A Lookup
Query IPv4 addresses for multiple domains and copy the results table.
DNS Records
Core DNS records for domains and hostnames.
AAAA Lookup
Query IPv6 addresses for multiple domains at once.
CNAME Lookup
Look up canonical alias targets for multiple hostnames.
NS Lookup
Query nameservers and resolve each nameserver IP.
TXT Lookup
View all TXT records for domains or hostnames.
SOA Lookup
View primary NS, serial, and zone timing values.
SRV Lookup
Query service records such as _sip._tcp.example.com.
CAA Lookup
Check which CAs are allowed to issue certificates for a domain.
All Records
Query a combined view of common DNS records.
Email Security
MX, SPF, DKIM, and DMARC for email operations.
MX Lookup
Query mail servers and resolve IPs for each MX target.
SPF Lookup
Extract SPF records from domain TXT records.
DKIM Lookup
Query TXT records at selector._domainkey.domain.
DMARC Lookup
Query TXT records at _dmarc.domain.
Gmail Dot Trick
Generate dot variants for a Gmail address.
Email Signature Generator
Create a simple HTML email signature.
Network / IP
IP lookup, reverse DNS, and network information.
IP Lookup
Look up ASN, ISP, organization, geolocation, and PTR for IPs.
PTR Lookup
Reverse DNS lookup from IP address to hostname.
What is my IP?
View your public IP and a few connection headers.
Subnet Calculator
Calculate network, broadcast, subnet mask, and usable hosts from IPv4/CIDR.
CIDR Checker
Check whether an IPv4 address belongs to one or more CIDR ranges.
IP Range to CIDR
Convert an IPv4 range into the smallest CIDR block list.
CIDR to IP Range
Convert one or more CIDRs into network, broadcast, and usable IP ranges.
Port Checker
Quickly check whether a host or IP has common TCP ports open.
SSL Certificate Checker
Read the live SSL/TLS certificate and inspect expiry, issuer, subject, and SANs.
RDAP Lookup
Look up domain registration or IP allocation data through RDAP.
IPv4 Converter
Convert IPv4 between dotted, decimal, hex, and binary forms.
IPv6 Formatter
Expand, compress, and create reverse DNS notation for IPv6 addresses.
HTTP Header Checker
Inspect status code, redirect chain, response headers, and basic security headers.
Generators
Quickly generate passwords, UUIDs, QR codes, fake data, and small snippets.
Calculators
Small calculators for dates, percentages, BMI, ratios, and currency.
BMI Calculator
Calculate BMI from weight and height.
Sleep Calculator
Suggest bedtimes based on sleep cycles.
Date Calculator
Calculate date differences or add/subtract days.
Percentage Calculator
Calculate ratios, percent of a number, and percentage changes.
Currency Converter
Convert currencies using a public exchange-rate API.
Aspect Ratio Calculator
Calculate aspect ratio and matching dimensions.
Text / Data
Tools for text, Markdown, CSV, and JSON.
Word Counter
Count words, characters, and lines in text.
CSV to JSON/Excel Converter
Convert simple CSV into JSON or TSV.
JSON Editor
Format, minify, and validate JSON.
Markdown Editor
Write Markdown and see a basic preview.
Text Diff / Compare
Compare two text blocks and highlight added or removed lines.
Base64 Converter
Encode or decode Base64 for UTF-8 text.
URL Encoder & Decoder
Encode, decode, and inspect URL query parameters.
Developer
Small utilities for debugging, metadata, JWT, and cron.
JWT Debugger
Decode JWT header and payload in the browser.
Unix Time Converter
Convert Unix timestamps to local/UTC time and back.
Hash Text (Crypto)
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes for text.
Meta Tag Generator
Generate SEO, Open Graph, and Twitter/X meta tags with image previews.
Crontab Explainer
Quickly explain the five basic fields of a cron expression.
JS Beautify
Quickly format JavaScript in the browser.
JS Obfuscator
Basic JavaScript obfuscation for small snippets.
Curl to Code
Convert basic cURL commands into JavaScript, PHP, or Python.
Fake Data Generator
Generate sample JSON data for quick testing.
Campaign URL Builder
Build URLs with UTM parameters.
Media
Work with images, screenshots, and QR files.
Productivity
Small tools for focus, timing, and random choices.
Typing Speed Test
Measure typing WPM and accuracy.
Lucky Wheel
Enter options and spin for a random pick.
Pomodoro Timer
A simple Pomodoro timer for focus sessions.
Stopwatch
A stopwatch with lap recording.
CV Builder
Build a one-page CV with live preview and browser PDF printing.
Design
Color and visual checking tools.
Image Color Palette Extractor
Extract prominent colors from an image.
Color Converter
Convert between HEX, RGB, and HSL.
Color Contrast Checker
Check WCAG contrast ratio between text and background.
Scrollbar Customizer
Generate scrollbar CSS and preview it live.
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