strong random passwords up to 128 chars

R

Random String Generator

Random tokens, IDs and keys with any charset

S

SHA-256 Generator

Hash text to a 64-char SHA-256 digest

M

MD5 Generator

Compute the 32-char MD5 checksum of any text

S

SHA-1 Generator

Generate the 40-char SHA-1 hash of any input

H

HMAC Generator

HMAC-MD5, SHA-1, SHA-256 & SHA-512 with secret key

B

bcrypt Generator / Checker

Hash passwords with bcrypt and verify hashes

I

IP Address Checker

Identify IPv4 vs IPv6, public/private and more

I

IPv4 Calculator

Network, broadcast, hosts, subnet mask & wildcard

I

IPv6 Calculator

Expand, compress and subnet IPv6 addresses

S

Subnet Calculator

CIDR ranges, wildcard masks and usable hosts

M

MAC Address Generator

Random valid MAC addresses, unicast or multicast

P

Port Checker

Learn what each TCP/UDP port number means

D

DNS Lookup

Resolve A, AAAA, MX, NS, TXT and CNAME records

W

WHOIS Lookup

Domain registration, expiry and registrar info

H

HTTP Header Analyzer

Security, caching & SEO headers explained

U

User-Agent Parser

Decode browser, OS and device from any UA

M

MIME Type Lookup

File extension to MIME type reference

H

HTTP Status Code Lookup

Every status code 1xx–5xx explained

here