Search 500+ Free Tools

Count words, characters, sentences, paragraphs and reading time.

Convert text to UPPER, lower, Title, camelCase, snake_case & more.

Generate placeholder lorem ipsum text with custom length options.

Compare two texts and highlight the differences line by line.

Repeat any text or character a specified number of times.

Write markdown and see a live rendered HTML preview side by side.

Escape or unescape special characters in JavaScript, HTML, URL strings.

Reverse any text string character by character instantly.

Remove all duplicate lines from any block of text.

Sort lines alphabetically, numerically, or in reverse order.

Strip blank and empty lines from your text instantly.

Prepend line numbers to every line in your text.

Find and replace text with optional case-sensitive matching.

Extract all email addresses from a block of text.

Extract all URLs and links from any block of text.

Extract all numeric values from a block of text.

Strip all HTML tags and get clean plain text output.

Analyze and count word frequency in any block of text.

Analyze how often each character appears in your text.

Convert plain text to International Morse Code dots and dashes.

Decode Morse Code dots and dashes back to plain readable text.

Convert text to binary (0s and 1s) ASCII representation.

Convert binary code back to readable plain text.

Convert English text to Pig Latin for fun and learning.

Encode or decode text using the ROT13 substitution cipher.

Encrypt or decrypt text using a Caesar cipher with custom shift.

Reverse the order of all words in a sentence or paragraph.

Check if any text, word, or phrase is a palindrome.

Check if two words or phrases are anagrams of each other.

Get detailed statistics about any piece of text.

Calculate Flesch-Kincaid readability score for your content.

Strip all punctuation marks from text instantly.

Remove all numeric digits from any text string.

Extract and keep only the numbers from any text.

Convert text to NATO phonetic alphabet format.

Convert any number to its English word equivalent.

Truncate text to a specified character or word limit.

Remove extra spaces, tabs, and whitespace from text.

Convert text keywords into social media ready hashtags.

Convert any text into a clean URL-friendly slug.

Convert camelCase identifiers to snake_case format.

Convert snake_case identifiers to camelCase format.

Convert text to aLtErNaTiNg CaSe style.

Flip your text upside down using Unicode characters.

Find and list all repeated words in your text.

Count the exact number of sentences in any text.

Sort individual words in a sentence alphabetically.

Format, validate, and minify JSON with syntax highlighting.

Encode or decode text and files using Base64 encoding.

Encode or decode URLs and query string parameters.

Test regular expressions with live match highlighting and flags.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes instantly.

Generate cryptographically random UUIDs (v4) in bulk.

Decode and inspect JWT tokens — header, payload and signature.

Minify and compress CSS code to reduce file size.

Encode or decode HTML entities in your markup.

Convert HEX, RGB, HSL, HSV colors with live preview.

Validate JSON syntax and check for structural errors.

Remove whitespace and minify JSON to reduce size.

Convert JSON arrays to CSV format for spreadsheets.

Convert CSV data to JSON format instantly.

Format and beautify XML documents with proper indentation.

Format and beautify SQL queries with proper indentation.

Beautify and format HTML markup with indentation.

Parse and explain cron schedule expressions in plain English.

Calculate Unix file permission chmod values visually.

Complete searchable reference for all HTTP status codes.

Look up MIME types for any file extension instantly.

Generate CSS box-shadow with visual live preview.

Create CSS border-radius values with visual preview.

Generate CSS text-shadow effects with live preview.

Generate CSS Flexbox layout code with visual editor.

Generate CSS Grid layout code with visual editor.

Generate complete HTML meta tags for SEO and social media.

Format numbers with commas, decimals, and custom separators.

Pick any color and instantly get HEX, RGB, HSL values.

Generate Apache .htaccess redirect and rewrite rules.

Convert Markdown syntax to HTML code instantly.

Convert HTML markup to clean Markdown syntax.

Generate cURL commands from URL, headers and method.

Compare two code snippets and highlight differences.

Create and sign JWT tokens with custom payload and headers.

Calculate exact age in years, months, days from a birthdate.

Calculate Body Mass Index with health range indicators.

Solve all percentage problems — of, change, error and more.

Calculate monthly EMI, total interest and amortization.

Calculate tips and split the bill among multiple people.

Calculate exact difference between two dates in all units.

Generate strong secure passwords with custom criteria.

Find final price after discount and calculate savings.

Calculate compound interest with different compounding frequencies.

Calculate simple interest on principal amount over time.

Calculate your GPA from course grades and credit hours.

Calculate final grade from weighted assignment scores.

Compare prices to find the best value per unit.

Calculate fuel cost for any trip distance and fuel type.

Calculate monthly electricity bill for any appliance.

Estimate income tax based on earnings and tax brackets.

Add or remove VAT from any price amount instantly.

Calculate profit margin and markup percentage for products.

Calculate selling price from cost price and markup %.

Calculate break-even point for your business or product.

Convert between annual, monthly, bi-weekly and hourly pay.

Calculate overtime pay for any hours worked over 40.

Project retirement savings growth over time with contributions.

Calculate return on investment percentage and profit.

Calculate monthly payments and interest for home loans.

Calculate time and interest to pay off credit card debt.

Estimate body fat percentage using body measurements.

Calculate ideal weight range for your height and gender.

Calculate daily water intake recommendation for your body.

Calculate daily calorie needs based on weight and activity.

Find optimal bedtimes based on 90-minute sleep cycles.

Calculate pace, speed and finish time for any run distance.

Full scientific calculator with trigonometry and more.

Convert length, weight, temperature, volume, area and speed.

Convert between binary, octal, decimal, and hexadecimal.

Convert Unix timestamps to human-readable dates and back.

Convert numbers to Roman numerals and vice versa.

Convert between 20+ world currencies with reference rates.

Convert between Celsius, Fahrenheit, and Kelvin.

Convert meters, feet, miles, inches, centimeters and more.

Convert kg, pounds, ounces, grams, tonnes and more.

Convert square meters, feet, acres, hectares and more.

Convert liters, gallons, cups, milliliters and more.

Convert km/h, mph, m/s, knots and other speed units.

Convert Pascal, bar, psi, atm and other pressure units.

Convert joules, calories, kilowatt-hours, BTU and more.

Convert bytes, KB, MB, GB, TB and other data units.

Convert between degrees, radians, and gradians.

Convert seconds, minutes, hours, days, weeks and years.

Convert Hz, kHz, MHz, GHz and other frequency units.

Convert MPG, L/100km, km/L and other fuel economy units.

Convert cups, tablespoons, teaspoons, ml and oz.

Convert shoe sizes between US, UK, EU, and Japanese systems.

Convert clothing sizes XS, S, M, L, XL internationally.

Convert CSS pixel values to REM units with custom base.

Convert CSS REM values back to pixel units.

Convert hexadecimal numbers to decimal (base 10).

Convert decimal numbers to hexadecimal format.

Convert binary numbers to decimal (base 10).

Convert decimal numbers to binary (base 2).

Convert octal numbers to decimal (base 10).

Convert decimal numbers to octal (base 8).

Convert characters to ASCII codes and back.

Convert characters to Unicode code points and back.

Convert pt, px, em, rem, and vw typography units.

Convert between DPI, PPI, and pixel dimensions.

Convert between HEX, RGB, HSL, and HSV color codes.

Calculate and convert image and video aspect ratios.

Generate QR codes for URLs, text, Wi-Fi, and contacts.

Generate beautiful 11-shade color palettes from any color.

Design CSS gradients visually and copy the code.

Generate random numbers within any custom range.

Generate random strings with custom character sets.

Generate random beautiful colors with hex and RGB codes.

Generate unique creative usernames from a seed or randomly.

Generate inspirational and motivational quotes randomly.

Generate realistic random names from around the world.

Generate cryptographically secure random tokens.

Generate formatted API keys and secret keys.

Generate random dates within any specified date range.

Generate realistic fake test email addresses.

Generate sequential or random invoice numbers.

Generate mock JSON data structures for testing.

Generate placeholder image URLs for mockups and wireframes.

Create CSS keyframe animations with visual controls.

Generate fully styled CSS buttons with live preview.

Generate Open Graph meta tags for social media sharing.

Generate favicon HTML link tags for all device types.

Generate robots.txt file to control search crawler access.

Generate a basic XML sitemap structure for your website.

Generate custom lorem ipsum paragraphs with options.

Generate short hash IDs from numeric values.

Generate random valid IEEE MAC addresses.

Generate secure and memorable word-based passphrases.

Generate random numeric PIN codes of any length.

Generate discount and promotional coupon codes.

Full scientific calculator with trigonometry, log, and more.

Add, subtract, multiply, and divide fractions easily.

Check if a number is prime and find all its factors.

Break any number down into its prime factors.

Find the Least Common Multiple of two or more numbers.

Find the Greatest Common Divisor of two or more numbers.

Generate the Fibonacci sequence up to N terms.

Calculate factorial of any number (n!).

Calculate C(n,r) — combinations of n things taken r at a time.

Calculate P(n,r) — permutations of n things taken r at a time.

Calculate basic probability: favorable / total outcomes.

Calculate mean, median, mode, and range for a data set.

Calculate population and sample standard deviation.

Calculate z-score from value, mean, and standard deviation.

Solve quadratic equations ax²+bx+c=0 with real solutions.

Solve single-variable linear equations for x.

Calculate any side of a right triangle from the other two.

Calculate area, circumference, and diameter of a circle.

Calculate area, perimeter, and angles of any triangle.

Calculate area, perimeter, and diagonal of a rectangle.

Calculate area and perimeter of regular polygons.

Calculate volume and surface area of a sphere.

Calculate volume and surface area of a cylinder.

Calculate volume and surface area of a cone.

Calculate log base 10, natural log, and log base 2.

Calculate any base raised to any power (x^y).

Calculate square root and nth root of any number.

Calculate the cube root of any number precisely.

Simplify ratios and solve ratio proportion problems.

Solve proportion equations to find the unknown value.

Round numbers to any decimal places or significant figures.

Calculate the modulo (remainder) of any division operation.

Add, subtract, and multiply binary numbers.

Calculate determinant, inverse, and trace of 2×2 matrices.

Generate arithmetic and geometric number sequences.

Calculate multiple statistics from any numerical data set.

Advanced percentage calculations: of, change, reverse.

Calculate and display Pi to many decimal places.

Calculate golden ratio values and proportions.

Calculate the absolute value of any number.

Round numbers to a specified number of significant figures.

Add, subtract, and multiply hexadecimal numbers.

Add, subtract vectors and find magnitude and dot product.

Perform arithmetic in binary, octal, and hexadecimal.

Explore and calculate with Euler's number e ≈ 2.71828.

Calculate Basal Metabolic Rate calories burned at rest.

Calculate Total Daily Energy Expenditure with activity.

Calculate optimal protein, carbs, and fat macros for goals.

Calculate your 5 heart rate training zones.

Estimate your VO2 max fitness level from exercise data.

Calculate body fat % using Navy, BMI, and other methods.

Calculate waist-to-hip ratio and associated health risk.

Find ideal weight range using Devine, Robinson, and BMI.

Calculate recommended daily water intake for your body.

Calculate calorie deficit or surplus for weight goals.

Find the best bedtime based on 90-minute sleep cycles.

Estimate ovulation window and fertile days from cycle.

Calculate pregnancy due date from last menstrual period.

Calculate baby's exact age in weeks, months, and days.

Convert dog years to human years with breed size factor.

Convert cat years to human years accurately.

Calculate running pace, speed, and predicted race times.

Predict marathon and half-marathon finish time from pace.

Calculate calories burned based on weight and distance.

Calculate calories burned during swimming workouts.

Calculate daily protein needs based on weight and goals.

Calculate carbohydrate needs based on calories and goals.

Calculate healthy daily fat intake for your goals.

Calculate alcohol units from drink types and quantities.

Estimate Blood Alcohol Content based on drinks and weight.

Calculate fertile days and fertility window from cycle.

Check blood pressure ranges and health categories.

Understand cholesterol numbers and healthy ranges.

Estimate vitamin D needs and recommended sun exposure.

Convert daily step count to km or miles walked.

Calculate cycling power training zones from your FTP.

Calculate BMI for children ages 2–19 with percentiles.

Find healthy weight range for your height using BMI.

Calculate recommended daily dietary fiber intake.

Breathing exercises and meditation session guidance.

Create a monthly budget plan and see where money goes.

Calculate time and contributions to reach any savings goal.

Calculate the ideal size of your emergency fund.

Calculate your total net worth from assets and liabilities.

Calculate your DTI ratio for mortgage and loan approval.

Compare the financial cost of renting versus buying.

Calculate monthly payments and total cost for car loans.

Calculate student loan repayment schedule and total cost.

Calculate savings from refinancing a mortgage or loan.

Calculate down payment and PMI for home purchase.

Calculate maximum home price you can comfortably afford.

Calculate purchasing power change over time with inflation.

Calculate real value of money adjusted for inflation.

Calculate the effect of a pay raise on your take-home pay.

Calculate minimum hourly rate to meet freelance income goals.

Calculate invoice total with taxes, discounts, and fees.

Calculate sales tax amount and total price for any purchase.

Extract the VAT amount from a gross price including VAT.

Calculate cash back rewards from credit card spending.

Calculate annual and lifetime cost of monthly subscriptions.

Calculate how much you spend on coffee each year.

Calculate true cost per use to evaluate any purchase.

Calculate wealth growth from regular investing over time.

Calculate your Financial Independence Retire Early number.

Plan retirement savings needs and timeline to retirement.

Calculate dividend yield percentage from stock price.

Calculate total return on a stock investment over time.

Calculate profit or loss from currency exchange rates.

See the true cost of only making minimum credit payments.

Calculate potential side hustle income and tax implications.

Estimate proper tax withholding from your paycheck.

Maximize 401k contributions and calculate employer match.

See how regular savings grow with compound interest.

Convert hourly wage to annual salary and monthly income.

Calculate business profit, loss, and gross margin.

Calculate units needed to break even on a product.

Calculate food cost percentage for restaurants and cafes.

Estimate insurance premium costs and coverage needs.

See how extra payments reduce loan payoff time and interest.

Learn what actions help or hurt your credit score.

Generate complete HTML meta tags for any web page.

Generate Open Graph meta tags for social media sharing.

Generate Twitter Card meta tags for rich link previews.

Generate robots.txt to guide search engine crawlers.

Create XML sitemap structure for better search indexing.

Generate structured data schema markup for rich results.

Check keyword density percentage in any content.

Analyze content readability with Flesch-Kincaid score.

Create SEO-friendly URL slugs from page titles.

Generate canonical link tags to prevent duplicate content.

Optimize page title tags for search engine visibility.

Write and check meta description length and preview.

Generate hreflang tags for multilingual websites.

Generate breadcrumb structured data for navigation.

Generate FAQ schema markup for rich result snippets.

Generate Article structured data for news and blog posts.

Generate Product schema markup for e-commerce rich results.

Generate local business structured data for local SEO.

Comprehensive interactive on-page SEO audit checklist.

Guide to improving Core Web Vitals and page speed.

Understand LCP, FID, CLS and how to improve them.

Mobile-first SEO optimization checklist and guide.

Image SEO checklist, alt text guide and best practices.

Internal linking strategy guide for better SEO.

Generate optimized anchor text variations for links.

Calculate optimal content word count for SEO.

Local business SEO optimization checklist.

Preview how your page appears in Google search results.

Guide to diverse anchor text for backlink profiles.

Step-by-step guide to finding competitor keywords.

Pick any color and instantly get all color format codes.

Mix two colors together with an adjustable blend ratio.

Check contrast ratio for WCAG accessibility compliance.

Preview colors for different types of color blindness.

Find the nearest named color for any hex color code.

Find the complementary color and generate harmony palettes.

Generate analogous color schemes from any base color.

Generate triadic color harmonies from any base color.

Generate tetradic (square) color schemes.

Generate split complementary color palettes.

Generate monochromatic tints and shades of any color.

Generate soft pastel color variations from any color.

Generate vibrant neon and electric color palettes.

Generate natural earth tone color palettes.

Browse the complete Material Design color palette.

Browse all Tailwind CSS color swatches and hex values.

Complete reference for all 140+ CSS named colors.

Convert RGBA color values to HEX format instantly.

Convert HSL color values to RGB format.

Understand warm, cool, and neutral color temperatures.

Browse popular brand color palettes and hex values.

Generate multi-stop gradient color palettes.

Generate light to dark shades and tints of any color.

Explore all color harmony relationships interactively.

Learn the psychological meaning and effects of each color.

Check password strength and get detailed improvement tips.

Calculate the entropy bits and crack difficulty of a password.

Estimate the time needed to brute force any password.

Generate secure and memorable random word passphrases.

Generate time-based one-time passwords (TOTP codes).

Generate base32 secret keys for 2FA app setup.

Verify file integrity by comparing hash values.

Validate structure and decode JWT token claims.

Analyze, encode, and decode Base64 encoded strings.

Generate recommended HTTP security response headers.

Generate Content-Security-Policy header directives.

Generate proper CORS headers for web API configurations.

Cross-site scripting attack types and prevention guide.

SQL injection attack patterns and prevention best practices.

Check if a URL looks suspicious, phishing, or malicious.

Analyze email headers to trace sender and detect spam.

Generate a basic privacy policy template for your website.

Generate GDPR-compliant cookie consent banner code.

Interactive GDPR compliance checklist for websites.

Step-by-step guide to setting up two-factor authentication.

Comprehensive website security audit checklist.

Guide to SSL certificates, HTTPS setup and renewal.

REST API security best practices and implementation guide.

Generate a secure password policy for any organization.

Generate cryptographically secure random values and tokens.

Calculate network address, broadcast, and host ranges.

Calculate CIDR subnets, masks, and IP ranges.

Convert CIDR notation to full IP address range.

Generate random valid IEEE-compliant MAC addresses.

Searchable reference for common network port numbers.

Complete searchable HTTP status code reference guide.

Complete MIME types reference for file extensions.

Parse URL into protocol, host, path, query and fragment.

Parse URL query string parameters into key-value pairs.

Parse and identify browser user agent strings.

Parse HTTP Cookie header strings into key-value pairs.

Generate wss:// and ws:// WebSocket connection URLs.

Check and validate CORS configuration for web APIs.

Calculate file transfer time at different network speeds.

Comprehensive guide to DNS record types and their uses.

Complete HTTP request and response headers reference.

Compare TCP and UDP protocols with use case guide.

SSL/TLS certificates, protocols, and setup guide.

Guide to IP address classes A, B, C, D and their ranges.

Reference for private IP address ranges (RFC 1918).

Guide to choosing the right CDN provider for your needs.

Guide to localhost, 127.0.0.1, and loopback addresses.

Calculate download/upload time for files at any speed.

Detailed comparison of IPv4 and IPv6 protocols.

Guide to writing and understanding firewall rules.

Convert JSON objects to TypeScript interface definitions.

Convert JSON arrays to SQL INSERT statements.

Convert SQL query results to JSON format.

Format, clean, and validate CSV data.

Convert XML documents to JSON format.

Convert JSON data to well-formed XML format.

Parse and format .env environment variable files.

Generate .gitignore files for any project type or framework.

Generate .editorconfig for consistent code formatting.

Generate a valid package.json template for npm projects.

Generate TypeScript tsconfig.json with common options.

Generate Dockerfiles for common languages and frameworks.

Generate docker-compose.yml for multi-container apps.

Generate nginx server block configuration files.

Generate cron job expressions with human-readable schedule.

Quick reference guide for regular expression syntax.

Complete Git commands cheatsheet with examples.

Essential Linux command line reference with examples.

Quick reference for Vim editor commands and modes.

Complete Markdown syntax quick reference guide.

Quick reference for all HTML5 tags and attributes.

Quick reference for CSS properties and values.

Essential JavaScript syntax, methods and ES6+ reference.

Quick Python syntax and built-in functions reference.

Guide to all React hooks with usage examples.

Quick SQL commands, joins and queries reference guide.

Guide to HTTP methods: GET, POST, PUT, DELETE, PATCH.

Format and validate JSON API responses.

All HTML/CSS color names with hex values and previews.

Shortcuts for VS Code, Windows, Mac, Chrome and more.

Visualize and explore JSON data as an interactive tree.

Validate JSON data against a custom schema definition.

Compare two JSON objects and highlight all differences.

Render CSV data as a formatted, styled HTML table.

Extract HTML table data and convert it to CSV format.

Format and beautify SQL queries with proper indentation.

Format dates in any custom format (ISO, US, EU, etc).

Format numbers with custom decimals and separators.

Format phone numbers in E.164 and international formats.

Validate credit card numbers using the Luhn algorithm.

Validate ISBN-10 and ISBN-13 book numbers.

Validate IBAN bank account numbers by country.

Validate email address format and structure.

Validate URL format, protocol, and structure.

Format and normalize color codes in all formats.

Format MAC addresses in colon, dash, or dot notation.

Format and validate IPv4 and IPv6 addresses.

Format monetary amounts in any world currency format.

Format time durations in HH:MM:SS or human-readable form.

Convert and format file sizes between KB, MB, GB, TB.

Format postal addresses in US, UK, and international formats.

Format and validate ZIP and postal codes by country.

Extract data from text using custom regular expressions.

Remove duplicate rows or entries from CSV and text data.

Split large CSV files into smaller chunks by row count.

Visual flexbox layout generator with live code output.

Visual CSS grid layout generator with copy code.

Create CSS keyframe animations with visual controls.

Generate CSS transition with easing and duration.

Create and preview multi-layer CSS box shadows.

Create complex CSS border-radius values visually.

Create and preview CSS text shadow effects.

Advanced CSS gradient builder with live preview.

Generate CSS filter effects: blur, brightness, contrast.

Generate CSS clip-path shapes visually.

Generate pure CSS triangles using border trick.

Generate CSS arrow shapes and indicators.

Generate CSS loading spinners and animations.

Generate styled button CSS code with hover effects.

Generate CSS tooltip styles for any element.

Generate CSS card component with shadow and hover.

Generate CSS media query breakpoints for responsive design.

Generate CSS custom properties (variables) scaffolding.

Search and find Tailwind CSS utility class names.

Search Bootstrap 5 CSS classes and components.

Calculate CSS selector specificity (inline, ID, class).

Convert between px, rem, em, vw, vh CSS units.

Minify CSS code to reduce file size for production.

Format and beautify CSS code with proper indentation.

Compare and choose the right CSS reset for your project.

Roll any dice type: d4, d6, d8, d10, d12, d20, custom.

Flip a virtual coin and track heads or tails results.

Ask any question and receive a mystical 8 ball answer.

Get inspirational, funny, and motivational random quotes.

Get random jokes across different categories and styles.

Discover amazing and interesting random facts daily.

Create a custom spinning wheel for random decisions.

Enter options and let the randomizer pick one for you.

Find your zodiac sign and traits from your birthdate.

Calculate your numerology life path number and meaning.

Generate your lucky numbers based on name or random.

Play rock paper scissors against the computer.

Guess the secret number between 1 and 100.

Unscramble randomly mixed up words for fun.

Convert text into ASCII art using different font styles.

Generate creative random emoji-based story prompts.

Discover the origin and meaning of any first name.

Take a color quiz to discover personality traits.

Calculate how old you would be on other planets.

Get a random fun activity idea to try right now.

Generate catchy SEO-friendly blog post title ideas.

Generate compelling email subject lines that get opened.

Generate powerful calls-to-action for any context.

Score and analyze your headline for engagement and SEO.

Generate polished professional bio text for any platform.

Generate memorable brand taglines and slogans.

Generate impactful action-oriented resume bullet points.

Build a professional cover letter from a template.

Browse persuasive power words organized by category.

Detect passive voice constructions in your writing.

Get creative fiction and non-fiction writing prompts.

Generate story plot ideas with conflict and resolution.

Generate distinctive fictional character names.

Generate creative and compelling book title ideas.

Format written dialogue with proper punctuation and style.

Expand short notes into full descriptive paragraphs.

Rewrite complex sentences into plain, clear language.

Set and track your daily writing word count goals.

Calculate estimated reading time for any content.

Guide to APA, MLA, Chicago, and Harvard citations.

Format bibliographies in APA, MLA, or Chicago style.

Step-by-step guide to writing academic abstracts.

Professional press release template with guidance.

Email newsletter writing template and best practices.

Write engaging captions for Instagram, Twitter, LinkedIn.

Write compelling product descriptions that convert.

Generate professional "About Us" page content.

Create a clear and powerful company mission statement.

Write clear and helpful FAQ sections for any topic.

Build professional HTML email templates for campaigns.