PDF, image, text, SEO, and network tools — all in one place.

Free, instant tools for everyday work: merge and split PDFs, compress images, check SEO and DNS, convert units, generate secure passwords, and more. No signup, no clutter.

Combine multiple PDF files into one, in the order you choose.

Split a PDF into separate files by page range, delivered as a zip.

File Size Checker

Check an image's file size, dimensions, format, and color mode instantly.

Color Palette Generator

Upload an image to instantly extract its dominant color palette.

Image Compressor

Reduce the file size of a JPG or PNG image, with a choice of compression level.

Calculate your Body Mass Index from your weight and height, in metric or imperial units.

Calculate an exact age in years, months, and days from a birth date.

Percentage Calculator

Calculate what a given percentage of a value is.

Loan Calculator

Calculate the monthly payment and total interest on a fixed-rate loan.

Angle Converter

Convert an angle value between degrees, radians, gradians, and turns.

Convert an area between square meters, square kilometers, square feet, square yards, and acres.

Convert a data size between bytes, kilobytes, megabytes, gigabytes, and terabytes.

Density Converter

Convert a density value between kilograms per cubic meter, grams per cubic centimeter, pounds per cubic foot, and kilograms per liter.

Energy Converter

Convert an energy value between joules, kilojoules, calories, kilocalories, and watt-hours.

Flow Rate Converter

Convert a flow rate value between liters per second, cubic meters per hour, gallons per minute, and cubic feet per minute.

Force Converter

Convert a force value between newtons, kilonewtons, pound-force, and kilogram-force.

Frequency Converter

Convert a frequency value between hertz, kilohertz, megahertz, and gigahertz.

Fuel Efficiency Converter

Convert a fuel efficiency value between miles per gallon, kilometers per liter, and liters per 100 kilometers.

Length Converter

Convert a length between meters, feet, inches, kilometers, centimeters, miles, and yards.

Power Converter

Convert a power value between watts, kilowatts, horsepower, and megawatts.

Pressure Converter

Convert a pressure value between pascals, atmospheres, bars, and pounds per square inch.

Speed Converter

Convert a speed between kilometers per hour, miles per hour, meters per second, and knots.

Temperature Converter

Convert a temperature between Celsius, Fahrenheit, and Kelvin.

Convert a time duration between seconds, minutes, hours, days, and weeks.

Torque Converter

Convert a torque value between newton-meters, foot-pounds, inch-pounds, and kilogram-force meters.

Volume Converter

Convert a volume between liters, milliliters, cubic meters, gallons, and cubic feet.

Weight Converter

Convert a weight between kilograms, grams, pounds, and ounces.

Paste or type your text below to instantly count its words.

Paste or type your text below to instantly convert its case.

Convert text to binary or binary back to text, UTF-8-safe for any language or emoji.

QR Code Generator

Enter any text or URL to instantly generate a downloadable QR code.

Timestamp Converter

Convert between Unix timestamps and human-readable dates, entirely in your browser.

Password Generator

Generate a random, cryptographically-secure password entirely in your browser.

Password Strength Checker

Check how strong a password is, with live feedback, entirely in your browser.

YouTube Video Downloader

Download a YouTube video by URL. YouTube's own bot-detection means some downloads need a retry.

Title Length Checker

Check whether a page title is the right length for search engine results.

Meta Tag Generator

Generate a ready-to-paste HTML meta tag snippet from a title, description, and keywords.

URL Slug Generator

Convert any text into a clean, URL-friendly slug.

Content Readability Analyzer

Analyze a piece of text and get its Flesch reading-ease and Flesch-Kincaid grade-level scores.

Social Media Tags Generator

Generate Open Graph / Twitter Card meta tags so your page looks right when shared on social media.

Preview how a page might appear as a Google search result.

Keyword Density Checker

Analyze how often each keyword appears in your text, as a percentage of total word count.

Keyword Extractor

Extract the top ranked key phrases from a piece of text using the RAKE algorithm.

Audit a URL's meta tags, heading structure, broken links, sitemap, image alt text, and page speed.

Website Down Detector

Check whether a website is currently up or down for everyone.

DNS Lookup Tool

Look up A, AAAA, MX, TXT, NS, and CNAME records for a domain.

Check a domain's SSL/TLS certificate - validity, issuer, and expiry.

Look up a domain's registrar, creation and expiration dates, and name servers. Registrant organization is often withheld for privacy (GDPR).

IP Address Lookup

Look up who owns or operates an IP address - ASN, network name, CIDR block, country, and abuse contact. Does not return city-level location or geolocation data.

Website Speed Test

Measure DNS, connection, and time-to-first-byte timing for a website.

URL Encoder/Decoder

Percent-encode a URL for safe use in links and query strings, or decode one back to its original form.

Check whether a URL is well-formed and reachable.

Grammar Checker

Check your text for grammar, spelling, and style issues, and get a corrected version.

Keyword Research

Get AI-generated related keyword suggestions with estimated volume and competition for a seed keyword.

Content Idea Generator

Get AI-generated blog title, video concept, and social post ideas for a topic.

Social Trend Analyzer

Get AI-generated hashtag and content idea suggestions for a topic across Instagram, TikTok, Twitter/X, and Facebook.

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