Is This Website Down
Check whether a public URL responds from Cloudflare, with status and response time.
Network & DNSOpen toolEvery utility you need, instant and private.
PageUtil publishes 59 free tools for DNS, HTTP, text, encoding, and everyday calculations. You can open any of them without an account. Browser tools, including passwords, hashes, JSON, and the calculators, run on this device, and the text you paste is not uploaded. Network checks are separate. A website status check, a public IP reading, geolocation for this connection, Whois, a TLS expiry check, HTTP headers, a redirect trace, and a single port check send only the URL or host you submit. Those checks are not stored and are not logged. DNS lookup asks Cloudflare's public resolver from the browser and does not follow CNAME targets. Ads and analytics cookies stay off until you accept them.
- Analytics and ad cookies stay optional
- Browser tools run on this device
- Network checks are not stored
- Free to use
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Showing 59 / 59 tools
Network & DNS
What Is My IP
Show the visitor public IP from CF-Connecting-IP. Nothing is stored.
Network & DNSOpen toolIP Geolocation
Approximate country, city, and network for this connection. Not a pasted-IP lookup.
Network & DNSOpen toolDNS Lookup
Look up A, AAAA, MX, TXT, NS and CNAME records via DNS over HTTPS.
Network & DNSOpen toolWhois Lookup
Registrar, nameservers and expiry for a domain, from RDAP.
Network & DNSOpen toolSSL Expiry Checker
Read the TLS certificate on a public host and show issuer, expiry, and days left.
Network & DNSOpen toolHTTP Status Codes
Explain a status code, from 200 OK to 503 Service Unavailable.
Network & DNSOpen toolHTTP Headers
Fetch the response headers for a public URL.
Network & DNSOpen toolRedirect Checker
List each redirect hop, status and location.
Network & DNSOpen toolPort Check
Check one public TCP port. A timeout is not proof it is closed. Not a scanner.
Network & DNSOpen toolUser-Agent Parser
Split a user-agent string into browser, version and operating system.
Network & DNSOpen toolCIDR Calculator
Network, broadcast, usable range and netmask for an IPv4 CIDR.
Network & DNSOpen toolSecurity & Crypto
UUID Generator
Generate version 4 UUIDs in the browser.
Security & CryptoOpen toolPassword Generator
Generate a random password locally. It is not sent or saved.
Security & CryptoOpen toolPassword Strength
Score a password in the page. It never leaves the browser.
Security & CryptoOpen toolBase64 Encode and Decode
Encode or decode Base64, including Unicode.
Security & CryptoOpen toolURL Encoder
Encode or decode a URL component.
Security & CryptoOpen toolHash Generator
SHA-256 a string in the browser.
Security & CryptoOpen toolJWT Decoder
Decode a JWT header and payload. The signature is not verified.
Security & CryptoOpen toolFormatters & Code
Cron Parser
Read a five-field cron expression in plain English.
Formatters & CodeOpen toolHTML Escape
Escape or unescape HTML special characters.
Formatters & CodeOpen toolJSON Formatter
Format, validate and minify JSON.
Formatters & CodeOpen toolXML Formatter
Format XML and show parse errors.
Formatters & CodeOpen toolRegex Tester
Test a JavaScript regular expression against sample text.
Formatters & CodeOpen toolRobots.txt Generator
Generate a robots.txt for allow, disallow and sitemap.
Formatters & CodeOpen toolhtaccess Redirect Generator
Emit one Apache redirect rule.
Formatters & CodeOpen toolText & String
Text Diff
Compare two pasted texts line by line.
Text & StringOpen toolWord Counter
Count words, characters and lines as you type.
Text & StringOpen toolCase Converter
Convert text to upper, lower, title or sentence case.
Text & StringOpen toolSlug Generator
Turn a title into a lowercase hyphenated slug.
Text & StringOpen toolLorem Ipsum Generator
Generate placeholder paragraphs.
Text & StringOpen toolRemove Duplicate Lines
Drop duplicate lines and keep the first occurrence.
Text & StringOpen toolSort Lines
Sort pasted lines A to Z or Z to A.
Text & StringOpen toolFind and Replace
Find and replace in pasted text.
Text & StringOpen toolMedia & Design
Email Validator
Check email syntax only. It does not verify the mailbox.
Media & DesignOpen toolQR Code Generator
Make a QR code from text or a URL and download the PNG.
Media & DesignOpen toolBarcode Generator
Generate a Code 128 barcode and download it.
Media & DesignOpen toolHex to RGB
Convert colours between hex, RGB and HSL.
Media & DesignOpen toolContrast Checker
WCAG contrast ratio for two colours.
Media & DesignOpen toolFavicon Generator
Draw a letter favicon and download a PNG.
Media & DesignOpen toolOpen Graph Generator
Build title, description and Open Graph tags.
Media & DesignOpen toolMIME Type Lookup
MIME type for a file extension.
Media & DesignOpen toolAspect Ratio Calculator
Simplify a width and height, or find the missing side.
Media & DesignOpen toolCalculators
Percentage Calculator
Percent of a number, a ratio, or a percent change.
CalculatorsOpen toolTip Calculator
Work out a tip and split the bill.
CalculatorsOpen toolAge Calculator
Age in years, months and days from a date of birth.
CalculatorsOpen toolDate Difference
Count the days between two dates.
CalculatorsOpen toolBMI Calculator
Body mass index from height and weight. Not a diagnosis.
CalculatorsOpen toolLoan Payment Calculator
Fixed monthly payment and total interest. Fees excluded.
CalculatorsOpen toolUnit Converter
Convert length, weight and temperature.
CalculatorsOpen toolBytes Converter
Convert bytes, KB, MB and GB, binary or decimal.
CalculatorsOpen toolTime & Random
Unix Timestamp Converter
Convert epoch seconds or milliseconds to a date, and back.
Time & RandomOpen toolTime Zone Converter
Convert a time between IANA time zones.
Time & RandomOpen toolEpoch Now
Current Unix time in seconds and milliseconds.
Time & RandomOpen toolCountdown
Count down to a date and time.
Time & RandomOpen toolRandom Number
A random integer between two values, inclusive.
Time & RandomOpen toolDice Roller
Roll dice in the browser and show each face.
Time & RandomOpen toolCoin Flip
Flip a fair coin.
Time & RandomOpen toolYes or No
Answer yes or no at random.
Time & RandomOpen toolNo tools match those filters.
Questions
What runs locally?
Browser tools run on this device. Passwords, tokens, hashes, JSON, text, and the calculators are not uploaded. DNS lookup is the exception: the browser sends the hostname and record type to Cloudflare's public DNS-over-HTTPS resolver, and that lookup does not follow CNAMEs.
What is sent to the Worker?
A website check, this connection's public IP and approximate location, Whois, a TLS certificate check, HTTP headers, a redirect trace, and a single port check send only the URL or host you submit. The Worker does not store those checks and does not log them. Whois uses RDAP.
Is an account required?
No. The tools are free and there is no account. Ads and analytics cookies stay off until you accept them.